{"id":3362,"date":"2026-10-15T09:51:17","date_gmt":"2026-10-15T01:51:17","guid":{"rendered":"https:\/\/sinoak.ru\/?p=3362"},"modified":"2026-10-15T13:49:12","modified_gmt":"2026-10-15T05:49:12","slug":"complete-vertical-tube-expander-selection-guide","status":"publish","type":"post","link":"https:\/\/sinoak.ru\/en\/complete-vertical-tube-expander-selection-guide\/","title":{"rendered":"Complete Selection Guide for Vertical Tube Expander Machines in HVAC Coil Manufacturing"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"3362\" class=\"elementor elementor-3362\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-361ec81d elementor-section-height-min-height elementor-section-boxed elementor-section-height-default elementor-section-items-middle\" data-id=\"361ec81d\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7af27f37\" data-id=\"7af27f37\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5f0a81d2 elementor-widget elementor-widget-jkit_post_title\" data-id=\"5f0a81d2\" data-element_type=\"widget\" data-widget_type=\"jkit_post_title.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div  class=\"jeg-elementor-kit jkit-post-title jeg_module___6ad1a8ef9f8e1\" ><h2 class=\"post-title style-color \">Complete Selection Guide for Vertical Tube Expander Machines in HVAC Coil Manufacturing<\/h2><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7d68da19 e-flex e-con-boxed e-con e-parent\" data-id=\"7d68da19\" data-element_type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-27ae3e9b elementor-view-default elementor-widget elementor-widget-icon\" data-id=\"27ae3e9b\" data-element_type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<div class=\"elementor-icon\">\n\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-user\" viewBox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M224 256c70.7 0 128-57.3 128-128S294.7 0 224 0 96 57.3 96 128s57.3 128 128 128zm89.6 32h-16.7c-22.2 10.2-46.9 16-72.9 16s-50.6-5.8-72.9-16h-16.7C60.2 288 0 348.2 0 422.4V464c0 26.5 21.5 48 48 48h352c26.5 0 48-21.5 48-48v-41.6c0-74.2-60.2-134.4-134.4-134.4z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6d1088be elementor-widget elementor-widget-jkit_post_author\" data-id=\"6d1088be\" data-element_type=\"widget\" data-widget_type=\"jkit_post_author.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div  class=\"jeg-elementor-kit jkit-post-author jeg_module__1_6ad1a8efa8757\" ><p class=\"post-author \">Steve<\/p><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1bc72eaa elementor-view-default elementor-widget elementor-widget-icon\" data-id=\"1bc72eaa\" data-element_type=\"widget\" data-widget_type=\"icon.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-icon-wrapper\">\n\t\t\t<div class=\"elementor-icon\">\n\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-far-clock\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256 8C119 8 8 119 8 256s111 248 248 248 248-111 248-248S393 8 256 8zm0 448c-110.5 0-200-89.5-200-200S145.5 56 256 56s200 89.5 200 200-89.5 200-200 200zm61.8-104.4l-84.9-61.7c-3.1-2.3-4.9-5.9-4.9-9.7V116c0-6.6 5.4-12 12-12h32c6.6 0 12 5.4 12 12v141.7l66.8 48.6c5.4 3.9 6.5 11.4 2.6 16.8L334.6 349c-3.9 5.3-11.4 6.5-16.8 2.6z\"><\/path><\/svg>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-284f815a elementor-widget elementor-widget-jkit_post_date\" data-id=\"284f815a\" data-element_type=\"widget\" data-widget_type=\"jkit_post_date.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div  class=\"jeg-elementor-kit jkit-post-date jeg_module__2_6ad1a8efaa872\" ><p class=\"post-date \">2026-10-15<\/p><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-553d955 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"553d955\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-278e5fab\" data-id=\"278e5fab\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-15483367 elementor-widget elementor-widget-jkit_post_featured_image\" data-id=\"15483367\" data-element_type=\"widget\" data-widget_type=\"jkit_post_featured_image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div  class=\"jeg-elementor-kit jkit-post-featured-image jeg_module__3_6ad1a8efaca88\" ><div class=\"post-featured-image \"><img fetchpriority=\"high\" decoding=\"async\" width=\"2560\" height=\"1441\" src=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-scaled.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"\" srcset=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-scaled.jpg 2560w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-300x169.jpg 300w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-1024x577.jpg 1024w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-768x432.jpg 768w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-1536x865.jpg 1536w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-2048x1153.jpg 2048w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-18x10.jpg 18w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b9f4e0e elementor-widget elementor-widget-heading\" data-id=\"b9f4e0e\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Complete Selection Guide for Vertical Tube Expander Machines in HVAC Coil Manufacturing<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7796b58 elementor-widget elementor-widget-spacer\" data-id=\"7796b58\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-358317d elementor-widget elementor-widget-text-editor\" data-id=\"358317d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p data-path-to-node=\"8\">In finned tube heat exchanger manufacturing, achieving maximum thermal transfer efficiency relies heavily on the quality of mechanical bonding between the tubes and fin collars. Specifically, after hairpin tubes are laced through the stamped fin matrix, a Vertical Tube Expander Machine drives mechanical bullet mandrels through the interior of the tubes. As a result, this action expands them outward into a precision interference fit with the fin collars.<\/p><p data-path-to-node=\"9\">Currently, vertical tube expanders are widely preferred for medium-to-large production runs of residential and commercial evaporators, condensers, and unit coolers. This is mainly due to their minimal floor space footprint, fast setup times, and superior gravity-assisted coil alignment.<\/p><p data-path-to-node=\"10\">Therefore, this comprehensive engineering guide explores the mechanical principles, structural drive architectures, quality control mechanisms, maintenance procedures, and technical RFQ checklists needed when specifying a vertical tube expander for your facility.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-8f65695 e-con-full e-flex e-con e-parent\" data-id=\"8f65695\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-064c14c elementor-widget elementor-widget-spacer\" data-id=\"064c14c\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-32e0630 elementor-widget elementor-widget-heading\" data-id=\"32e0630\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">1. Core Functions and Process Breakdown<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8901a54 elementor-widget elementor-widget-spacer\" data-id=\"8901a54\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f7632ac elementor-widget elementor-widget-text-editor\" data-id=\"f7632ac\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p data-path-to-node=\"13\">Unlike horizontal expansion systems that require extensive floor space to accommodate long drive rods, a vertical tube expander utilizes overhead vertical stroke motion. Specifically, the machine completes four automated stages during a single cycle:<\/p><ul data-path-to-node=\"14\"><li><p data-path-to-node=\"14,0,0\">Stage 1: Coil Loading and Clamping: First, the laced coil block is loaded vertically into the machine frame. Simultaneously, pneumatic or hydraulic side-clamping jaws secure the fin pack to prevent fin distortion during the stroke.<\/p><\/li><li><p data-path-to-node=\"14,1,0\">Stage 2: Bottom Flare and End Sizing: Next, bottom tooling clamps the tube ends, preparing them with precise bell expansions or flares for subsequent return bend brazing.<\/p><\/li><li><p data-path-to-node=\"14,2,0\">Stage 3: Mandrel Expansion Stroke: Following this, overhead expansion rods equipped with hardened tungsten carbide bullet mandrels travel downward through the tube interior. Consequently, this process expands the metal wall outward to eliminate contact thermal resistance.<\/p><\/li><li><p data-path-to-node=\"14,3,0\">Stage 4: Mandrel Retraction and Unclamping: Finally, the expansion rods retract upward, and then the machine releases the coil block for unloading or automatic transfer to downstream assembly stations.<\/p><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-892d704 elementor-widget elementor-widget-image\" data-id=\"892d704\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"451\" src=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20241201_163539-1024x577.jpg\" class=\"attachment-large size-large wp-image-3369\" alt=\"\" srcset=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20241201_163539-1024x577.jpg 1024w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20241201_163539-300x169.jpg 300w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20241201_163539-768x432.jpg 768w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20241201_163539-1536x865.jpg 1536w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20241201_163539-2048x1153.jpg 2048w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20241201_163539-18x10.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0702193 e-con-full e-flex e-con e-child\" data-id=\"0702193\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-268e92f elementor-widget elementor-widget-spacer\" data-id=\"268e92f\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e66d06c elementor-widget elementor-widget-heading\" data-id=\"e66d06c\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">2. Technical Comparison: Drive Systems and Table Architectures<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f90e3f3 elementor-widget elementor-widget-text-editor\" data-id=\"f90e3f3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p data-path-to-node=\"17\">\u00a0<\/p><p data-path-to-node=\"17\">In practice, choosing the right drive system and table layout directly impacts positioning accuracy, cycle speed, energy efficiency, and overall productivity.<\/p><h5 data-path-to-node=\"18\">Drive System Comparison: Hydraulic vs CNC Servo Drive<\/h5><table data-path-to-node=\"19\"><thead><tr><td>Performance Metric<\/td><td>Hydraulic Vertical Expander<\/td><td>CNC Servo-Driven Vertical Expander<\/td><\/tr><\/thead><tbody><tr><td>Drive Mechanism<\/td><td>Heavy-duty hydraulic cylinders and power unit<\/td><td>High-torque AC Servo Motors and precision ball-screws<\/td><\/tr><tr><td>Expansion Speed Control<\/td><td>Controlled via proportional hydraulic valves<\/td><td>Digitally programmed via HMI with variable speed curves<\/td><\/tr><tr><td>Positioning Precision<\/td><td>Plus or minus 0.5 mm (Adjusted via limit switches)<\/td><td>Plus or minus 0.02 mm (Absolute encoder feedback)<\/td><\/tr><tr><td>Energy Consumption<\/td><td>Continuous hydraulic pump operation<\/td><td>On-demand power draw (Up to 35% energy savings)<\/td><\/tr><tr><td>Oil Contamination Risk<\/td><td>Requires thermal monitoring; risk of fluid leaks<\/td><td>Zero oil leaks; cleaner factory environment<\/td><\/tr><tr><td>Best Suited For<\/td><td>High-tonnage, heavy-wall industrial coil expansion<\/td><td>Ultra-thin wall, high-precision micro-groove coils<\/td><\/tr><\/tbody><\/table><h5 data-path-to-node=\"21\">\u00a0<\/h5><h5 data-path-to-node=\"21\">Table Setup Comparison: Single-Station vs Dual-Station Shuttle Table<\/h5><p>\u00a0<\/p><table data-path-to-node=\"22\"><thead><tr><td>Operating Feature<\/td><td>Single-Station Layout<\/td><td>Dual-Station Shuttle Table Layout<\/td><\/tr><\/thead><tbody><tr><td>Operator Efficiency<\/td><td>Operator waits during expansion stroke<\/td><td>Loading\/unloading happens simultaneously with stroke<\/td><\/tr><tr><td>Line Productivity<\/td><td>Baseline throughput<\/td><td>Up to 40% higher throughput<\/td><\/tr><tr><td>Factory Footprint<\/td><td>Compact floor space required<\/td><td>Slightly wider machine bed required<\/td><\/tr><tr><td>Initial Capital Investment<\/td><td>Lower equipment cost<\/td><td>Higher initial cost with rapid ROI<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6cad76f elementor-widget elementor-widget-spacer\" data-id=\"6cad76f\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6647cc7 e-con-full e-flex e-con e-child\" data-id=\"6647cc7\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-03cd309 elementor-widget elementor-widget-spacer\" data-id=\"03cd309\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-09c2c73 elementor-widget elementor-widget-heading\" data-id=\"09c2c73\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">3. Quality Defect Prevention and Process Control<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dbd4da2 elementor-widget elementor-widget-spacer\" data-id=\"dbd4da2\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3eee4e9 elementor-widget elementor-widget-text-editor\" data-id=\"3eee4e9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p data-path-to-node=\"25\">During high-speed vertical expansion, improper machine settings or worn tooling can lead to severe coil defects. However, understanding how modern machines prevent these issues is crucial for maintaining zero-defect production:<\/p><h5 data-path-to-node=\"26\">Defect 1: Tube Wall Splitting and Over-Expansion<\/h5><ul data-path-to-node=\"27\"><li><p data-path-to-node=\"27,0,0\">Primary Cause: This typically happens due to excessive bullet clearance or inconsistent tube wall thickness.<\/p><\/li><li><p data-path-to-node=\"27,1,0\">Effective Prevention: To solve this, CNC servo expanders utilize real-time torque and load monitoring. For instance, if resistance exceeds safety thresholds, the stroke automatically pauses, thereby preventing tube rupture and costly die damage.<\/p><\/li><\/ul><h5 data-path-to-node=\"28\">Defect 2: Fin Buckling and Collar Flattening<\/h5><ul data-path-to-node=\"29\"><li><p data-path-to-node=\"29,0,0\">Primary Cause: This is usually caused by inadequate or uneven side clamping force on the fin stack during the downward stroke.<\/p><\/li><li><p data-path-to-node=\"29,1,0\">Effective Prevention: In order to fix this, synchronized hydraulic or servo side-clamping plates ensure uniform lateral pressure across the entire coil face length before the mandrels enter the tubes.<\/p><\/li><\/ul><h5 data-path-to-node=\"30\">Defect 3: Micro-Groove Internal Ridge Damage<\/h5><ul data-path-to-node=\"31\"><li><p data-path-to-node=\"31,0,0\">Primary Cause: This occurs when pushing hard carbide bullets at fixed high speeds through delicate spiral-grooved copper tubes.<\/p><\/li><li><p data-path-to-node=\"31,1,0\">Effective Prevention: Instead, multi-stage variable expansion speed curves slow down mandrel velocity during initial entry and final exit, thus preserving internal micro-fin heat transfer geometry.<\/p><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6398841 elementor-widget elementor-widget-video\" data-id=\"6398841\" data-element_type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=0FGA2kb4XXY&quot;,&quot;autoplay&quot;:&quot;yes&quot;,&quot;mute&quot;:&quot;yes&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a250134 e-con-full e-flex e-con e-child\" data-id=\"a250134\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bf074e4 elementor-widget elementor-widget-spacer\" data-id=\"bf074e4\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c91171a elementor-widget elementor-widget-heading\" data-id=\"c91171a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">4. Equipment Maintenance and Operational Lifecycle<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c18c857 elementor-widget elementor-widget-spacer\" data-id=\"c18c857\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-832e1df elementor-widget elementor-widget-text-editor\" data-id=\"832e1df\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p data-path-to-node=\"34\">In addition, to guarantee a long operational lifespan and minimize unplanned downtime, routine preventive maintenance should be integrated into your production workflow:<\/p><table data-path-to-node=\"35\"><thead><tr><td>Maintenance Interval<\/td><td>Target Component \/ Task<\/td><td>Operational Objective<\/td><\/tr><\/thead><tbody><tr><td>Daily (Per Shift)<\/td><td>Inspect and clean bullet mandrels; check lubrication sprays<\/td><td>Prevents copper galling and scratches inside tubes<\/td><\/tr><tr><td>Weekly<\/td><td>Check expansion rod straightness and clamping jaw alignment<\/td><td>Ensures even expansion force across all tube rows<\/td><\/tr><tr><td>Monthly<\/td><td>Inspect ball-screws (Servo) or check hydraulic fluid quality<\/td><td>Maintains stroke positioning precision and speed control<\/td><\/tr><tr><td>Quarterly \/ Annual<\/td><td>Replace worn expansion bullets, O-rings, and rod guide bushings<\/td><td>Restores factory tolerance and prevents tolerance drift<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0909670 e-con-full e-flex e-con e-child\" data-id=\"0909670\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c459fea elementor-widget elementor-widget-spacer\" data-id=\"c459fea\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d8d94ff elementor-widget elementor-widget-heading\" data-id=\"d8d94ff\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">5. Application Matching Matrix<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-06e0e3d elementor-widget elementor-widget-spacer\" data-id=\"06e0e3d\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b39dbc6 elementor-widget elementor-widget-text-editor\" data-id=\"b39dbc6\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p data-path-to-node=\"38\">Overall, the choice of machine configuration depends heavily on your specific product application:<\/p><table data-path-to-node=\"39\"><thead><tr><td>Heat Exchanger Application<\/td><td>Typical Tube OD<\/td><td>Typical Coil Length<\/td><td>Recommended Machine Configuration<\/td><\/tr><\/thead><tbody><tr><td>Residential Split AC \/ Heat Pump<\/td><td>5 mm, 7 mm, 9.52 mm<\/td><td>400 mm to 1200 mm<\/td><td>Dual-Station CNC Servo Vertical Expander<\/td><\/tr><tr><td>Commercial Air Coolers \/ Condensers<\/td><td>9.52 mm, 12.7 mm<\/td><td>1000 mm to 2500 mm<\/td><td>Hydraulic or Servo Vertical Expander with Shuttle Table<\/td><\/tr><tr><td>Industrial Freezing \/ Cold Storage<\/td><td>12.7 mm, 15.88 mm<\/td><td>1500 mm to 3000 mm+<\/td><td>High-Tonnage Hydraulic Vertical or Horizontal Expander<\/td><\/tr><\/tbody><\/table>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0f37cf3 elementor-widget elementor-widget-image\" data-id=\"0f37cf3\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"451\" src=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20240421_093845-1024x577.jpg\" class=\"attachment-large size-large wp-image-3367\" alt=\"\" srcset=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20240421_093845-1024x577.jpg 1024w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20240421_093845-300x169.jpg 300w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20240421_093845-768x432.jpg 768w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20240421_093845-1536x865.jpg 1536w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20240421_093845-2048x1153.jpg 2048w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/20240421_093845-18x10.jpg 18w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-c1881c6 e-con-full e-flex e-con e-child\" data-id=\"c1881c6\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-bfc5186 elementor-widget elementor-widget-spacer\" data-id=\"bfc5186\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47aa93a elementor-widget elementor-widget-heading\" data-id=\"47aa93a\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Summary: Equipment Selection and RFQ Technical Checklist<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b88cc10 elementor-widget elementor-widget-spacer\" data-id=\"b88cc10\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9d68506 elementor-widget elementor-widget-text-editor\" data-id=\"9d68506\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p data-path-to-node=\"42\">In conclusion, specifying the correct vertical tube expander machine requires matching your heat exchanger block dimensions and tube parameters with the machine\u2019s tonnage and stroke capabilities.<\/p><p data-path-to-node=\"43\">To begin this process, please review and share the following specifications with your inquiry so our technical engineering team can design a custom vertical tube expander and prepare an itemized quote:<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-0901844 e-con-full e-flex e-con e-child\" data-id=\"0901844\" data-element_type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-88c34e6 elementor-widget elementor-widget-heading\" data-id=\"88c34e6\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">RFQ Technical Information Checklist:<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b5c579 elementor-widget elementor-widget-spacer\" data-id=\"0b5c579\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbad411 elementor-widget elementor-widget-text-editor\" data-id=\"cbad411\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"container\"><div id=\"model-response-message-contentr_f4e9f1df19d2b0ac\" class=\"markdown markdown-main-panel md-content enable-luminous-fast-follows enable-updated-hr-color stronger\" dir=\"ltr\" aria-busy=\"false\" aria-live=\"off\"><ol start=\"1\" data-path-to-node=\"45\"><li><p data-path-to-node=\"45,0,0\">Tube Specifications:<\/p><ul data-path-to-node=\"45,0,1\"><li><p data-path-to-node=\"45,0,1,0,0\">Tube material (Copper, Aluminum, CuNi, or Stainless Steel)<\/p><\/li><li><p data-path-to-node=\"45,0,1,1,0\">Tube Outer Diameter (OD) options (e.g., 5 mm, 7 mm, 9.52 mm, 12.7 mm, 15.88 mm)<\/p><\/li><li><p data-path-to-node=\"45,0,1,2,0\">Tube wall thickness and inner surface geometry (Smooth bore or Micro-grooved)<\/p><\/li><\/ul><\/li><li><p data-path-to-node=\"45,1,0\">Coil Block Dimensions:<\/p><ul data-path-to-node=\"45,1,1\"><li><p data-path-to-node=\"45,1,1,0,0\">Maximum and minimum coil face length (e.g., 300 mm to 2500 mm)<\/p><\/li><li><p data-path-to-node=\"45,1,1,1,0\">Maximum coil height (Width across fins) and maximum tube row depth (e.g., 1 to 8 rows)<\/p><\/li><li><p data-path-to-node=\"45,1,1,2,0\">Fin pattern matrix (e.g., 25 x 21.65 mm, 31.75 x 27.5 mm, 38 x 32.99 mm)<\/p><\/li><\/ul><\/li><li><p data-path-to-node=\"45,2,0\">Capacity and Machine Setup:<\/p><ul data-path-to-node=\"45,2,1\"><li><p data-path-to-node=\"45,2,1,0,0\">Target production output per 8-hour shift<\/p><\/li><li><p data-path-to-node=\"45,2,1,1,0\">Drive architecture preference (Hydraulic vs Full CNC Servo)<\/p><\/li><li><p data-path-to-node=\"45,2,1,2,0\">Shuttle table setup preference (Single station vs Dual-station indexing shuttle)<\/p><\/li><\/ul><\/li><li><p data-path-to-node=\"45,3,0\">Plant Facility Utilities:<\/p><ul data-path-to-node=\"45,3,1\"><li><p data-path-to-node=\"45,3,1,0,0\">Maximum available factory ceiling height clearance<\/p><\/li><li><p data-path-to-node=\"45,3,1,1,0\">Power supply specifications (e.g., 380V \/ 50Hz \/ 3-Phase)<\/p><\/li><li><p data-path-to-node=\"45,3,1,2,0\">Compressed air pressure and pneumatic supply availability<\/p><\/li><\/ul><\/li><\/ol><p data-path-to-node=\"47\">As a specialized engineering manufacturer of complete HVAC&amp;R machinery\u2014including high-speed fin press lines, custom fin dies, automatic hairpin benders, and vertical\/horizontal tube expanders\u2014SINOAK delivers complete production solutions tailored to your technical requirements.<\/p><p data-path-to-node=\"48\">Therefore, we invite you to contact our engineering support team today with your coil technical drawings to receive a free plant layout consultation, process analysis, and customized machinery proposal!<\/p><\/div><\/div>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-89dc3c3 elementor-widget elementor-widget-spacer\" data-id=\"89dc3c3\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3572c438 elementor-widget elementor-widget-jkit_social_share\" data-id=\"3572c438\" data-element_type=\"widget\" data-widget_type=\"jkit_social_share.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div  class=\"jeg-elementor-kit jkit-social-share jeg_module__4_6ad1a8efda176\" ><ul class=\"social-share-list\"><li class=\"elementor-repeater-item-e698233\" data-social=\"facebook\">\n\t\t\t\t<a href=\"#\" class=\"facebook social-icon\" aria-label=\"social-share\"><span class=\"icon-position-before\"><svg viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M504 256C504 119 393 8 256 8S8 119 8 256c0 123.78 90.69 226.38 209.25 245V327.69h-63V256h63v-54.64c0-62.15 37-96.48 93.67-96.48 27.14 0 55.52 4.84 55.52 4.84v61h-31.28c-30.8 0-40.41 19.12-40.41 38.73V256h68.78l-11 71.69h-57.78V501C413.31 482.38 504 379.78 504 256z\"><\/path><\/svg>Facebook<\/span><\/a>\n\t\t\t<\/li><li class=\"elementor-repeater-item-ded788b\" data-social=\"twitter\">\n\t\t\t\t<a href=\"#\" class=\"twitter social-icon\" aria-label=\"social-share\"><span class=\"icon-position-before\"><svg viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M459.37 151.716c.325 4.548.325 9.097.325 13.645 0 138.72-105.583 298.558-298.558 298.558-59.452 0-114.68-17.219-161.137-47.106 8.447.974 16.568 1.299 25.34 1.299 49.055 0 94.213-16.568 130.274-44.832-46.132-.975-84.792-31.188-98.112-72.772 6.498.974 12.995 1.624 19.818 1.624 9.421 0 18.843-1.3 27.614-3.573-48.081-9.747-84.143-51.98-84.143-102.985v-1.299c13.969 7.797 30.214 12.67 47.431 13.319-28.264-18.843-46.781-51.005-46.781-87.391 0-19.492 5.197-37.36 14.294-52.954 51.655 63.675 129.3 105.258 216.365 109.807-1.624-7.797-2.599-15.918-2.599-24.04 0-57.828 46.782-104.934 104.934-104.934 30.213 0 57.502 12.67 76.67 33.137 23.715-4.548 46.456-13.32 66.599-25.34-7.798 24.366-24.366 44.833-46.132 57.827 21.117-2.273 41.584-8.122 60.426-16.243-14.292 20.791-32.161 39.308-52.628 54.253z\"><\/path><\/svg>Twitter<\/span><\/a>\n\t\t\t<\/li><li class=\"elementor-repeater-item-1ad4b04\" data-social=\"linkedin\">\n\t\t\t\t<a href=\"#\" class=\"linkedin social-icon\" aria-label=\"social-share\"><span class=\"icon-position-before\"><svg viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M416 32H31.9C14.3 32 0 46.5 0 64.3v383.4C0 465.5 14.3 480 31.9 480H416c17.6 0 32-14.5 32-32.3V64.3c0-17.8-14.4-32.3-32-32.3zM135.4 416H69V202.2h66.5V416zm-33.2-243c-21.3 0-38.5-17.3-38.5-38.5S80.9 96 102.2 96c21.2 0 38.5 17.3 38.5 38.5 0 21.3-17.2 38.5-38.5 38.5zm282.1 243h-66.4V312c0-24.8-.5-56.7-34.5-56.7-34.6 0-39.9 27-39.9 54.9V416h-66.4V202.2h63.7v29.2h.9c8.9-16.8 30.6-34.5 62.9-34.5 67.2 0 79.7 44.3 79.7 101.9V416z\"><\/path><\/svg>LinkedIn<\/span><\/a>\n\t\t\t<\/li><li class=\"elementor-repeater-item-0b15a01\" data-social=\"whatsapp\">\n\t\t\t\t<a href=\"#\" class=\"whatsapp social-icon\" aria-label=\"social-share\"><span class=\"icon-position-before\"><svg viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M380.9 97.1C339 55.1 283.2 32 223.9 32c-122.4 0-222 99.6-222 222 0 39.1 10.2 77.3 29.6 111L0 480l117.7-30.9c32.4 17.7 68.9 27 106.1 27h.1c122.3 0 224.1-99.6 224.1-222 0-59.3-25.2-115-67.1-157zm-157 341.6c-33.2 0-65.7-8.9-94-25.7l-6.7-4-69.8 18.3L72 359.2l-4.4-7c-18.5-29.4-28.2-63.3-28.2-98.2 0-101.7 82.8-184.5 184.6-184.5 49.3 0 95.6 19.2 130.4 54.1 34.8 34.9 56.2 81.2 56.1 130.5 0 101.8-84.9 184.6-186.6 184.6zm101.2-138.2c-5.5-2.8-32.8-16.2-37.9-18-5.1-1.9-8.8-2.8-12.5 2.8-3.7 5.6-14.3 18-17.6 21.8-3.2 3.7-6.5 4.2-12 1.4-32.6-16.3-54-29.1-75.5-66-5.7-9.8 5.7-9.1 16.3-30.3 1.8-3.7.9-6.9-.5-9.7-1.4-2.8-12.5-30.1-17.1-41.2-4.5-10.8-9.1-9.3-12.5-9.5-3.2-.2-6.9-.2-10.6-.2-3.7 0-9.7 1.4-14.8 6.9-5.1 5.6-19.4 19-19.4 46.3 0 27.3 19.9 53.7 22.6 57.4 2.8 3.7 39.1 59.7 94.8 83.8 35.2 15.2 49 16.5 66.6 13.9 10.7-1.6 32.8-13.4 37.4-26.4 4.6-13 4.6-24.1 3.2-26.4-1.3-2.5-5-3.9-10.5-6.6z\"><\/path><\/svg>Whatsapp<\/span><\/a>\n\t\t\t<\/li><li class=\"elementor-repeater-item-996fa00\" data-social=\"telegram\">\n\t\t\t\t<a href=\"#\" class=\"telegram social-icon\" aria-label=\"social-share\"><span class=\"icon-position-before\"><svg viewbox=\"0 0 496 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M248 8C111 8 0 119 0 256s111 248 248 248 248-111 248-248S385 8 248 8zm121.8 169.9l-40.7 191.8c-3 13.6-11.1 16.9-22.4 10.5l-62-45.7-29.9 28.8c-3.3 3.3-6.1 6.1-12.5 6.1l4.4-63.1 114.9-103.8c5-4.4-1.1-6.9-7.7-2.5l-142 89.4-61.2-19.1c-13.3-4.2-13.6-13.3 2.8-19.7l239.1-92.2c11.1-4 20.8 2.7 17.2 19.5z\"><\/path><\/svg>Telegram<\/span><\/a>\n\t\t\t<\/li><\/ul><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3fc1548c elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"3fc1548c\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-27a36b26\" data-id=\"27a36b26\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-7c92068d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7c92068d\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-no\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-7b9267c2\" data-id=\"7b9267c2\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1610aeec elementor-widget elementor-widget-heading\" data-id=\"1610aeec\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h4 class=\"elementor-heading-title elementor-size-default\">Recent News<\/h4>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-5d5e3a22 elementor-widget__width-initial elementor-widget elementor-widget-jkit_post_block\" data-id=\"5d5e3a22\" data-element_type=\"widget\" data-widget_type=\"jkit_post_block.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<div  class=\"jeg-elementor-kit jkit-postblock postblock-type-1 jkit-pagination-disable post-element jeg_module__5_6ad1a8f0025fa\"  data-id=\"jeg_module__5_6ad1a8f0025fa\" data-settings=\"{&quot;post_type&quot;:&quot;post&quot;,&quot;number_post&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:9,&quot;sizes&quot;:[]},&quot;post_offset&quot;:0,&quot;unique_content&quot;:&quot;disable&quot;,&quot;include_post&quot;:&quot;&quot;,&quot;exclude_post&quot;:&quot;&quot;,&quot;include_category&quot;:&quot;&quot;,&quot;exclude_category&quot;:&quot;&quot;,&quot;include_author&quot;:&quot;&quot;,&quot;include_tag&quot;:&quot;&quot;,&quot;exclude_tag&quot;:&quot;&quot;,&quot;sort_by&quot;:&quot;latest&quot;,&quot;pagination_mode&quot;:&quot;disable&quot;,&quot;pagination_loadmore_text&quot;:&quot;Load More&quot;,&quot;pagination_loading_text&quot;:&quot;Loading...&quot;,&quot;pagination_number_post&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:3,&quot;sizes&quot;:[]},&quot;pagination_scroll_limit&quot;:0,&quot;pagination_icon&quot;:{&quot;value&quot;:&quot;&quot;,&quot;library&quot;:&quot;&quot;},&quot;pagination_icon_position&quot;:&quot;before&quot;,&quot;st_category_position&quot;:&quot;center&quot;,&quot;sg_content_postblock_type&quot;:&quot;type-1&quot;,&quot;sg_content_element_order&quot;:&quot;title,meta,excerpt,read&quot;,&quot;sg_content_breakpoint&quot;:&quot;tablet&quot;,&quot;sg_content_title_html_tag&quot;:&quot;h3&quot;,&quot;sg_content_category_enable&quot;:&quot;&quot;,&quot;sg_content_excerpt_enable&quot;:&quot;&quot;,&quot;sg_content_excerpt_length&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:15,&quot;sizes&quot;:[]},&quot;sg_content_excerpt_more&quot;:&quot;...&quot;,&quot;sg_content_readmore_enable&quot;:&quot;&quot;,&quot;sg_content_readmore_icon&quot;:{&quot;value&quot;:&quot;fas fa-arrow-right&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;sg_content_readmore_icon_position&quot;:&quot;after&quot;,&quot;sg_content_readmore_text&quot;:&quot;Read More&quot;,&quot;sg_content_comment_enable&quot;:&quot;&quot;,&quot;sg_content_comment_icon&quot;:{&quot;value&quot;:&quot;fas fa-comment&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;sg_content_comment_icon_position&quot;:&quot;before&quot;,&quot;sg_content_meta_enable&quot;:&quot;yes&quot;,&quot;sg_content_meta_author_enable&quot;:&quot;&quot;,&quot;sg_content_meta_author_by_text&quot;:&quot;by&quot;,&quot;sg_content_meta_author_icon&quot;:{&quot;value&quot;:&quot;fas fa-user&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;sg_content_meta_author_icon_position&quot;:&quot;before&quot;,&quot;sg_content_meta_date_enable&quot;:&quot;yes&quot;,&quot;sg_content_meta_date_type&quot;:&quot;published&quot;,&quot;sg_content_meta_date_format&quot;:&quot;default&quot;,&quot;sg_content_meta_date_format_custom&quot;:&quot;F j, Y&quot;,&quot;sg_content_meta_date_icon&quot;:{&quot;value&quot;:&quot;fas fa-clock&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;sg_content_meta_date_icon_position&quot;:&quot;before&quot;,&quot;sg_content_image_size_imagesize_size&quot;:&quot;full&quot;,&quot;paged&quot;:1,&quot;class&quot;:&quot;jkit_post_block&quot;}\"><div class=\"jkit-block-container\"><div class=\"jkit-posts jkit-ajax-flag\">\n            <article class=\"jkit-post post-3387 post type-post status-publish format-standard has-post-thumbnail hentry category-blog category-fin-die\">\n                    <div class=\"jkit-thumb\"><a aria-label=\"Progressive Fin Die Selection and Engineering Guide for Coil Makers\" href=\"https:\/\/sinoak.ru\/en\/progressive-fin-die-selection-guide\/\"><div class=\"thumbnail-container \">\n            <img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1441\" src=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240714_155733-scaled.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240714_155733-scaled.jpg 2560w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240714_155733-300x169.jpg 300w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240714_155733-1024x577.jpg 1024w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240714_155733-768x432.jpg 768w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240714_155733-1536x865.jpg 1536w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240714_155733-2048x1153.jpg 2048w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240714_155733-18x10.jpg 18w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/>\n        <\/div><\/a><\/div>\n                    <div class=\"jkit-postblock-content\"><h3 class=\"jkit-post-title\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/sinoak.ru\/en\/progressive-fin-die-selection-guide\/\">Progressive Fin Die Selection and Engineering Guide for Coil Makers<\/a>\n\t\t\t\t\t\t<\/h3><div class=\"jkit-post-meta\"><div class=\"jkit-meta-date icon-position-before\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-clock\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256,8C119,8,8,119,8,256S119,504,256,504,504,393,504,256,393,8,256,8Zm92.49,313h0l-20,25a16,16,0,0,1-22.49,2.5h0l-67-49.72a40,40,0,0,1-15-31.23V112a16,16,0,0,1,16-16h32a16,16,0,0,1,16,16V256l58,42.5A16,16,0,0,1,348.49,321Z\"><\/path><\/svg>2026-10-16<\/div><\/div><div class=\"jkit-post-meta-bottom\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div><\/div>\n                <\/article><article class=\"jkit-post post-3362 post type-post status-publish format-standard has-post-thumbnail hentry category-blog category-fin-die\">\n                    <div class=\"jkit-thumb\"><a aria-label=\"Complete Selection Guide for Vertical Tube Expander Machines in HVAC Coil Manufacturing\" href=\"https:\/\/sinoak.ru\/en\/complete-vertical-tube-expander-selection-guide\/\"><div class=\"thumbnail-container \">\n            <img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1441\" src=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-scaled.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-scaled.jpg 2560w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-300x169.jpg 300w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-1024x577.jpg 1024w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-768x432.jpg 768w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-1536x865.jpg 1536w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-2048x1153.jpg 2048w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-18x10.jpg 18w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/>\n        <\/div><\/a><\/div>\n                    <div class=\"jkit-postblock-content\"><h3 class=\"jkit-post-title\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/sinoak.ru\/en\/complete-vertical-tube-expander-selection-guide\/\">Complete Selection Guide for Vertical Tube Expander Machines in HVAC Coil Manufacturing<\/a>\n\t\t\t\t\t\t<\/h3><div class=\"jkit-post-meta\"><div class=\"jkit-meta-date icon-position-before\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-clock\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256,8C119,8,8,119,8,256S119,504,256,504,504,393,504,256,393,8,256,8Zm92.49,313h0l-20,25a16,16,0,0,1-22.49,2.5h0l-67-49.72a40,40,0,0,1-15-31.23V112a16,16,0,0,1,16-16h32a16,16,0,0,1,16,16V256l58,42.5A16,16,0,0,1,348.49,321Z\"><\/path><\/svg>2026-10-15<\/div><\/div><div class=\"jkit-post-meta-bottom\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div><\/div>\n                <\/article><article class=\"jkit-post post-3342 post type-post status-publish format-standard has-post-thumbnail hentry category-blog category-fin-die\">\n                    <div class=\"jkit-thumb\"><a aria-label=\"How to Select the Right High-Speed Fin Press Line for Your Plant\" href=\"https:\/\/sinoak.ru\/en\/how-to-select-high-speed-fin-press-line\/\"><div class=\"thumbnail-container \">\n            <img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1441\" src=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240303_103800-scaled.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240303_103800-scaled.jpg 2560w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240303_103800-300x169.jpg 300w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240303_103800-1024x577.jpg 1024w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240303_103800-768x432.jpg 768w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240303_103800-1536x865.jpg 1536w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240303_103800-2048x1153.jpg 2048w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/05\/20240303_103800-18x10.jpg 18w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/>\n        <\/div><\/a><\/div>\n                    <div class=\"jkit-postblock-content\"><h3 class=\"jkit-post-title\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/sinoak.ru\/en\/how-to-select-high-speed-fin-press-line\/\">How to Select the Right High-Speed Fin Press Line for Your Plant<\/a>\n\t\t\t\t\t\t<\/h3><div class=\"jkit-post-meta\"><div class=\"jkit-meta-date icon-position-before\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-clock\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256,8C119,8,8,119,8,256S119,504,256,504,504,393,504,256,393,8,256,8Zm92.49,313h0l-20,25a16,16,0,0,1-22.49,2.5h0l-67-49.72a40,40,0,0,1-15-31.23V112a16,16,0,0,1,16-16h32a16,16,0,0,1,16,16V256l58,42.5A16,16,0,0,1,348.49,321Z\"><\/path><\/svg>2026-10-14<\/div><\/div><div class=\"jkit-post-meta-bottom\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div><\/div>\n                <\/article><article class=\"jkit-post post-3332 post type-post status-publish format-standard has-post-thumbnail hentry category-blog category-fin-die\">\n                    <div class=\"jkit-thumb\"><a aria-label=\"Header Pipe Punching and Collar Extruding Machine Selection Guide for HVAC Manufacturers\" href=\"https:\/\/sinoak.ru\/en\/header-pipe-punching-and-collar-extruding-machine-selection-guide-for-hvac-manufacturers\/\"><div class=\"thumbnail-container \">\n            <img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1441\" src=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240812_101800-scaled.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240812_101800-scaled.jpg 2560w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240812_101800-300x169.jpg 300w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240812_101800-1024x577.jpg 1024w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240812_101800-768x432.jpg 768w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240812_101800-1536x865.jpg 1536w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240812_101800-2048x1153.jpg 2048w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240812_101800-18x10.jpg 18w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/>\n        <\/div><\/a><\/div>\n                    <div class=\"jkit-postblock-content\"><h3 class=\"jkit-post-title\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/sinoak.ru\/en\/header-pipe-punching-and-collar-extruding-machine-selection-guide-for-hvac-manufacturers\/\">Header Pipe Punching and Collar Extruding Machine Selection Guide for HVAC Manufacturers<\/a>\n\t\t\t\t\t\t<\/h3><div class=\"jkit-post-meta\"><div class=\"jkit-meta-date icon-position-before\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-clock\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256,8C119,8,8,119,8,256S119,504,256,504,504,393,504,256,393,8,256,8Zm92.49,313h0l-20,25a16,16,0,0,1-22.49,2.5h0l-67-49.72a40,40,0,0,1-15-31.23V112a16,16,0,0,1,16-16h32a16,16,0,0,1,16,16V256l58,42.5A16,16,0,0,1,348.49,321Z\"><\/path><\/svg>2026-10-12<\/div><\/div><div class=\"jkit-post-meta-bottom\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div><\/div>\n                <\/article><article class=\"jkit-post post-3321 post type-post status-publish format-standard has-post-thumbnail hentry category-blog category-fin-die\">\n                    <div class=\"jkit-thumb\"><a aria-label=\"Automatic Hairpin Bender Selection Guide for HVAC Coil Manufacturers\" href=\"https:\/\/sinoak.ru\/en\/automatic-hairpin-bender-selection-guide\/\"><div class=\"thumbnail-container \">\n            <img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1440\" src=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/IMG_20260418_0944231-scaled.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/IMG_20260418_0944231-scaled.jpg 2560w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/IMG_20260418_0944231-300x169.jpg 300w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/IMG_20260418_0944231-1024x576.jpg 1024w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/IMG_20260418_0944231-768x432.jpg 768w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/IMG_20260418_0944231-1536x864.jpg 1536w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/IMG_20260418_0944231-2048x1152.jpg 2048w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/10\/IMG_20260418_0944231-18x10.jpg 18w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/>\n        <\/div><\/a><\/div>\n                    <div class=\"jkit-postblock-content\"><h3 class=\"jkit-post-title\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/sinoak.ru\/en\/automatic-hairpin-bender-selection-guide\/\">Automatic Hairpin Bender Selection Guide for HVAC Coil Manufacturers<\/a>\n\t\t\t\t\t\t<\/h3><div class=\"jkit-post-meta\"><div class=\"jkit-meta-date icon-position-before\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-clock\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256,8C119,8,8,119,8,256S119,504,256,504,504,393,504,256,393,8,256,8Zm92.49,313h0l-20,25a16,16,0,0,1-22.49,2.5h0l-67-49.72a40,40,0,0,1-15-31.23V112a16,16,0,0,1,16-16h32a16,16,0,0,1,16,16V256l58,42.5A16,16,0,0,1,348.49,321Z\"><\/path><\/svg>2026-10-10<\/div><\/div><div class=\"jkit-post-meta-bottom\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div><\/div>\n                <\/article><article class=\"jkit-post post-3315 post type-post status-publish format-standard has-post-thumbnail hentry category-blog category-fin-die\">\n                    <div class=\"jkit-thumb\"><a aria-label=\"Mechanical vs. Hydraulic Tube Expansion: Engineering Guide\" href=\"https:\/\/sinoak.ru\/en\/mechanical-vs-hydraulic-tube-expansion-guide\/\"><div class=\"thumbnail-container \">\n            <img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1441\" src=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241201_160831-scaled.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241201_160831-scaled.jpg 2560w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241201_160831-300x169.jpg 300w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241201_160831-1024x577.jpg 1024w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241201_160831-768x432.jpg 768w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241201_160831-1536x865.jpg 1536w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241201_160831-2048x1153.jpg 2048w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241201_160831-18x10.jpg 18w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/>\n        <\/div><\/a><\/div>\n                    <div class=\"jkit-postblock-content\"><h3 class=\"jkit-post-title\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/sinoak.ru\/en\/mechanical-vs-hydraulic-tube-expansion-guide\/\">Mechanical vs. Hydraulic Tube Expansion: Engineering Guide<\/a>\n\t\t\t\t\t\t<\/h3><div class=\"jkit-post-meta\"><div class=\"jkit-meta-date icon-position-before\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-clock\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256,8C119,8,8,119,8,256S119,504,256,504,504,393,504,256,393,8,256,8Zm92.49,313h0l-20,25a16,16,0,0,1-22.49,2.5h0l-67-49.72a40,40,0,0,1-15-31.23V112a16,16,0,0,1,16-16h32a16,16,0,0,1,16,16V256l58,42.5A16,16,0,0,1,348.49,321Z\"><\/path><\/svg>2026-10-09<\/div><\/div><div class=\"jkit-post-meta-bottom\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div><\/div>\n                <\/article><article class=\"jkit-post post-3307 post type-post status-publish format-standard has-post-thumbnail hentry category-blog category-fin-die\">\n                    <div class=\"jkit-thumb\"><a aria-label=\"Microchannel vs. Fin-and-Tube Heat Exchangers: Thermodynamic Trade-offs and Engineering Selection Criteria\" href=\"https:\/\/sinoak.ru\/en\/microchannel-vs-fin-and-tube-heat-exchangers-engineering-guide\/\"><div class=\"thumbnail-container \">\n            <img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1441\" src=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/09\/20240708_152546-scaled.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/09\/20240708_152546-scaled.jpg 2560w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/09\/20240708_152546-300x169.jpg 300w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/09\/20240708_152546-1024x577.jpg 1024w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/09\/20240708_152546-768x432.jpg 768w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/09\/20240708_152546-1536x865.jpg 1536w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/09\/20240708_152546-2048x1153.jpg 2048w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/09\/20240708_152546-18x10.jpg 18w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/>\n        <\/div><\/a><\/div>\n                    <div class=\"jkit-postblock-content\"><h3 class=\"jkit-post-title\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/sinoak.ru\/en\/microchannel-vs-fin-and-tube-heat-exchangers-engineering-guide\/\">Microchannel vs. Fin-and-Tube Heat Exchangers: Thermodynamic Trade-offs and Engineering Selection Criteria<\/a>\n\t\t\t\t\t\t<\/h3><div class=\"jkit-post-meta\"><div class=\"jkit-meta-date icon-position-before\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-clock\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256,8C119,8,8,119,8,256S119,504,256,504,504,393,504,256,393,8,256,8Zm92.49,313h0l-20,25a16,16,0,0,1-22.49,2.5h0l-67-49.72a40,40,0,0,1-15-31.23V112a16,16,0,0,1,16-16h32a16,16,0,0,1,16,16V256l58,42.5A16,16,0,0,1,348.49,321Z\"><\/path><\/svg>2026-10-08<\/div><\/div><div class=\"jkit-post-meta-bottom\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div><\/div>\n                <\/article><article class=\"jkit-post post-3300 post type-post status-publish format-standard has-post-thumbnail hentry category-blog category-fin-die\">\n                    <div class=\"jkit-thumb\"><a aria-label=\"HVAC Coil Manufacturing Differences by Product and Process\" href=\"https:\/\/sinoak.ru\/en\/hvac-coil-manufacturing\/\"><div class=\"thumbnail-container \">\n            <img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1441\" src=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/IMG_20260505_182141-scaled.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/IMG_20260505_182141-scaled.jpg 2560w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/IMG_20260505_182141-300x169.jpg 300w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/IMG_20260505_182141-1024x576.jpg 1024w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/IMG_20260505_182141-768x432.jpg 768w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/IMG_20260505_182141-1536x864.jpg 1536w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/IMG_20260505_182141-2048x1153.jpg 2048w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/IMG_20260505_182141-18x10.jpg 18w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/>\n        <\/div><\/a><\/div>\n                    <div class=\"jkit-postblock-content\"><h3 class=\"jkit-post-title\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/sinoak.ru\/en\/hvac-coil-manufacturing\/\">HVAC Coil Manufacturing Differences by Product and Process<\/a>\n\t\t\t\t\t\t<\/h3><div class=\"jkit-post-meta\"><div class=\"jkit-meta-date icon-position-before\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-clock\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256,8C119,8,8,119,8,256S119,504,256,504,504,393,504,256,393,8,256,8Zm92.49,313h0l-20,25a16,16,0,0,1-22.49,2.5h0l-67-49.72a40,40,0,0,1-15-31.23V112a16,16,0,0,1,16-16h32a16,16,0,0,1,16,16V256l58,42.5A16,16,0,0,1,348.49,321Z\"><\/path><\/svg>2026-09-24<\/div><\/div><div class=\"jkit-post-meta-bottom\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div><\/div>\n                <\/article><article class=\"jkit-post post-3295 post type-post status-publish format-standard has-post-thumbnail hentry category-blog category-fin-die\">\n                    <div class=\"jkit-thumb\"><a aria-label=\"How to Improve Heat Exchanger Production Efficiency\" href=\"https:\/\/sinoak.ru\/en\/heat-exchanger-production-efficiency\/\"><div class=\"thumbnail-container \">\n            <img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1441\" src=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240709_140546-scaled.jpg\" class=\"attachment-full size-full wp-post-image\" alt=\"\" loading=\"lazy\" srcset=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240709_140546-scaled.jpg 2560w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240709_140546-300x169.jpg 300w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240709_140546-1024x577.jpg 1024w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240709_140546-768x432.jpg 768w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240709_140546-1536x865.jpg 1536w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240709_140546-2048x1153.jpg 2048w, https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/08\/20240709_140546-18x10.jpg 18w\" sizes=\"auto, (max-width: 2560px) 100vw, 2560px\" \/>\n        <\/div><\/a><\/div>\n                    <div class=\"jkit-postblock-content\"><h3 class=\"jkit-post-title\">\n\t\t\t\t\t\t\t<a href=\"https:\/\/sinoak.ru\/en\/heat-exchanger-production-efficiency\/\">How to Improve Heat Exchanger Production Efficiency<\/a>\n\t\t\t\t\t\t<\/h3><div class=\"jkit-post-meta\"><div class=\"jkit-meta-date icon-position-before\"><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-clock\" viewBox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M256,8C119,8,8,119,8,256S119,504,256,504,504,393,504,256,393,8,256,8Zm92.49,313h0l-20,25a16,16,0,0,1-22.49,2.5h0l-67-49.72a40,40,0,0,1-15-31.23V112a16,16,0,0,1,16-16h32a16,16,0,0,1,16,16V256l58,42.5A16,16,0,0,1,348.49,321Z\"><\/path><\/svg>2026-09-23<\/div><\/div><div class=\"jkit-post-meta-bottom\">\n\t\t\t\t\t\t\t\n\t\t\t\t\t\t<\/div><\/div>\n                <\/article>\n        <\/div><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Complete Selection Guide for Vertical Tube Expander Machines in HVAC Coil Manufacturing Steve 2026-10-15 Complete Selection Guide for Vertical Tube Expander Machines in HVAC Coil Manufacturing In finned tube heat exchanger manufacturing, achieving maximum thermal transfer efficiency relies heavily on the quality of mechanical bonding between the tubes and fin collars. Specifically, after hairpin tubes [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":2691,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,3],"tags":[],"class_list":["post-3362","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-fin-die"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v23.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Complete Vertical Tube Expander Selection Guide | SINOAK<\/title>\n<meta name=\"description\" content=\"Learn how to select a vertical tube expander machine for HVAC heat exchangers. Compare hydraulic vs servo drives, quality defect controls.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sinoak.ru\/en\/complete-vertical-tube-expander-selection-guide\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fin Press Line Manufacturer | High-Quality Heat Exchanger Solutions\" \/>\n<meta property=\"og:description\" content=\"SINAOK - Trusted Fin Press Line Manufacturer. Precision-engineered solutions for HVAC, refrigeration, and automotive industries. Contact us today!\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sinoak.ru\/en\/complete-vertical-tube-expander-selection-guide\/\" \/>\n<meta property=\"og:site_name\" content=\"SINOAK\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/profile.php?id=100077012231019\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-15T01:51:17+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-15T05:49:12+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sinoak.ru\/wp-content\/uploads\/2024\/06\/C-type-fin-press-line.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"author\" content=\"Steve\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Complete Selection Guide for Vertical Tube Expander Machines in HVAC Coil Manufacturing\" \/>\n<meta name=\"twitter:creator\" content=\"@sinaok86\" \/>\n<meta name=\"twitter:site\" content=\"@sinaok86\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Steve\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"9 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/\",\"url\":\"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/\",\"name\":\"Complete Vertical Tube Expander Selection Guide | SINOAK\",\"isPartOf\":{\"@id\":\"https:\/\/sinoak.ru\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-scaled.jpg\",\"datePublished\":\"2026-10-15T01:51:17+00:00\",\"dateModified\":\"2026-10-15T05:49:12+00:00\",\"author\":{\"@id\":\"https:\/\/sinoak.ru\/#\/schema\/person\/14c0dcb662fdace2d6e570c8c94ce090\"},\"description\":\"Learn how to select a vertical tube expander machine for HVAC heat exchangers. Compare hydraulic vs servo drives, quality defect controls.\",\"breadcrumb\":{\"@id\":\"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/#primaryimage\",\"url\":\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-scaled.jpg\",\"contentUrl\":\"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-scaled.jpg\",\"width\":2560,\"height\":1441},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/sinoak.ru\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Complete Selection Guide for Vertical Tube Expander Machines in HVAC Coil Manufacturing\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/sinoak.ru\/#website\",\"url\":\"https:\/\/sinoak.ru\/\",\"name\":\"SINOAK fin press line\",\"description\":\"Fin Press Line, Fin Die, Heat Exchanger Production Equipment\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/sinoak.ru\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/sinoak.ru\/#\/schema\/person\/14c0dcb662fdace2d6e570c8c94ce090\",\"name\":\"Steve\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/sinoak.ru\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/a5e889208e7e581d0eab7310604c7b3cd9f6aeda9157acfe8b9073947e1e77f1?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/a5e889208e7e581d0eab7310604c7b3cd9f6aeda9157acfe8b9073947e1e77f1?s=96&d=mm&r=g\",\"caption\":\"Steve\"}}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Complete Vertical Tube Expander Selection Guide | SINOAK","description":"Learn how to select a vertical tube expander machine for HVAC heat exchangers. Compare hydraulic vs servo drives, quality defect controls.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/sinoak.ru\/en\/complete-vertical-tube-expander-selection-guide\/","og_locale":"en_US","og_type":"article","og_title":"Fin Press Line Manufacturer | High-Quality Heat Exchanger Solutions","og_description":"SINAOK - Trusted Fin Press Line Manufacturer. Precision-engineered solutions for HVAC, refrigeration, and automotive industries. Contact us today!","og_url":"https:\/\/sinoak.ru\/en\/complete-vertical-tube-expander-selection-guide\/","og_site_name":"SINOAK","article_publisher":"https:\/\/www.facebook.com\/profile.php?id=100077012231019","article_published_time":"2026-10-15T01:51:17+00:00","article_modified_time":"2026-10-15T05:49:12+00:00","og_image":[{"width":800,"height":800,"url":"https:\/\/sinoak.ru\/wp-content\/uploads\/2024\/06\/C-type-fin-press-line.webp","type":"image\/webp"}],"author":"Steve","twitter_card":"summary_large_image","twitter_title":"Complete Selection Guide for Vertical Tube Expander Machines in HVAC Coil Manufacturing","twitter_creator":"@sinaok86","twitter_site":"@sinaok86","twitter_misc":{"Written by":"Steve","Est. reading time":"9 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/","url":"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/","name":"Complete Vertical Tube Expander Selection Guide | SINOAK","isPartOf":{"@id":"https:\/\/sinoak.ru\/#website"},"primaryImageOfPage":{"@id":"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/#primaryimage"},"image":{"@id":"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/#primaryimage"},"thumbnailUrl":"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-scaled.jpg","datePublished":"2026-10-15T01:51:17+00:00","dateModified":"2026-10-15T05:49:12+00:00","author":{"@id":"https:\/\/sinoak.ru\/#\/schema\/person\/14c0dcb662fdace2d6e570c8c94ce090"},"description":"Learn how to select a vertical tube expander machine for HVAC heat exchangers. Compare hydraulic vs servo drives, quality defect controls.","breadcrumb":{"@id":"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/#primaryimage","url":"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-scaled.jpg","contentUrl":"https:\/\/sinoak.ru\/wp-content\/uploads\/2026\/06\/20241219_170557-scaled.jpg","width":2560,"height":1441},{"@type":"BreadcrumbList","@id":"https:\/\/sinoak.ru\/complete-vertical-tube-expander-selection-guide\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/sinoak.ru\/en\/"},{"@type":"ListItem","position":2,"name":"Complete Selection Guide for Vertical Tube Expander Machines in HVAC Coil Manufacturing"}]},{"@type":"WebSite","@id":"https:\/\/sinoak.ru\/#website","url":"https:\/\/sinoak.ru\/","name":"SINOAK fin press line","description":"Fin Press Line, Fin Die, Heat Exchanger Production Equipment","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/sinoak.ru\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/sinoak.ru\/#\/schema\/person\/14c0dcb662fdace2d6e570c8c94ce090","name":"Steve","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/sinoak.ru\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/a5e889208e7e581d0eab7310604c7b3cd9f6aeda9157acfe8b9073947e1e77f1?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/a5e889208e7e581d0eab7310604c7b3cd9f6aeda9157acfe8b9073947e1e77f1?s=96&d=mm&r=g","caption":"Steve"}}]}},"_links":{"self":[{"href":"https:\/\/sinoak.ru\/en\/wp-json\/wp\/v2\/posts\/3362","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinoak.ru\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sinoak.ru\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sinoak.ru\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/sinoak.ru\/en\/wp-json\/wp\/v2\/comments?post=3362"}],"version-history":[{"count":10,"href":"https:\/\/sinoak.ru\/en\/wp-json\/wp\/v2\/posts\/3362\/revisions"}],"predecessor-version":[{"id":3385,"href":"https:\/\/sinoak.ru\/en\/wp-json\/wp\/v2\/posts\/3362\/revisions\/3385"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoak.ru\/en\/wp-json\/wp\/v2\/media\/2691"}],"wp:attachment":[{"href":"https:\/\/sinoak.ru\/en\/wp-json\/wp\/v2\/media?parent=3362"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoak.ru\/en\/wp-json\/wp\/v2\/categories?post=3362"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoak.ru\/en\/wp-json\/wp\/v2\/tags?post=3362"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}