{"id":6185,"date":"2026-09-07T00:15:49","date_gmt":"2026-09-06T16:15:49","guid":{"rendered":"https:\/\/en.ntsquare.com\/?post_type=case-study&#038;p=6185"},"modified":"2026-09-07T00:15:51","modified_gmt":"2026-09-06T16:15:51","slug":"block-freezing-delivered-world-wide-since-1986","status":"publish","type":"case-study","link":"https:\/\/en.ntsquare.com\/es\/case-study\/block-freezing-delivered-world-wide-since-1986\/","title":{"rendered":"Block Freezing, Delivered world wide since\u00a01986"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>Square Technology Vertical Plate Freezer for Seafood, Minced Meat &amp; Offal<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Company:<\/strong>&nbsp;Square Technology Group Co., Ltd. (Shanghai Stock Exchange: 603339) <strong>Product:<\/strong>&nbsp;Vertical Plate Freezer (VPF series) <strong>Sector:<\/strong>&nbsp;Seafood processing \u00b7 Offshore fishing \u00b7 Meat &amp; offal processing \u00b7 Pet food <strong>Global footprint:<\/strong>&nbsp;3,000+ clients served \u00b7 5,000+ installations \u00b7 200+ service technicians worldwide<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>About the Company<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Founded in 1986, Square Technology Group Co., Ltd. is China&#8217;s largest industrial freezer manufacturer and a listed company on the Shanghai Stock Exchange. With more than 38 years of continuous focus on cold-chain and quick-freezing equipment, the company has supplied block-freezing, spiral and tunnel freezing systems to leading food producers around the world \u2014 including Tyson Foods, Cargill, Unilever, OSI, CPF, BIMBO, Hormel and Morpol. Square Technology is also the drafting unit of the China National Standard for Plate Freezers (GB\/T 22734-2008).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The Challenge<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For seafood and meat processors, freezing raw material into <strong>regular, dense blocks<\/strong>&nbsp;is a make-or-break operation. Whether aboard a fishing vessel or in a shore-based plant, processors need to:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Freeze fast<\/strong>\u00a0to preserve freshness, texture and yield as product passes through the critical freezing zone;<\/li>\n\n\n\n<li><strong>Produce uniform, dense blocks<\/strong>\u00a0that stack efficiently for cold storage and long-distance transport;<\/li>\n\n\n\n<li><strong>Withstand harsh marine environments<\/strong>\u00a0without corrosion or breakdown;<\/li>\n\n\n\n<li><strong>Commission quickly<\/strong>\u00a0and with minimal on-site work, especially in remote locations or on board ships;<\/li>\n\n\n\n<li><strong>Adapt flexibly<\/strong>\u00a0to different raw materials \u2014 whole sea-caught fish, minced meat, animal organs \u2014 and to customer-specific block sizes and capacities.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/en.ntsquare.com\/wp-content\/uploads\/Square-Vertical-Plate-Freezer.jpg\" alt=\"Square Vertical Plate Freezer\" class=\"wp-image-6188\" srcset=\"https:\/\/en.ntsquare.com\/wp-content\/uploads\/Square-Vertical-Plate-Freezer.jpg 800w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/Square-Vertical-Plate-Freezer-720x450.jpg 720w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/Square-Vertical-Plate-Freezer-768x480.jpg 768w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/Square-Vertical-Plate-Freezer-480x300.jpg 480w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/Square-Vertical-Plate-Freezer-640x400.jpg 640w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/Square-Vertical-Plate-Freezer-18x11.jpg 18w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>The Solution: Square Vertical Plate Freezer<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Square&#8217;s vertical plate freezer is a <strong>direct-contact freezing system<\/strong>&nbsp;built for block freezing of raw materials. Product is placed between vertically mounted evaporator plates; a hydraulic system presses the plates together, compressing the product into a regular, dense block and freezing it rapidly through direct double-sided contact heat exchange \u2014 typically within a few hours.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>How It Works<\/strong><strong><\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Raw material (whole fish, minced meat, offal, etc.) is loaded between the vertical freezing plates.<\/li>\n\n\n\n<li>The hydraulic system closes the plates under controlled pressure, compacting the product into a uniform block.<\/li>\n\n\n\n<li>Refrigerant circulates inside thin channels of the freezing plates, extracting heat directly from both block faces for fast, energy-efficient freezing.<\/li>\n\n\n\n<li>The finished frozen block is discharged, ready for palletizing and cold-chain transport.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/en.ntsquare.com\/wp-content\/uploads\/How-It-Works.jpg\" alt=\"How It Works\" class=\"wp-image-6186\" srcset=\"https:\/\/en.ntsquare.com\/wp-content\/uploads\/How-It-Works.jpg 800w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/How-It-Works-768x480.jpg 768w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/How-It-Works-480x300.jpg 480w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/How-It-Works-640x400.jpg 640w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/How-It-Works-720x450.jpg 720w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/How-It-Works-18x11.jpg 18w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Key Features &amp; Technology<\/strong><strong><\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Caracter\u00edstica<\/strong><strong><\/strong><\/td><td><strong>Benefit<\/strong><strong><\/strong><\/td><\/tr><tr><td><strong>Hot-dip galvanized frame<\/strong><\/td><td>Corrosion-resistant; equally suited to offshore fishing vessels and land-based plants<\/td><\/tr><tr><td><strong>Extruded magnesium-aluminium alloy plates<\/strong><\/td><td>Lightweight, high thermal conductivity, high surface finish, strong corrosion resistance \u2014 superior freezing capacity and hygienic contact surfaces<\/td><\/tr><tr><td><strong>High-quality hydraulic system with deicing copper rings<\/strong>&nbsp;on cylinder-head seals<\/td><td>Long service life, leak-free operation, smooth and reliable plate movement in low-temperature environments<\/td><\/tr><tr><td><strong>Separate liquid supply and suction per plate<\/strong><\/td><td>Uniform refrigerant distribution, higher freezing efficiency, consistent block quality<\/td><\/tr><tr><td><strong>Hot-gas defrosting<\/strong><\/td><td>Fast, automatic defrosting between batches, minimal downtime<\/td><\/tr><tr><td><strong>Standalone refrigeration unit or centralized system<\/strong><\/td><td>Each freezer can be supplied with its own compressor unit, or connected directly to an existing central refrigeration system<\/td><\/tr><tr><td><strong>Fully modular, pre-assembled design<\/strong><\/td><td><strong>No on-site installation required<\/strong>&nbsp;\u2014 connect the hydraulic and refrigerant lines and the unit is ready to run<\/td><\/tr><tr><td><strong>Hydraulic power unit: 1:1 or 1:many<\/strong><\/td><td>One hydraulic station can drive one freezer or be shared across multiple freezers, cutting capital cost on multi-line plants<\/td><\/tr><tr><td><strong>Fully customized design<\/strong><\/td><td>Capacity from 800 to 1,280 kg\/batch; 21\u201333 evaporator plates; block thickness from 50 \/ 75 \/ 90 \/ 100 mm; <strong>frozen block dimensions made to customer requirements<\/strong><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Reference Specification (Model VPF26\u00d7100)<\/strong><strong><\/strong><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td><strong>Par\u00e1metro<\/strong><strong><\/strong><\/td><td><strong>Value<\/strong><strong><\/strong><\/td><\/tr><tr><td>Type<\/td><td>VPF26\u00d7100<\/td><\/tr><tr><td>Layout dimensions (L\u00d7W\u00d7H)<\/td><td>4090 \u00d7 1635 \u00d7 1340 mm<\/td><\/tr><tr><td>Frozen block size (L\u00d7W\u00d7T)<\/td><td>525 \u00d7 525 \u00d7 100 mm<\/td><\/tr><tr><td>Freezing product<\/td><td>20 kg\/piece (whole fish)<\/td><\/tr><tr><td>Output<\/td><td>1,040 kg\/batch<\/td><\/tr><tr><td>Number of plates \/ effective layers<\/td><td>27 plates \/ 26 effective layers<\/td><\/tr><tr><td>Feed \/ outfeed temperature<\/td><td>+15 \u00b0C \/ \u221218 \u00b0C<\/td><\/tr><tr><td>Freezing time<\/td><td>200 min<\/td><\/tr><tr><td>Freezing cycle time<\/td><td>220 min<\/td><\/tr><tr><td>Refrigerant supply mode<\/td><td>Liquid pump recirculation<\/td><\/tr><tr><td>Descongelaci\u00f3n<\/td><td>Hot-gas defrosting<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><em>Note: parameters vary with product type, freezing requirements and customer-specific customization.<\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"500\" src=\"https:\/\/en.ntsquare.com\/wp-content\/uploads\/Block-freezing-of-sea.jpg\" alt=\"Block freezing of sea\" class=\"wp-image-6187\" srcset=\"https:\/\/en.ntsquare.com\/wp-content\/uploads\/Block-freezing-of-sea.jpg 800w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/Block-freezing-of-sea-480x300.jpg 480w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/Block-freezing-of-sea-768x480.jpg 768w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/Block-freezing-of-sea-640x400.jpg 640w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/Block-freezing-of-sea-720x450.jpg 720w, https:\/\/en.ntsquare.com\/wp-content\/uploads\/Block-freezing-of-sea-18x11.jpg 18w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Aplicaciones<\/strong><strong><\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Block freezing of sea-caught fish<\/strong>\u00a0\u2014 whole fish frozen into standardized 20 kg-class blocks aboard trawlers or in shore plants, preserving catch quality and enabling space-efficient transport.<\/li>\n\n\n\n<li><strong>Minced meat (MDM) and animal organs<\/strong>\u00a0\u2014 soft, high-moisture raw materials are compressed and frozen into dense, regular blocks that are easy to store, transport and further process.<\/li>\n\n\n\n<li><strong>Other block products<\/strong>\u00a0\u2014 shrimp, surimi, meat products and pet food, all handled through the same rapid, contact-freezing process.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Results &amp; Customer Value<\/strong><strong><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Product quality:<\/strong>\u00a0Rapid contact freezing preserves texture, moisture and yield far better than slow air-blast methods.<\/li>\n\n\n\n<li><strong>Throughput per footprint:<\/strong>\u00a0Compact vertical design delivers high batch output (up to 1,280 kg\/batch) in minimal floor space \u2014 a decisive advantage on board vessels.<\/li>\n\n\n\n<li><strong>Logistics efficiency:<\/strong>\u00a0Regular, dense, stackable blocks optimize cold-storage space and container utilization.<\/li>\n\n\n\n<li><strong>Energy savings:<\/strong>\u00a0Direct plate contact transfers heat far more efficiently than air-blast freezing.<\/li>\n\n\n\n<li><strong>Rapid time-to-production:<\/strong>\u00a0Modular, pre-assembled units need no on-site installation \u2014 plug in hydraulic and refrigerant lines, and start freezing immediately, even in remote sites or on ships.<\/li>\n\n\n\n<li><strong>Lower capital cost on multi-line plants:<\/strong>\u00a01:many hydraulic configurations and centralized refrigeration reduce equipment spend per line.<\/li>\n\n\n\n<li><strong>Long-term reliability:<\/strong>\u00a0Corrosion-resistant construction, leak-free hydraulics and marine-grade design keep maintenance low even in saltwater environments.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Why Square Technology<\/strong><strong><\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Standard-setter:<\/strong>\u00a0Drafting unit of China&#8217;s National Standard for Plate Freezers (GB\/T 22734-2008).<\/li>\n\n\n\n<li><strong>Proven scale:<\/strong>\u00a03,000+ clients and 5,000+ installations worldwide; long-term partnerships with global food leaders.<\/li>\n\n\n\n<li><strong>Vertically integrated manufacturing:<\/strong>\u00a0Evaporators, PIR panels, structures and pressure vessels are produced in-house under strict quality control.<\/li>\n\n\n\n<li><strong>International compliance:<\/strong>\u00a0CE, ASME, PED, U2, CSA and CRN certifications; 400+ patents.<\/li>\n\n\n\n<li><strong>Global support:<\/strong>\u00a0A service network of 200+ technicians keeps your freezing line running, wherever you are.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Conclusi\u00f3n<\/strong><strong><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Square Technology&#8217;s vertical plate freezer turns block freezing into a simple, fast and flexible operation \u2014 at sea or on land, with a standalone or centralized refrigeration system, and customized to the exact block sizes and capacities your market demands. For processors of sea-caught fish, minced meat and animal organs, it is the reliable foundation of a high-quality, cost-efficient frozen supply chain.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><em>For detailed quotations and customized configurations, contact Square Technology Group Co., Ltd.<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Square Technology Vertical Plate Freezer for Seafood, Minced Meat &amp; Offal Company:&nbsp;Square Technology Group Co., Ltd. (Shanghai Stock Exchange: 603339) Product:&nbsp;Vertical Plate Freezer (VPF series) Sector:&nbsp;Seafood processing \u00b7 Offshore fishing \u00b7 Meat &amp; offal processing \u00b7 Pet food Global footprint:&nbsp;3,000+ clients served \u00b7 5,000+ installations \u00b7 200+ service technicians worldwide About the Company Founded in [&hellip;]<\/p>\n","protected":false},"featured_media":6189,"parent":0,"template":"","news-case":[],"product-category":[],"class_list":["post-6185","case-study","type-case-study","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/en.ntsquare.com\/es\/wp-json\/wp\/v2\/case-study\/6185","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/en.ntsquare.com\/es\/wp-json\/wp\/v2\/case-study"}],"about":[{"href":"https:\/\/en.ntsquare.com\/es\/wp-json\/wp\/v2\/types\/case-study"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/en.ntsquare.com\/es\/wp-json\/wp\/v2\/media\/6189"}],"wp:attachment":[{"href":"https:\/\/en.ntsquare.com\/es\/wp-json\/wp\/v2\/media?parent=6185"}],"wp:term":[{"taxonomy":"news-case","embeddable":true,"href":"https:\/\/en.ntsquare.com\/es\/wp-json\/wp\/v2\/news-case?post=6185"},{"taxonomy":"product-category","embeddable":true,"href":"https:\/\/en.ntsquare.com\/es\/wp-json\/wp\/v2\/product-category?post=6185"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}