{"id":13522,"date":"2024-04-09T07:52:58","date_gmt":"2024-04-09T07:52:58","guid":{"rendered":"https:\/\/tuohaihardware.com\/?page_id=13522"},"modified":"2026-09-26T08:23:00","modified_gmt":"2026-09-26T08:23:00","slug":"%d0%be%d0%b1%d0%be%d1%80%d1%83%d0%b4%d0%be%d0%b2%d0%b0%d0%bd%d0%b8%d0%b5-%d0%b4%d0%bb%d1%8f-%d0%bf%d1%80%d0%be%d0%b8%d0%b7%d0%b2%d0%be%d0%b4%d1%81%d1%82%d0%b2%d0%b0-%d1%86%d0%b5%d0%bf%d0%b5%d0%b9","status":"publish","type":"page","link":"https:\/\/tuohaihardware.com\/ru\/chain-manufacturing-equipment\/","title":{"rendered":"\u041e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435"},"content":{"rendered":"<div class=\"tuohai-equipment-page\">\n<style data-tuohai-equipment-styles>\n    .tuohai-equipment-page {--navy:#0b2038;--blue:#1460a8;--ink:#172433;--muted:#66727f;--paper:#f5f4ef;--line:#d9dde0;--white:#fff;--max:1180px}\n    .tuohai-equipment-page * {box-sizing:border-box}\n    .tuohai-equipment-page 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{min-width:0;margin:0;background:var(--paper)}\n    .tuohai-equipment-page .engineering-visual picture {display:block}\n    .tuohai-equipment-page .engineering-visual img {width:100%;height:auto;aspect-ratio:4\/3;object-fit:contain;background:var(--paper)}\n    .tuohai-equipment-page .engineering-visual figcaption {padding:11px 15px;background:var(--navy);color:#fff;font-size:10px;font-weight:800;letter-spacing:.13em;text-transform:uppercase}\n    .tuohai-equipment-page .engineering-copy>p:not(.eyebrow) {margin:0 0 14px;color:var(--muted)}\n    .tuohai-equipment-page .engineering-list {margin-top:28px;border-top:1px solid var(--line)}\n    .tuohai-equipment-page .engineering-list div {display:grid;grid-template-columns:52px 1fr;gap:12px;padding:15px 0;border-bottom:1px solid var(--line)}\n    .tuohai-equipment-page .engineering-list b {color:var(--blue);font-size:11px;letter-spacing:.14em}\n    .tuohai-equipment-page .engineering-list span {font-weight:750}\n    .tuohai-equipment-page .engineering-list+.button {margin-top:26px}\n    @media(max-width:850px){\n    .tuohai-equipment-page .engineering {grid-template-columns:1fr;gap:30px}\n    .tuohai-equipment-page .engineering-visuals {grid-column:auto;grid-template-columns:1fr 1fr}\n    }\n    @media(max-width:600px){\n    .tuohai-equipment-page .engineering-heading h2 {font-size:34px}\n    .tuohai-equipment-page .engineering-visuals {grid-template-columns:1fr}\n    }\n    .tuohai-equipment-page {\n      box-sizing: border-box;\n      position: relative;\n      width: 100vw;\n      max-width: 100vw;\n      margin-left: calc(50% - 50vw);\n      margin-right: calc(50% - 50vw);\n      overflow-x: hidden;\n      isolation: isolate;\n    }\n  <\/style>\n<section class=\"hero\">\n<div class=\"hero-overlay\"><\/div>\n<div class=\"hero-content\">\n<p class=\"eyebrow\">Manufacturing capability<\/p>\n<h1>Equipment Built Around the Product You Need<\/h1>\n<p>From wire preparation to forming, welding, and inspection, our equipment supports standard chains, springs, wire forms, and custom metal parts.<\/p>\n<div class=\"hero-actions\"><a href=\"#contactPopUpForm\" class=\"button button-light fancybox-inline inquiry-trigger\" data-inquiry-context=\"Drawing discussion\" aria-haspopup=\"dialog\">Discuss Your Drawing<\/a><a href=\"#equipment\" class=\"text-link section-jump\">Explore the Equipment <span aria-hidden=\"true\">\u2193<\/span><\/a><\/div>\n<\/div>\n<\/section>\n<section class=\"intro section\">\n<div>\n<p class=\"eyebrow dark\">Equipment with a clear purpose<\/p>\n<h2>A connected process, not a list of machines<\/h2>\n<\/div>\n<div class=\"intro-copy\">\n<p>Equipment matters when it helps control the variables that affect your order. Tuohai uses wire processing, forming, welding, and inspection equipment to support link dimensions, repeatability, and order-specific checks. Some machines have been improved around actual production needs.<\/p>\n<p><a href=\"#contactPopUpForm\" class=\"button button-outline fancybox-inline inquiry-trigger\" data-inquiry-context=\"Connected production process\" aria-haspopup=\"dialog\">Discuss Your Product<\/a><\/div>\n<\/section>\n<section class=\"process-strip\" aria-label=\"Production process\">\n<div><b>01<\/b><span>Prepare wire<\/span><\/div>\n<div><b>02<\/b><span>Form parts<\/span><\/div>\n<div><b>03<\/b><span>Join &#038; finish<\/span><\/div>\n<div><b>04<\/b><span>Inspect output<\/span><\/div>\n<p><a href=\"#contactPopUpForm\" class=\"process-cta fancybox-inline inquiry-trigger\" data-inquiry-context=\"Production process route\" aria-haspopup=\"dialog\">Plan Your Process Route <span aria-hidden=\"true\">\u2192<\/span><\/a><\/section>\n<section id=\"equipment\" class=\"section equipment-section\">\n<div class=\"section-heading\">\n<p class=\"eyebrow dark\">Complete equipment overview<\/p>\n<h2>Explore our equipment by production stage<\/h2>\n<p>Use the tabs to see all 18 equipment items currently represented on this page. The equipment used for an order depends on the product, material, dimensions, process route, and agreed inspection requirements.<\/p>\n<\/div>\n<div class=\"equipment-tabs\" role=\"tablist\" aria-label=\"Equipment categories\"><button id=\"tab-forming\" role=\"tab\" aria-selected=\"true\" aria-controls=\"panel-forming\" tabindex=\"0\"><span>01<\/span>Forming &amp; Wire<\/button><button id=\"tab-secondary\" role=\"tab\" aria-selected=\"false\" aria-controls=\"panel-secondary\" tabindex=\"-1\"><span>02<\/span>Finishing &amp; Packing<\/button><button id=\"tab-welding\" role=\"tab\" aria-selected=\"false\" aria-controls=\"panel-welding\" tabindex=\"-1\"><span>03<\/span>Welding<\/button><button id=\"tab-testing\" role=\"tab\" aria-selected=\"false\" aria-controls=\"panel-testing\" tabindex=\"-1\"><span>04<\/span>Testing &amp; Inspection<\/button><\/div>\n<div id=\"panel-forming\" class=\"equipment-panel\" role=\"tabpanel\" aria-labelledby=\"tab-forming\">\n<div class=\"panel-intro\">\n<h3>Forming &amp; wire preparation<\/h3>\n<div>\n<p>Equipment in this group prepares wire and forms repeatable chain links, springs, and wire parts. Tooling and settings must be matched to the drawing or sample.<\/p>\n<p><a href=\"#contactPopUpForm\" class=\"button button-outline panel-cta fancybox-inline inquiry-trigger\" data-inquiry-context=\"Forming and wire preparation\" aria-haspopup=\"dialog\">Discuss Your Forming Requirement<\/a><\/div>\n<\/div>\n<div class=\"equipment-gallery\">\n<div class=\"gallery-stage\">\n<div class=\"gallery-meta\"><span class=\"gallery-index\">1 \/ 5<\/span><span>Forming &amp; Wire<\/span><\/div>\n<div class=\"gallery-image-wrap\"><img decoding=\"async\" class=\"gallery-main\" src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/cnc-wire-forming-equipment-tuohai-2026.jpg\" alt=\"Recent CNC wire forming equipment in the Tuohai factory\" loading=\"lazy\" width=\"1200\" height=\"900\"><\/div>\n<div class=\"gallery-caption\" aria-live=\"polite\"><span>Selected equipment<\/span><\/p>\n<h3>CNC Wire Forming Equipment<\/h3>\n<\/div>\n<\/div>\n<div class=\"gallery-thumbs\" aria-label=\"Forming and wire equipment gallery\"><button type=\"button\" class=\"equipment-thumb\" aria-current=\"true\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/cnc-wire-forming-equipment-tuohai-2026.jpg\" data-gallery-alt=\"Recent CNC wire forming equipment in the Tuohai factory\" data-gallery-title=\"CNC Wire Forming Equipment\"><img decoding=\"async\" src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/cnc-wire-forming-equipment-tuohai-2026.jpg\" alt=\"\" loading=\"lazy\" width=\"1200\" height=\"900\"><span><b>01.1<\/b>CNC Wire Forming Equipment<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Chain-Forming-Machine.jpg\" data-gallery-alt=\"Chain forming equipment\" data-gallery-title=\"Chain Forming Equipment\"><img decoding=\"async\" src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Chain-Forming-Machine.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>01.2<\/b>Chain Forming Equipment<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/chain-straightening-equipment-tuohai-2026.jpg\" data-gallery-alt=\"Chain straightening equipment in the Tuohai workshop\" data-gallery-title=\"Chain Straightening Equipment\"><img decoding=\"async\" src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/chain-straightening-equipment-tuohai-2026-thumb.jpg\" alt=\"\" loading=\"lazy\" width=\"480\" height=\"360\"><span><b>01.3<\/b>Chain Straightening Equipment<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Wire-Straightening-Machine.jpg\" data-gallery-alt=\"Wire straightening machine\" data-gallery-title=\"Wire Straightening Machine\"><img decoding=\"async\" src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Wire-Straightening-Machine.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>01.4<\/b>Wire Straightening Machine<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Wire-Drawing-Machine.jpg\" data-gallery-alt=\"Wire drawing machine\" data-gallery-title=\"Wire Drawing Machine\"><img decoding=\"async\" src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Wire-Drawing-Machine.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>01.5<\/b>Wire Drawing Machine<\/span><\/button><\/div>\n<\/div>\n<\/div>\n<div id=\"panel-secondary\" class=\"equipment-panel\" role=\"tabpanel\" aria-labelledby=\"tab-secondary\" hidden>\n<div class=\"panel-intro\">\n<h3>Secondary processing &amp; packing<\/h3>\n<div>\n<p>These machines support finishing, spring end preparation, heat-related processing, surface preparation, and packing where the product route requires them.<\/p>\n<p><a href=\"#contactPopUpForm\" class=\"button button-outline panel-cta fancybox-inline inquiry-trigger\" data-inquiry-context=\"Secondary processing and packing\" aria-haspopup=\"dialog\">Discuss Finishing &amp; Packing<\/a><\/div>\n<\/div>\n<div class=\"equipment-gallery\">\n<div class=\"gallery-stage\">\n<div class=\"gallery-meta\"><span class=\"gallery-index\">1 \/ 5<\/span><span>Finishing &amp; Packing<\/span><\/div>\n<div class=\"gallery-image-wrap\"><img class=\"gallery-main\" data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Polishing-Machine.jpg\" alt=\"Polishing machine\" loading=\"lazy\" width=\"600\" height=\"600\"><\/div>\n<div class=\"gallery-caption\" aria-live=\"polite\"><span>Selected equipment<\/span><\/p>\n<h3>Polishing Machine<\/h3>\n<\/div>\n<\/div>\n<div class=\"gallery-thumbs\" aria-label=\"Finishing and packing equipment gallery\"><button type=\"button\" class=\"equipment-thumb\" aria-current=\"true\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Polishing-Machine.jpg\" data-gallery-alt=\"Polishing machine\" data-gallery-title=\"Polishing Machine\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Polishing-Machine.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>02.1<\/b>Polishing Machine<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Sandblaster-Machine.jpg\" data-gallery-alt=\"Sandblaster machine\" data-gallery-title=\"Sandblaster Machine\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Sandblaster-Machine.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>02.2<\/b>Sandblaster Machine<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Spring-Grinder.jpg\" data-gallery-alt=\"Spring grinder\" data-gallery-title=\"Spring Grinder\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Spring-Grinder.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>02.3<\/b>Spring Grinder<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Annealing-Furnace.jpg\" data-gallery-alt=\"Annealing furnace\" data-gallery-title=\"Annealing Furnace\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Annealing-Furnace.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>02.4<\/b>Annealing Furnace<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Packaging-Machine.jpg\" data-gallery-alt=\"Packaging machine\" data-gallery-title=\"Packaging Machine\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Packaging-Machine.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>02.5<\/b>Packaging Machine<\/span><\/button><\/div>\n<\/div>\n<\/div>\n<div id=\"panel-welding\" class=\"equipment-panel\" role=\"tabpanel\" aria-labelledby=\"tab-welding\" hidden>\n<div class=\"panel-intro\">\n<h3>Welding<\/h3>\n<div>\n<p>The welding method must match the part, material, joint design, and acceptance requirement. Availability on this page does not mean every method applies to every product.<\/p>\n<p><a href=\"#contactPopUpForm\" class=\"button button-outline panel-cta fancybox-inline inquiry-trigger\" data-inquiry-context=\"Welding\" aria-haspopup=\"dialog\">Discuss Your Welding Requirement<\/a><\/div>\n<\/div>\n<div class=\"equipment-gallery\">\n<div class=\"gallery-stage\">\n<div class=\"gallery-meta\"><span class=\"gallery-index\">1 \/ 4<\/span><span>Welding<\/span><\/div>\n<div class=\"gallery-image-wrap\"><img class=\"gallery-main\" data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/chain-welding-equipment-tuohai-2026.jpg\" alt=\"Chain welding equipment operating at Tuohai\" loading=\"lazy\" width=\"1200\" height=\"900\"><\/div>\n<div class=\"gallery-caption\" aria-live=\"polite\"><span>Selected equipment<\/span><\/p>\n<h3>Chain Welding Equipment<\/h3>\n<\/div>\n<\/div>\n<div class=\"gallery-thumbs\" aria-label=\"Welding equipment gallery\"><button type=\"button\" class=\"equipment-thumb\" aria-current=\"true\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/chain-welding-equipment-tuohai-2026.jpg\" data-gallery-alt=\"Chain welding equipment operating at Tuohai\" data-gallery-title=\"Chain Welding Equipment\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/chain-welding-equipment-tuohai-2026.jpg\" alt=\"\" loading=\"lazy\" width=\"1200\" height=\"900\"><span><b>03.1<\/b>Chain Welding Equipment<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Resistance-Welding-Equipment.jpg\" data-gallery-alt=\"Resistance welding equipment\" data-gallery-title=\"Resistance Welding Equipment\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Resistance-Welding-Equipment.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>03.2<\/b>Resistance Welding Equipment<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Argon-Arc-Welding-Equipment.jpg\" data-gallery-alt=\"Argon arc welding equipment\" data-gallery-title=\"Argon Arc Welding Equipment\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Argon-Arc-Welding-Equipment.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>03.3<\/b>Argon Arc Welding Equipment<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/High-Energy-Micro-Arc-Cold-Welder.jpg\" data-gallery-alt=\"High energy micro arc cold welder\" data-gallery-title=\"High Energy Micro Arc Cold Welder\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/High-Energy-Micro-Arc-Cold-Welder.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>03.4<\/b>High Energy Micro Arc Cold Welder<\/span><\/button><\/div>\n<\/div>\n<\/div>\n<div id=\"panel-testing\" class=\"equipment-panel\" role=\"tabpanel\" aria-labelledby=\"tab-testing\" hidden>\n<div class=\"panel-intro\">\n<h3>Testing &amp; inspection<\/h3>\n<div>\n<p>Test method, sample, load, duration, pass criteria, and required documents should be agreed for the exact product. Accelerated salt spray results are not the same as real service life.<\/p>\n<p><a href=\"#contactPopUpForm\" class=\"button button-outline panel-cta fancybox-inline inquiry-trigger\" data-inquiry-context=\"Testing and inspection\" aria-haspopup=\"dialog\">Discuss Your Test Requirement<\/a><\/div>\n<\/div>\n<div class=\"equipment-gallery\">\n<div class=\"gallery-stage\">\n<div class=\"gallery-meta\"><span class=\"gallery-index\">1 \/ 4<\/span><span>Testing &amp; Inspection<\/span><\/div>\n<div class=\"gallery-image-wrap\"><img class=\"gallery-main\" data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/tensile-testing-equipment-tuohai-2026.jpg\" alt=\"Recent Tuohai chain tensile test using tensile testing equipment\" loading=\"lazy\" width=\"1200\" height=\"900\"><\/div>\n<div class=\"gallery-caption\" aria-live=\"polite\"><span>Selected equipment<\/span><\/p>\n<h3>Tensile Testing Machine<\/h3>\n<\/div>\n<\/div>\n<div class=\"gallery-thumbs\" aria-label=\"Testing and inspection equipment gallery\"><button type=\"button\" class=\"equipment-thumb\" aria-current=\"true\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/tensile-testing-equipment-tuohai-2026.jpg\" data-gallery-alt=\"Recent Tuohai chain tensile test using tensile testing equipment\" data-gallery-title=\"Tensile Testing Machine\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/tensile-testing-equipment-tuohai-2026.jpg\" alt=\"\" loading=\"lazy\" width=\"1200\" height=\"900\"><span><b>04.1<\/b>Tensile Testing Machine<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Salt-Spray-Test-Machine.jpg\" data-gallery-alt=\"Salt spray test machine\" data-gallery-title=\"Salt Spray Test Machine\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Salt-Spray-Test-Machine.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>04.2<\/b>Salt Spray Test Machine<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Wire-Form-Shape-Inspection-Plate.jpg\" data-gallery-alt=\"Wire form shape inspection plate\" data-gallery-title=\"Wire Form Shape Inspection Plate\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2024\/04\/Wire-Form-Shape-Inspection-Plate.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>04.3<\/b>Wire Form Shape Inspection Plate<\/span><\/button><button type=\"button\" class=\"equipment-thumb\" data-gallery-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/06\/Spring-Test-Equipment.jpg\" data-gallery-alt=\"Spring test equipment\" data-gallery-title=\"Spring Test Equipment\"><img data-src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/06\/Spring-Test-Equipment.jpg\" alt=\"\" loading=\"lazy\" width=\"600\" height=\"600\"><span><b>04.4<\/b>Spring Test Equipment<small>Added June 2026<\/small><\/span><\/button><\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"engineering section\" aria-labelledby=\"engineering-title\">\n<div class=\"engineering-heading\">\n<p class=\"eyebrow dark\">In-house equipment engineering<\/p>\n<h2 id=\"engineering-title\">We design and build chain production equipment<\/h2>\n<\/div>\n<div class=\"engineering-copy\">\n<p>Our experienced engineering team designs and builds chain production equipment in-house. The drawing shown here is one example of this work.<\/p>\n<p>Our equipment includes chain forming equipment, chain welding equipment, straightening equipment, and wire forming equipment. These machines support the forming, welding, and straightening work required in production.<\/p>\n<div class=\"engineering-list\" aria-label=\"Equipment engineering capabilities\">\n<div><b>01<\/b><span>Chain forming equipment<\/span><\/div>\n<div><b>02<\/b><span>Chain welding equipment<\/span><\/div>\n<div><b>03<\/b><span>Straightening equipment<\/span><\/div>\n<div><b>04<\/b><span>Wire forming equipment<\/span><\/div>\n<\/div>\n<p><a href=\"#contactPopUpForm\" class=\"button button-outline fancybox-inline inquiry-trigger\" data-inquiry-context=\"In-house equipment engineering\" aria-haspopup=\"dialog\">Discuss a Custom Production Need<\/a><\/div>\n<div class=\"engineering-visuals\">\n<figure class=\"engineering-visual\"><picture><source media=\"(max-width: 600px)\" srcset=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/chain-equipment-engineering-drawing-tuohai-2026-thumb.jpg\"><img decoding=\"async\" src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/chain-equipment-engineering-drawing-tuohai-2026.jpg\" alt=\"Hand-drawn chain production equipment design with measuring tools\" loading=\"lazy\" width=\"1200\" height=\"900\"><\/picture><figcaption>Equipment design drawing and measurement<\/figcaption><\/figure>\n<figure class=\"engineering-visual\"><picture><source media=\"(max-width: 600px)\" srcset=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/in-house-equipment-components-tuohai-2026-thumb.jpg\"><img decoding=\"async\" src=\"https:\/\/tuohaihardware.com\/wp-content\/uploads\/2026\/08\/in-house-equipment-components-tuohai-2026.jpg\" alt=\"Machined equipment components in the Tuohai workshop\" loading=\"lazy\" width=\"1200\" height=\"900\"><\/picture><figcaption>Machined equipment components in the workshop<\/figcaption><\/figure>\n<\/div>\n<\/section>\n<section class=\"support section\">\n<div class=\"support-copy\">\n<p class=\"eyebrow\">Supporting processes<\/p>\n<h2>Equipment before and after forming<\/h2>\n<p>Production starts with suitable wire preparation and ends with defined inspection. Additional equipment supports straightening, drawing, cutting, grinding, polishing, heat treatment, blasting, and packaging where the product requires it.<\/p>\n<p><a href=\"#contactPopUpForm\" class=\"button button-light fancybox-inline inquiry-trigger\" data-inquiry-context=\"Supporting processes\" aria-haspopup=\"dialog\">Discuss Finishing &amp; Packaging<\/a><\/div>\n<div class=\"support-list\">\n<div><span>Wire preparation<\/span><\/p>\n<p>Wire drawing and straightening equipment prepare material for stable forming.<\/p>\n<\/div>\n<div><span>Secondary operations<\/span><\/p>\n<p>Cutting, grinding, polishing, blasting, and heat-related processes support different part requirements.<\/p>\n<\/div>\n<div><span>Packaging<\/span><\/p>\n<p>Packaging equipment supports order-specific presentation and handling needs after final inspection.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"scope section\">\n<div>\n<p class=\"eyebrow dark\">Process boundary<\/p>\n<h2>What is handled in-house?<\/h2>\n<p><a href=\"#contactPopUpForm\" class=\"button button-outline fancybox-inline inquiry-trigger\" data-inquiry-context=\"In-house and partner process route\" aria-haspopup=\"dialog\">Confirm Your Process Route<\/a><\/div>\n<div class=\"scope-grid\">\n<article><span>In-house<\/span><\/p>\n<h3>Core manufacturing<\/h3>\n<p>Wire processing, forming, welding, and inspection are completed in the Tuohai factory for applicable products.<\/p>\n<\/article>\n<article><span>Specialist partners<\/span><\/p>\n<h3>Selected surface treatments<\/h3>\n<p>Zinc plating, brass plating, antique finishes, and other treatments may be handled with long-term specialist partners. Confirm the route for your order.<\/p>\n<\/article>\n<\/div>\n<\/section>\n<section class=\"cta\">\n<div>\n<p class=\"eyebrow\">Prepare your RFQ<\/p>\n<h2>Send the details that define the right process<\/h2>\n<\/div>\n<ul>\n<li>Drawing or physical sample<\/li>\n<li>Material and wire size<\/li>\n<li>Dimensions and tolerances<\/li>\n<li>Finish and test needs<\/li>\n<li>Order quantity and packaging<\/li>\n<\/ul>\n<p><a href=\"#contactPopUpForm\" class=\"button button-light fancybox-inline inquiry-trigger\" data-inquiry-context=\"Final RFQ\" aria-haspopup=\"dialog\">Send Your Requirement<\/a><\/section>\n<p>  <script>(() => { const initialiseEquipmentPage = () => { const root = document.querySelector('.tuohai-equipment-page'); if (!root || root.dataset.equipmentInteractive === 'true') return; root.dataset.equipmentInteractive = 'true'; const loadDeferredImages = (container) => { container.querySelectorAll('img[data-src]').forEach((image) => { image.src = image.dataset.src; image.removeAttribute('data-src'); }); }; const tabs = [...root.querySelectorAll('[role=\"tab\"]')]; const activateTab = (nextTab, moveFocus = false) => { tabs.forEach((tab) => { const selected = tab === nextTab; tab.setAttribute('aria-selected', String(selected)); tab.tabIndex = selected ? 0 : -1; const panelId = tab.getAttribute('aria-controls'); const panel = [...root.querySelectorAll('.equipment-panel')].find((item) => item.id === panelId); if (!panel) return; panel.hidden = !selected; if (selected) loadDeferredImages(panel); }); if (window.matchMedia('(max-width: 600px)').matches) { nextTab.scrollIntoView({ block: 'nearest', inline: 'center' }); } if (moveFocus) nextTab.focus(); }; tabs.forEach((tab, index) => { tab.addEventListener('click', () => activateTab(tab)); tab.addEventListener('keydown', (event) => { let nextIndex; if (event.key === 'ArrowRight' || event.key === 'ArrowDown') nextIndex = (index + 1) % tabs.length; if (event.key === 'ArrowLeft' || event.key === 'ArrowUp') nextIndex = (index - 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