{"id":522,"date":"2026-08-03T15:43:17","date_gmt":"2026-08-03T15:43:17","guid":{"rendered":"https:\/\/www.raxdoors.com\/products\/cold-room-doors\/controlled-atmosphere-door\/"},"modified":"2026-09-12T21:27:03","modified_gmt":"2026-09-12T13:27:03","slug":"controlled-atmosphere-door","status":"publish","type":"page","link":"https:\/\/www.raxdoors.com\/es\/cold-room-doors\/controlled-atmosphere-door\/","title":{"rendered":"Puerta de atm\u00f3sfera controlada"},"content":{"rendered":"\n<!-- deliverable: wp-fragment -->\n<!--\n================================================================================\nRAX DOOR TECHNOLOGY \u2014 Controlled Atmosphere (CA) Door (Cold Room Doors)\nBuilt ONLY with existing main.css classes. No embedded stylesheet, no inline styling attributes, no self-made classes.\nOne H1 (pure product name). Figures only from brand_brief.md. U-value \"down to\"\nmarketing wording. Fire rating = per-project capability. No marketplace sources.\n================================================================================\n-->\n\n<div class=\"page-shell\">\n\n  <!-- ===== 01 HERO ========================================================= -->\n  <section class=\"section-dark page-hero section\">\n    <div class=\"container-xl\">\n      <nav class=\"page-breadcrumbs\" aria-label=\"Breadcrumb\">\n        <a href=\"https:\/\/www.raxdoors.com\/\">Home<\/a>\n        <span class=\"page-breadcrumbs__separator\">\/<\/span>\n        <a href=\"https:\/\/www.raxdoors.com\/products\/\">Products<\/a>\n        <span class=\"page-breadcrumbs__separator\">\/<\/span>\n        <a href=\"\/cold-room-doors\/\">Cold Room Doors<\/a>\n        <span class=\"page-breadcrumbs__separator\">\/<\/span>\n        <span>Controlled Atmosphere (CA) Door<\/span>\n      <\/nav>\n\n      <div class=\"page-hero__layout\">\n        <div class=\"page-section__copy\">\n          <span class=\"eyebrow\">Cold Room Doors \u00b7 Manufacturer since 1999<\/span>\n          <h1>Controlled Atmosphere (CA) Door<\/h1>\n          <p class=\"page-summary\">Gas-tight insulated door for controlled atmosphere fruit and produce storage, where the modified gas mix must not leak.<\/p>\n          <p class=\"lead\">A controlled atmosphere room slows ripening by holding a precise low-oxygen, high-carbon-dioxide mix around the fruit. That mix is expensive to generate and easy to lose \u2014 so the door must be as gas-tight as it is insulated. This door seals the atmosphere in, holds the temperature steady, and equalizes pressure safely, built to your opening from prototype to full production runs.<\/p>\n\n          <div class=\"btn-group\">\n            <span class=\"pill\">Gas-Tight Sealing<\/span>\n            <span class=\"pill\">Pressure Equalization<\/span>\n            <span class=\"pill\">Insulated PU Panel<\/span>\n            <span class=\"pill\">Any Size \u00b7 Custom Engineered<\/span>\n          <\/div>\n\n          <div class=\"page-actions\">\n            <a class=\"btn btn-primary\" href=\"https:\/\/www.raxdoors.com\/contact-us\/\">Get a Free Quote<\/a>\n            \n          <\/div>\n        <\/div>\n\n        <div class=\"page-hero__media\">\n          <img decoding=\"async\" src=\"https:\/\/www.raxdoors.com\/wp-content\/uploads\/2026\/08\/cold-storage-door-7.jpg\" alt=\"RAX controlled atmosphere CA door with gas-tight sealing on a controlled atmosphere fruit storage room\" fetchpriority=\"high\">\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- ===== 02 OVERVIEW \/ WHY ============================================== -->\n  <section class=\"section\">\n    <div class=\"container-xl\">\n      <div class=\"section-heading\">\n        <span class=\"eyebrow\">01 \u00b7 Overview<\/span>\n        <h2>Why a CA Room Needs a Special Door<\/h2>\n        <p class=\"lead\">One idea: a normal cold room door keeps heat out, but a CA door must also keep a carefully engineered gas mix in. Any leak lets oxygen back in, restarts ripening and wastes the cost of running the CA generator.<\/p>\n      <\/div>\n      <div class=\"divider\"><\/div>\n\n      <div class=\"section-rail flow-top-lg\">\n        <div class=\"section-rail__body\">\n          <p class=\"text-lead\">Controlled atmosphere storage extends the shelf life of apples, pears and other produce by lowering oxygen and raising carbon dioxide around the fruit, which dramatically slows respiration and ripening. The whole room is a sealed envelope, and the door is its largest movable joint. If that joint leaks, the room cannot hold its target atmosphere and the generator runs constantly to compensate.<\/p>\n          <p class=\"text-lead\">RAX builds the CA door with a continuous compressible gasket designed for gas-tightness, an insulated PU panel to hold the chilled temperature, and provision for a pressure-equalization device so the door is not loaded by the small pressure swings that CA rooms experience as temperature and gas levels change. Airtightness target, panel thickness and the final thermal figure are confirmed on your specification, and every unit is made to order from a single door, in any size and any RAL colour.<\/p>\n          <p class=\"text-muted\"><small>CA storage gas levels and temperature bands are industry-typical ranges for fruit storage; RAX confirms the airtightness target and rating for your room per project. The U-value is stated as a &#8220;down to&#8221; marketing reference for the insulated panel, not a tested door-set figure. RAX products are validated from \u221230 \u00b0C cold storage to +50 \u00b0C desert conditions.<\/small><\/p>\n        <\/div>\n        <div>\n          <h3>At a Glance<\/h3>\n          <ul class=\"list-check\">\n            <li>Gas-tight perimeter gasket to hold the modified atmosphere.<\/li>\n            <li>Insulated PU panel keeps the chilled temperature stable.<\/li>\n            <li>Provision for pressure equalization to protect the seal.<\/li>\n            <li>Vision window and airtight hardware for safe room checks.<\/li>\n            <li>Validated to 100,000 cycles; any size, any RAL, custom engineered to your specification.<\/li>\n          <\/ul>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- ===== 03 TECHNICAL SPECIFICATIONS ==================================== -->\n  <section class=\"section-dark section\">\n    <div class=\"container-xl\">\n      <div class=\"section-heading\">\n        <span class=\"eyebrow\">02 \u00b7 Technical Data<\/span>\n        <h2>Technical Specifications<\/h2>\n        <p class=\"lead\">Every door is engineered to your opening and your room. The values below are the validated baseline; final figures are confirmed on your specification. Each row states whether the value is RAX-measured, industry-typical or set per project.<\/p>\n      <\/div>\n      <div class=\"divider\"><\/div>\n\n      <div class=\"data-table-wrap flow-top-lg\">\n        <table class=\"data-table\">\n          <thead>\n            <tr>\n              <th>Parameter<\/th>\n              <th>Specification<\/th>\n              <th>Basis<\/th>\n            <\/tr>\n          <\/thead>\n          <tbody>\n            <tr>\n              <td class=\"row-label\">Door Type<\/td>\n              <td>Insulated, gas-tight controlled atmosphere (CA) door for modified-atmosphere produce storage.<\/td>\n              <td>Product definition<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Sealing<\/td>\n              <td>Continuous compressible <span class=\"hl\">gas-tight<\/span> silicone perimeter gasket; cam-action hardware draws the leaf onto the seal.<\/td>\n              <td>RAX build<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Airtightness Target<\/td>\n              <td>Engineered to the room&#8217;s leak-rate \/ half-life target for the CA gas mix \u2014 confirmed per project.<\/td>\n              <td>Per project<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Atmosphere Range<\/td>\n              <td>Compatible with low-O\u2082 \/ elevated-CO\u2082 fruit storage (commonly O\u2082 around <span class=\"hl\">1\u20135 %<\/span>); set by your CA system.<\/td>\n              <td>Industry-typical<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Pressure Equalization<\/td>\n              <td>Provision for a pressure-relief \/ equalization device so gas and temperature swings do not load the seal.<\/td>\n              <td>RAX option<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Insulation Core<\/td>\n              <td>High-density PU foam panel, <span class=\"hl\">100 \/ 150 \/ 200 mm<\/span> selected to match the chilled room temperature.<\/td>\n              <td>Per project<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Temperature Band<\/td>\n              <td>Chilled produce storage, typically <span class=\"hl\">0 to +5 \u00b0C<\/span> (fruit-dependent).<\/td>\n              <td>Industry-typical<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Thermal Performance<\/td>\n              <td>U-value <span class=\"hl\">down to 0.33 W\/m\u00b2K<\/span> for the insulated panel construction (marketing reference, not a door-set test).<\/td>\n              <td>Marketing value<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Cycle Life<\/td>\n              <td><span class=\"hl\">100,000 cycles<\/span> validated in the RAX 100,000-cycle fatigue test lab.<\/td>\n              <td>RAX-measured<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Panel Skins<\/td>\n              <td>Galvanized steel sheet (0.4\u20131.5 mm); stainless steel 304\/316 available for hygienic rooms.<\/td>\n              <td>RAX build<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Frame<\/td>\n              <td>Aluminum alloy profile 6063-T5; thermal-break detail to limit cold bridging.<\/td>\n              <td>RAX build<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Safety<\/td>\n              <td>Internal safety release, airtight vision window (clear PVC \/ polycarbonate) for safe room inspection.<\/td>\n              <td>RAX build<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Operating Range<\/td>\n              <td>Validated from <span class=\"hl\">\u221230 \u00b0C<\/span> cold storage to <span class=\"hl\">+50 \u00b0C<\/span> desert conditions.<\/td>\n              <td>RAX-tested<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Fire Rating<\/td>\n              <td>EI60 \/ EI120 available \u2014 engineered and tested per project.<\/td>\n              <td>Per project<\/td>\n            <\/tr>\n            <tr>\n              <td class=\"row-label\">Max Opening<\/td>\n              <td>Custom to your opening \u2014 confirm on technical layout.<\/td>\n              <td>Per project<\/td>\n            <\/tr>\n          <\/tbody>\n        <\/table>\n      <\/div>\n      <p class=\"text-lead flow-top-lg\">Need an airtightness, U-value or fire figure certified for tender? We arrange third-party test data against the matching standard per project \u2014 see Compliance below.<\/p>\n    <\/div>\n  <\/section>\n\n  <!-- ===== 04 STRUCTURE & MATERIALS ======================================= -->\n  <section class=\"section\">\n    <div class=\"container-xl\">\n      <div class=\"section-heading\">\n        <span class=\"eyebrow\">03 \u00b7 Structure &amp; Materials<\/span>\n        <h2>What the Door Is Made Of<\/h2>\n        <p class=\"lead\">Validated substrates, processed in-house on an auto PU foam panel line and CNC punching\/bending centre. The gasket and closing hardware are specified for gas-tightness, not just insulation.<\/p>\n      <\/div>\n      <div class=\"divider\"><\/div>\n\n      <div class=\"grid-3 flow-top-lg\">\n        <div class=\"card\">\n          <span class=\"card-tag\">Sealing<\/span>\n          <h3>Gas-Tight Silicone Gasket<\/h3>\n          <p class=\"card-meta\">Continuous compressible silicone perimeter gasket specified to limit gas leakage and hold the modified atmosphere.<\/p>\n        <\/div>\n        <div class=\"card\">\n          <span class=\"card-tag\">Core<\/span>\n          <h3>High-Density PU Foam Panel<\/h3>\n          <p class=\"card-meta\">100, 150 or 200 mm polyurethane foam core for the thermal stability chilled produce storage requires.<\/p>\n        <\/div>\n        <div class=\"card\">\n          <span class=\"card-tag\">Hardware<\/span>\n          <h3>Cam-Action Closing Gear<\/h3>\n          <p class=\"card-meta\">Multi-point cam hardware draws the leaf evenly onto its gasket so the seal compresses consistently all round.<\/p>\n        <\/div>\n        <div class=\"card\">\n          <span class=\"card-tag\">Frame<\/span>\n          <h3>Aluminum Alloy 6063-T5<\/h3>\n          <p class=\"card-meta\">Structural aluminum frame profiles with a thermal-break detail to reduce cold bridging at the opening edge.<\/p>\n        <\/div>\n        <div class=\"card\">\n          <span class=\"card-tag\">Skins<\/span>\n          <h3>Galvanized or Stainless Skins<\/h3>\n          <p class=\"card-meta\">Galvanized steel sheet (0.4\u20131.5 mm) as standard; stainless 304\/316 for hygienic and corrosive environments.<\/p>\n        <\/div>\n        <div class=\"card\">\n          <span class=\"card-tag\">Safety<\/span>\n          <h3>Vision Window &amp; Release<\/h3>\n          <p class=\"card-meta\">Airtight clear PVC \/ polycarbonate vision window for inspection, plus an internal safety release for safe entry.<\/p>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- ===== 05 APPLICATIONS ================================================ -->\n  <section class=\"section-dark section\">\n    <div class=\"container-xl\">\n      <div class=\"section-heading\">\n        <span class=\"eyebrow\">04 \u00b7 Applications<\/span>\n        <h2>Where It Performs Best<\/h2>\n        <p class=\"lead\">Long-term produce storage where the atmosphere is as important as the temperature.<\/p>\n      <\/div>\n      <div class=\"divider\"><\/div>\n\n      <div class=\"grid-4 flow-top-lg\">\n        <div class=\"card\">\n          <span class=\"card-tag\">Produce<\/span>\n          <h3>Apple &amp; Pear Storage<\/h3>\n          <p class=\"card-meta\">Long-term CA storage of pome fruit where low oxygen must be held for months.<\/p>\n        <\/div>\n        <div class=\"card\">\n          <span class=\"card-tag\">Fruit<\/span>\n          <h3>Soft &amp; Stone Fruit<\/h3>\n          <p class=\"card-meta\">Modified-atmosphere rooms for berries, kiwifruit and stone fruit shelf-life extension.<\/p>\n        <\/div>\n        <div class=\"card\">\n          <span class=\"card-tag\">Cold Chain<\/span>\n          <h3>Produce Packing Houses<\/h3>\n          <p class=\"card-meta\">Gas-tight doors between CA rooms, anterooms and packing lines in export packhouses.<\/p>\n        <\/div>\n        <div class=\"card\">\n          <span class=\"card-tag\">Research<\/span>\n          <h3>Post-Harvest Research<\/h3>\n          <p class=\"card-meta\">Sealed chambers for post-harvest trials that need a stable, leak-controlled atmosphere.<\/p>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- ===== 06 technical drawing + INSTALLATION MANUALS ================================== -->\n  <section class=\"section\" id=\"installation-manuals\">\n    <div class=\"container-xl\">\n      <div class=\"section-heading\">\n        <span class=\"eyebrow\">05 \u00b7 Engineering Delivery<\/span>\n        <h2>Installation Manuals<\/h2>\n        <p class=\"lead\">Your installers get the full document set before the door ships \u2014 including the sealing detail your CA integrator needs to sign off.<\/p>\n      <\/div>\n      <div class=\"divider\"><\/div>\n\n      <div class=\"page-split flow-top-lg\">\n        <div class=\"page-media-card\">\n          <img decoding=\"async\" src=\"https:\/\/www.raxdoors.com\/wp-content\/uploads\/2026\/08\/cold-storage-door-8.jpg\" alt=\"RAX controlled atmosphere door sealing and frame detail for gas-tight cold room installation\" loading=\"lazy\">\n        <\/div>\n        <div class=\"page-section__copy\">\n          <h3>What Ships With the Engineering Package<\/h3>\n          <ul class=\"list-check\">\n            <li>installation guides showing the gas-tight sealing detail.<\/li>\n            <li>English installation manual for your site team.<\/li>\n            <li>FAI first-article confirmation and pre-assembly photos.<\/li>\n            <li>Factory inspection report: insulation resistance, noise, visual and function tests.<\/li>\n            <li>100,000-cycle fatigue test video \/ report.<\/li>\n            <li>Tooling records archived up to 5 years \u2014 no extra tooling fee on repeat orders.<\/li>\n          <\/ul>\n          <div class=\"page-actions\">\n            <a class=\"btn btn-primary\" href=\"https:\/\/www.raxdoors.com\/contact-us\/\">Request Manuals<\/a>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- ===== 07 CERTIFICATIONS & TESTING ==================================== -->\n  <section class=\"section-dark section\">\n    <div class=\"container-xl\">\n      <div class=\"section-heading\">\n        <span class=\"eyebrow\">06 \u00b7 Compliance<\/span>\n        <h2>Certifications &amp; Testing<\/h2>\n        <p class=\"lead\">Certificates we hold today, and the project-specific test data we arrange against the matching standard. We state held vs. per-project so you can tender honestly.<\/p>\n      <\/div>\n      <div class=\"divider\"><\/div>\n\n      <div class=\"grid-4 flow-top-lg\">\n        <div class=\"card\">\n          <span class=\"card-tag\">Held<\/span>\n          <h3>ISO 9001:2015<\/h3>\n          <p class=\"card-meta\">Certified quality management system across the 11,000 m\u00b2 production base.<\/p>\n        <\/div>\n        <div class=\"card\">\n          <span class=\"card-tag\">Held<\/span>\n          <h3>CE \u00b7 EN 13241<\/h3>\n          <p class=\"card-meta\">Harmonized product standard for industrial doors \u2014 the basis for CE marking.<\/p>\n        <\/div>\n        <div class=\"card\">\n          <span class=\"card-tag\">Held<\/span>\n          <h3>CE \u00b7 EN 12453<\/h3>\n          <p class=\"card-meta\">Operator safety standard covering power-operated door drive and safety-edge behaviour.<\/p>\n        <\/div>\n        <div class=\"card\">\n          <span class=\"card-tag\">Held<\/span>\n          <h3>SGS Material Reports<\/h3>\n          <p class=\"card-meta\">Third-party SGS material verification on validated steel and aluminum substrates.<\/p>\n        <\/div>\n      <\/div>\n\n      <div class=\"btn-group flow-top-lg\">\n        <span class=\"pill\">100,000-Cycle Fatigue Tested<\/span>\n        <span class=\"pill\">Product Liability Insurance<\/span>\n        <span class=\"pill\">Fire Rating EI60 \/ EI120 \u00b7 Per Project<\/span>\n        <span class=\"pill\">AS\/NZS 4505 &amp; UL Test Data \u00b7 Per Project<\/span>\n      <\/div>\n      <p class=\"text-lead flow-top-lg\">Rigorous 100,000-cycle fatigue testing, validated galvanized steel and aluminum alloy materials, and precision manufacturing \u2014 performed in-house, not outsourced.<\/p>\n    <\/div>\n  <\/section>\n\n  <!-- ===== 08 CUSTOMIZATION =============================================== -->\n  <section class=\"section\">\n    <div class=\"container-xl\">\n      <div class=\"section-heading\">\n        <span class=\"eyebrow\">07 \u00b7 Customization<\/span>\n        <h2>Any Size, Any RAL, Custom Engineered to Your Specification<\/h2>\n        <p class=\"lead\">Large industrial doors from prototype to container-load delivery. Start with an OEM sample and scale to container-load branded production.<\/p>\n      <\/div>\n      <div class=\"divider\"><\/div>\n\n      <div class=\"split-grid flow-top-lg\">\n        <div>\n          <p class=\"text-lead\">Every CA door is built to your opening and your room. Send the clear opening size, the target atmosphere and airtightness requirement, the chilled temperature band and whether you need a pressure-equalization device (or site photos) and our engineers return a proposal, technical confirmation and lead time.<\/p>\n          <ul class=\"list-check\">\n            <li>Any size and any spec \u2014 engineered to your exact opening.<\/li>\n            <li>Gasket and hardware specified to your room&#8217;s airtightness target.<\/li>\n            <li>Panel thickness matched to the room: 100, 150 or 200 mm PU foam.<\/li>\n            <li>Full RAL colour, batch-consistent (common RAL9006, RAL9010, RAL7016, RAL5010); stainless skins for hygiene.<\/li>\n            <li>Deep OEM\/ODM: private label, packaging printing, manual translation, NDA. custom engineered to your specification.<\/li>\n          <\/ul>\n        <\/div>\n        <div class=\"cta-slab\">\n          <h3>What Ships With Every Order<\/h3>\n          <p>From custom engineering to container-load delivery \u2014 the document set your local installers need.<\/p>\n          <ul>\n            <li>Factory inspection report (insulation resistance, noise, visual, function).<\/li>\n            <li>100,000-cycle fatigue test video \/ report.<\/li>\n            <li>FAI first-article confirmation \/ pre-assembly photos.<\/li>\n            <li>English installation manual + technical drawings + wiring diagrams.<\/li>\n            <li>CE Declaration of Conformity + EN 13241 test report.<\/li>\n            <li>Export packing: steel frame + pearl cotton + stretch film, traceable batch no.<\/li>\n          <\/ul>\n          <p><small>Warranty: door body 2 years \u00b7 operator\/motor 3 years \u00b7 servo motor 5 years. Free spare parts within warranty (DHL\/FedEx 5\u20137 days). Lead time: sample 7\u201315 days \u00b7 standard container 12\u201320 days \u00b7 custom first order 20\u201335 days.<\/small><\/p>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- ===== 09 FAQ ========================================================= -->\n  <section class=\"section-soft section\">\n    <div class=\"container-xl\">\n      <div class=\"faq-split\">\n        <aside class=\"faq-split__left\" aria-label=\"FAQ overview\">\n          <span class=\"faq-split__eyebrow\">08 \u00b7 Buyer FAQ<\/span>\n          <h2 class=\"faq-split__title\">Controlled Atmosphere Door questions<span class=\"accent\">,<\/span> answered<span class=\"accent\">.<\/span><\/h2>\n          <p class=\"faq-split__lead\">Straight answers on gas-tightness, pressure equalization, insulation, certification, OEM, lead time and the documents that ship with your door.<\/p>\n          <a class=\"faq-split__cta\" href=\"https:\/\/www.raxdoors.com\/contact-us\/\">Get a quote\n            <svg viewBox=\"0 0 24 24\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2.4\" stroke-linecap=\"round\" stroke-linejoin=\"round\" aria-hidden=\"true\">\n              <line x1=\"5\" y1=\"12\" x2=\"19\" y2=\"12\"><\/line>\n              <polyline points=\"12 5 19 12 12 19\"><\/polyline>\n            <\/svg>\n          <\/a>\n        <\/aside>\n        <div class=\"faq-split__right\">\n          <div class=\"faq-stack\">\n            <details>\n              <summary>What makes a CA door different from a normal cold room door?<\/summary>\n              <div class=\"faq-stack__answer\"><p>A normal cold room door mainly keeps heat out. A CA door must also keep a precise low-oxygen, high-carbon-dioxide gas mix in, because that mix is what slows ripening. So a CA door is built around a continuous gas-tight gasket and multi-point cam hardware that compresses the seal evenly all round, not just an insulating panel.<\/p><\/div>\n            <\/details>\n            <details>\n              <summary>How airtight is the door?<\/summary>\n              <div class=\"faq-stack__answer\"><p>Airtightness is set by your room&#8217;s leak-rate or half-life target, which depends on the CA system and the crop. We engineer the gasket and closing gear to that target and confirm it per project on the technical layout. If you need a certified airtightness figure for tender, we arrange third-party test data against the matching standard.<\/p><\/div>\n            <\/details>\n            <details>\n              <summary>Why does a CA door need pressure equalization?<\/summary>\n              <div class=\"faq-stack__answer\"><p>CA rooms experience small pressure swings as temperature changes and as the nitrogen generator or oxygen scrubber runs. Without a pressure-relief or equalization device, those swings push and pull on the door leaf, stressing the gasket and creating leaks. We provide for a pressure-equalization device so the seal is not loaded by these normal room-pressure changes.<\/p><\/div>\n            <\/details>\n            <details>\n              <summary>Is the door insulated as well as gas-tight?<\/summary>\n              <div class=\"faq-stack__answer\"><p>Yes. The door carries a 100, 150 or 200 mm high-density PU foam panel matched to the chilled room temperature (typically 0\u20135 \u00b0C for fruit), so it holds both the atmosphere and the temperature. The U-value is stated as a &#8220;down to&#8221; marketing reference for the panel; RAX confirms the thermal performance for your room per project.<\/p><\/div>\n            <\/details>\n            <details>\n              <summary>Which certifications do you hold for this door?<\/summary>\n              <div class=\"faq-stack__answer\"><p>RAX holds ISO 9001:2015, CE marking against EN 13241 (industrial door product standard) and EN 12453 (operator safety), plus SGS material reports and Product Liability Insurance. Fire rating (EI60\/EI120) and AS\/NZS 4505 \/ UL counterpart test data are arranged per project, not held as standing certificates.<\/p><\/div>\n            <\/details>\n            <details>\n              <summary>Can you OEM-label it and build to my exact opening?<\/summary>\n              <div class=\"faq-stack__answer\"><p>Yes. Every door is engineered to your clear opening, fully custom-engineered to your opening in any RAL colour. Full OEM\/ODM is supported \u2014 private label, packaging printing and manual translation (EN\/ES\/FR\/AR\/RU) \u2014 under strict NDA.<\/p><\/div>\n            <\/details>\n            <details>\n              <summary>What is the lead time and warranty?<\/summary>\n              <div class=\"faq-stack__answer\"><p>Sample orders run 7\u201315 days, a standard container 12\u201320 days, and a custom first order 20\u201335 days (repeat custom orders 15\u201320 days). FOB ports are Tianjin and Qingdao; FCL and LCL are both supported. The door body is warranted for 2 years and the operator\/motor for 3 years (servo motor 5 years), with free spare parts shipped by DHL\/FedEx within warranty.<\/p><\/div>\n            <\/details>\n            <details>\n              <summary>What documents ship with the door?<\/summary>\n              <div class=\"faq-stack__answer\"><p>Every order includes installation guides showing the gas-tight sealing detail, an English installation manual, FAI first-article confirmation and pre-assembly photos, a factory inspection report (insulation resistance, noise, visual and function tests), the 100,000-cycle fatigue test video\/report, and the CE Declaration of Conformity with the EN 13241 test report.<\/p><\/div>\n            <\/details>\n          <\/div>\n        <\/div>\n      <\/div>\n    <\/div>\n  <\/section>\n\n  <!-- ===== 10 CTA BAND ==================================================== -->\n  <section class=\"section-dark section\">\n    <div class=\"container-xl\">\n      <div class=\"center-stack\">\n        <span class=\"eyebrow\">09 \u00b7 Get Started<\/span>\n        <h2>Get Your CA Door Proposal<\/h2>\n        <p class=\"lead\">Send your opening size (W \u00d7 H), target atmosphere and airtightness requirement, and chilled temperature band. Our engineers reply with a proposal and lead time \u2014 no obligation.<\/p>\n        <div class=\"btn-group\">\n          <a class=\"btn btn-primary\" href=\"https:\/\/www.raxdoors.com\/contact-us\/\">Get a Free Quote<\/a>\n<\/div>\n<\/div>\n    <\/div>\n  <\/section>\n\n<\/div>\n\n<!-- ===== 11 STRUCTURED DATA =============================================== -->\n<script type=\"application\/ld+json\">{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Product\",\n      \"@id\": \"\/cold-room-doors\/controlled-atmosphere-door\/#product\",\n      \"name\": \"Controlled Atmosphere (CA) Door\",\n      \"url\": \"\/cold-room-doors\/controlled-atmosphere-door\/\",\n      \"image\": [\n        \"https:\/\/www.raxdoors.com\/wp-content\/uploads\/2026\/08\/cold-storage-door-7.jpg\",\n        \"https:\/\/www.raxdoors.com\/wp-content\/uploads\/2026\/08\/cold-storage-door-8.jpg\"\n      ],\n      \"description\": \"Gas-tight insulated controlled atmosphere (CA) door for modified-atmosphere fruit and produce storage. 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A CA door must also keep a precise low-oxygen, high-carbon-dioxide gas mix in, because that mix is what slows ripening. So a CA door is built around a continuous gas-tight gasket and multi-point cam hardware that compresses the seal evenly all round, not just an insulating panel.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"How airtight is the door?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Airtightness is set by your room's leak-rate or half-life target, which depends on the CA system and the crop. We engineer the gasket and closing gear to that target and confirm it per project on the technical layout. If you need a certified airtightness figure for tender, we arrange third-party test data against the matching standard.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Why does a CA door need pressure equalization?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"CA rooms experience small pressure swings as temperature changes and as the nitrogen generator or oxygen scrubber runs. Without a pressure-relief or equalization device, those swings push and pull on the door leaf, stressing the gasket and creating leaks. We provide for a pressure-equalization device so the seal is not loaded by these normal room-pressure changes.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Is the door insulated as well as gas-tight?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Yes. The door carries a 100, 150 or 200 mm high-density PU foam panel matched to the chilled room temperature (typically 0-5 \u00b0C for fruit), so it holds both the atmosphere and the temperature. The U-value is stated as a \\\"down to\\\" marketing reference for the panel; RAX confirms the thermal performance for your room per project.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Which certifications do you hold for this door?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"RAX holds ISO 9001:2015, CE marking against EN 13241 (industrial door product standard) and EN 12453 (operator safety), plus SGS material reports and Product Liability Insurance. 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FOB ports are Tianjin and Qingdao; FCL and LCL are both supported. The door body is warranted for 2 years and the operator\/motor for 3 years (servo motor 5 years), with free spare parts shipped by DHL\/FedEx within warranty.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What documents ship with the door?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Every order includes installation guides showing the gas-tight sealing detail, an English installation manual, FAI first-article confirmation and pre-assembly photos, a factory inspection report (insulation resistance, noise, visual and function tests), the 100,000-cycle fatigue test video\/report, and the CE Declaration of Conformity with the EN 13241 test report.\"\n          }\n        }\n      ]\n    }\n  ]\n}<\/script>\n","protected":false},"excerpt":{"rendered":"<p>Inicio \/ Productos \/ Puertas para C\u00e1mara Fr\u00eda \/ Puerta para Atm\u00f3sfera Controlada (CA) Puertas para C\u00e1mara Fr\u00eda \u00b7 Fabricante desde 1999 Puerta para Atm\u00f3sfera Controlada (CA) Puerta aislada herm\u00e9tica a los gases para el almacenamiento de frutas y productos hort\u00edcolas en atm\u00f3sfera controlada, donde la mezcla gaseosa modificada no debe filtrarse. Una c\u00e1mara de atm\u00f3sfera controlada retarda la maduraci\u00f3n manteniendo una mezcla precisa de bajo ox\u00edgeno y alto di\u00f3xido de carbono\u2026 <a title=\"Puerta de atm\u00f3sfera controlada\" class=\"read-more\" href=\"https:\/\/www.raxdoors.com\/es\/cold-room-doors\/controlled-atmosphere-door\/\" aria-label=\"Leer m\u00e1s sobre Puerta para Atm\u00f3sfera Controlada\">Leer m\u00e1s<\/a><\/p>","protected":false},"author":1,"featured_media":0,"parent":454,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-522","page","type-page","status-publish"],"_links":{"self":[{"href":"https:\/\/www.raxdoors.com\/es\/wp-json\/wp\/v2\/pages\/522","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.raxdoors.com\/es\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.raxdoors.com\/es\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.raxdoors.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.raxdoors.com\/es\/wp-json\/wp\/v2\/comments?post=522"}],"version-history":[{"count":4,"href":"https:\/\/www.raxdoors.com\/es\/wp-json\/wp\/v2\/pages\/522\/revisions"}],"predecessor-version":[{"id":4149,"href":"https:\/\/www.raxdoors.com\/es\/wp-json\/wp\/v2\/pages\/522\/revisions\/4149"}],"up":[{"embeddable":true,"href":"https:\/\/www.raxdoors.com\/es\/wp-json\/wp\/v2\/pages\/454"}],"wp:attachment":[{"href":"https:\/\/www.raxdoors.com\/es\/wp-json\/wp\/v2\/media?parent=522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}