{"title":"Laboratory Freeze Dryers","description":"\u003ch2\u003eYamato Laboratory Freeze Dryers (Lyophilizers)\u003c\/h2\u003e\n\u003cp\u003eThe Yamato DC-401 is a benchtop freeze dryer with an integrated refrigerated cold trap that reaches \u003cstrong\u003e−45 °C in about 50 minutes\u003c\/strong\u003e and dehumidifies up to 0.6 L per run. A Pirani vacuum gauge monitors the chamber, a Hot Gas Bypass System refreezes and clears trap ice without manual scraping, and an automatic safety vacuum-venting system prevents pump-oil backflow on power-off or power failure — a genuinely contaminant-free design. Made in Japan, mobile on casters, and sold by LabSupplies.com as an authorized Yamato Scientific dealer.\u003c\/p\u003e\n\n\u003ch3\u003eChoose your DC-401 configuration\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/freeze-dryer-with-refrigerated-cold-trap-main-unit-4l-trap-cooling-temp-45-c-dc-401\"\u003e\u003cstrong\u003eDC-401\u003c\/strong\u003e — Main unit, 4 L\u003c\/a\u003e: the refrigerated trap and vacuum platform on its own. Chamber, manifold, mounting flasks and glassware are selected separately to match your drying method (115 V or 220 V).\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/dc401-with-12-port-flask-mounting-chamber-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-cap-dc-401a\"\u003e\u003cstrong\u003eDC-401A\u003c\/strong\u003e — with 12-port flask-mounting chamber\u003c\/a\u003e: DC-401 supplied with a 12-port flask mounting chamber (Ø195 × H303 mm) and five 120 mL dry flasks with straight glass joint and cap — ready for bulk flask drying.\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/dc401-with-manifold-a-8-port-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-and-cap-dc-401b\"\u003e\u003cstrong\u003eDC-401B\u003c\/strong\u003e — with 8-port Manifold A\u003c\/a\u003e: DC-401 supplied with an 8-port manifold (W304 × D60 × H263 mm) and five 120 mL dry flasks — for direct manifold attachment of flasks, ampules and serum bottles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSelecting the right setup\u003c\/h3\u003e\n\u003cp\u003ePick the \u003cstrong\u003eDC-401A\u003c\/strong\u003e when you dry many flasks of bulk product in a chamber, and the \u003cstrong\u003eDC-401B\u003c\/strong\u003e when you attach individual vessels to a manifold. Start with the bare \u003cstrong\u003eDC-401\u003c\/strong\u003e if you already own compatible glassware or need a custom chamber. A standalone \u003ca href=\"\/collections\/laboratory-cold-traps\"\u003ecold trap\u003c\/a\u003e and a \u003ca href=\"\/collections\/laboratory-water-circulators\"\u003ewater circulator\u003c\/a\u003e complement freeze-drying and vacuum-concentration workflows. See the \u003ca href=\"\/pages\/freeze-dryer-buying-guide\"\u003eFreeze Dryer Buying Guide\u003c\/a\u003e for chamber, manifold and glassware guidance.\u003c\/p\u003e","products":[{"product_id":"freeze-dryer-with-refrigerated-cold-trap-main-unit-4l-trap-cooling-temp-45-c-dc-401","title":"Yamato DC401 Freeze Dryer, 4L (−45°C Refrigerated Cold Trap)","description":"\u003ch2\u003eYamato DC401 Freeze Dryer, 4L (−45°C Refrigerated Cold Trap) Overview\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eYamato Scientific DC401 Freeze Dryer with Refrigerated Cold Trap\u003c\/strong\u003e is a benchtop lyophilizer built around a 4 L drying capacity and a trap cooling temperature of -45°C. LabSupplies.com supplies this main unit as an authorized dealer, delivering a genuine Yamato Scientific instrument for sample preservation, reagent stabilization, and small-batch lyophilization.\u003c\/p\u003e\u003cp\u003eA stainless steel cylindrical cold trap, measuring Dia. 153 × H235 mm, captures sublimated moisture with a 0.6 L dehumidifying capacity. The Hot Gas Bypass System refreezes and releases ice smoothly, eliminating manual scraping. A Pirani vacuum gauge monitors chamber pressure, while automatic safety vacuum venting prevents pump-oil backflow during power loss.\u003c\/p\u003e\u003cp\u003eEach unit runs on AC115V, 12 A (50\/60 Hz) and reaches -45°C from 20°C in roughly 50 minutes. External dimensions are 300 × 450 × 920 mm with a weight near 60 kg, and integrated casters keep the system mobile. Manufactured in Japan, it ships with vacuum silicone grease and a vacuum hose.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefrigerated cold trap:\u003c\/strong\u003e stainless steel cylinder reaches -45°C, cooling from 20°C in about 50 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot Gas Bypass defrost:\u003c\/strong\u003e refreezes and removes accumulated ice smoothly without manual scraping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContaminant-free venting:\u003c\/strong\u003e automatic safety vacuum venting prevents oil backflow on power-off or power failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePirani vacuum gauge:\u003c\/strong\u003e monitors chamber pressure throughout the lyophilization cycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLayered safety devices:\u003c\/strong\u003e electric leakage breaker with overcurrent protection, refrigerator overload relay, back-flow prevention valve, and a safety valve linked to the vacuum-pump service receptacle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMobile benchtop design:\u003c\/strong\u003e 400 W air-cooled refrigeration with R404A refrigerant, mounted on casters for easy relocation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Choose the Right Freeze Dryer\u003c\/h2\u003e\u003cp\u003eMatching a freeze dryer to your workflow means weighing trap temperature, capacity, site power, and defrost handling against the samples you process. Use these axes to confirm the DC401 fits your lab.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrap cooling temperature:\u003c\/strong\u003e a -45°C trap suits aqueous samples and standard buffers; lower-eutectic solvents may require a colder trap.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrying capacity:\u003c\/strong\u003e the 4 L chamber and 0.6 L dehumidifying capacity define how much moisture you can collect per run.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage and power:\u003c\/strong\u003e verify your circuit supports the chosen 115V or 220V configuration before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefrost method:\u003c\/strong\u003e the Hot Gas Bypass System removes ice without scraping, reducing downtime between batches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootprint and mobility:\u003c\/strong\u003e confirm the 300 × 450 × 920 mm body and ~60 kg weight suit your bench, then use the casters to reposition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration needs:\u003c\/strong\u003e this is the main unit; budget separately for drying chamber, manifold, mounting flasks, caps, and glass containers.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e4 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e115V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eBenchtop freeze dryer with refrigerated cold trap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrap Cooling Temperature\u003c\/td\u003e\n\u003ctd\u003e-45°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTime to Reach Minimum Temperature\u003c\/td\u003e\n\u003ctd\u003e50 min (20°C to -45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDehumidifying Capacity\u003c\/td\u003e\n\u003ctd\u003e0.6 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Capacity\u003c\/td\u003e\n\u003ctd\u003e~4 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigeration System\u003c\/td\u003e\n\u003ctd\u003eAir cooling, 400 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003eR404A (300 g ±5 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVacuum Gauge\u003c\/td\u003e\n\u003ctd\u003ePirani vacuum gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrap Defrost\u003c\/td\u003e\n\u003ctd\u003eHot Gas Bypass System (ice refrozen and removed smoothly without manual scraping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContaminant-Free System\u003c\/td\u003e\n\u003ctd\u003eAutomatic safety vacuum venting prevents oil backflow on power-off or power failure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrap Material \/ Shape\u003c\/td\u003e\n\u003ctd\u003eCylinder, stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrap Dimensions\u003c\/td\u003e\n\u003ctd\u003eDia. 153 × H235 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust Port\u003c\/td\u003e\n\u003ctd\u003eDia. 17 mm (vacuum pump connection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Ambient Temperature\u003c\/td\u003e\n\u003ctd\u003e5°C to 30°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Devices\u003c\/td\u003e\n\u003ctd\u003eElectric leakage breaker with overcurrent protection, refrigerator overload relay, back-flow prevention valve, safety valve linked with vacuum-pump service receptacle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrain\u003c\/td\u003e\n\u003ctd\u003eVacuum hose with stopper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMobility\u003c\/td\u003e\n\u003ctd\u003eHighly mobile on casters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Dimensions (W×D×H)\u003c\/td\u003e\n\u003ctd\u003e300 × 450 × 920 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~60 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Accessories\u003c\/td\u003e\n\u003ctd\u003eVacuum silicone grease, vacuum hose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eMain unit — drying chamber, manifold, mounting flasks, flask caps and glass container sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003eAC115V, 12 A (50\/60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAvailable Sizes and Configurations\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC-401-115V\u003c\/td\u003e\n\u003ctd\u003e115V\u003c\/td\u003e\n\u003ctd\u003eEA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC-401-220V\u003c\/td\u003e\n\u003ctd\u003e220V\u003c\/td\u003e\n\u003ctd\u003eEA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eDocumentation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.yamato-usa.com\/web\/content\/15346\" target=\"_blank\" rel=\"noopener\"\u003eProduct Brochure\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.yamato-usa.com\/shop\/yamato-dc401-pirani-vacuum-gauge-freeze-dryer-41\" target=\"_blank\" rel=\"noopener\"\u003eYamato Scientific Official Product Page\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMore in This Series\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/dc401-with-12-port-flask-mounting-chamber-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-cap-dc-401a\"\u003eDc401 With 12 Port Flask Mounting Chamber \u0026amp; 5 Pcs. Of 120mL Dry Flask With Straight Glass Joint \u0026amp; Cap\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/dc401-with-manifold-a-8-port-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-and-cap-dc-401b\"\u003eDc401 With Manifold A (8 Port) \u0026amp; 5 Pcs. Of 120mL Dry Flask With Straight Glass Joint And Cap\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Buy From LabSupplies.com\u003c\/h2\u003e\u003cp\u003eLabSupplies.com is an authorized Yamato Scientific dealer, so every DC401 ships as a genuine factory unit backed by the manufacturer warranty. Our team supports procurement specialists and lab managers from quote-free purchase through delivery.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized Yamato Scientific dealer:\u003c\/strong\u003e genuine instruments with full manufacturer warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn stock:\u003c\/strong\u003e ready to ship from USA inventory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect purchase:\u003c\/strong\u003e order online without back-and-forth quoting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab-equipment specialists:\u003c\/strong\u003e dedicated support for spec and configuration questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat trap cooling temperature does the DC401 reach?\u003c\/h3\u003e\u003cp\u003eThe DC401 cold trap reaches -45°C. It cools from 20°C to -45°C in approximately 50 minutes, supporting aqueous and standard buffer lyophilization.\u003c\/p\u003e\n\u003ch3\u003eWhat is the drying and dehumidifying capacity?\u003c\/h3\u003e\u003cp\u003eThe DC401 provides roughly 4 L of internal drying capacity with a 0.6 L dehumidifying (ice-collection) capacity per run.\u003c\/p\u003e\n\u003ch3\u003eWhat voltage options are available, and what power does it draw?\u003c\/h3\u003e\u003cp\u003eThe DC401 is offered in 115V and 220V configurations. The 115V version operates on AC115V, 12 A at 50\/60 Hz, so confirm your circuit before ordering.\u003c\/p\u003e\n\u003ch3\u003eWhat is the cold trap made of, and how is it defrosted?\u003c\/h3\u003e\u003cp\u003eThe cold trap is a stainless steel cylinder measuring Dia. 153 × H235 mm. A Hot Gas Bypass System refreezes and removes ice smoothly without manual scraping.\u003c\/p\u003e\n\u003ch3\u003eWhat are the external dimensions and weight?\u003c\/h3\u003e\u003cp\u003eExternal dimensions are 300 × 450 × 920 mm (W×D×H) with a weight of approximately 60 kg. Built-in casters keep the unit mobile on the bench.\u003c\/p\u003e\n\u003ch3\u003eIs the drying chamber and glassware included?\u003c\/h3\u003e\u003cp\u003eNo. The DC401 is sold as the main unit. The drying chamber, manifold, mounting flasks, flask caps, and glass container are sold separately. Vacuum silicone grease and a vacuum hose are included.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Product\",\n      \"@id\": \"https:\/\/labsupplies.com\/products\/freeze-dryer-with-refrigerated-cold-trap-main-unit-4l-trap-cooling-temp-45-c-dc-401#product\",\n      \"name\": \"Yamato DC401 Freeze Dryer With Refrigerated Cold Trap Main Unit 4L . Trap Cooling Temp. -45°C\",\n      \"sku\": \"DC-401\",\n      \"mpn\": \"DC-401\",\n      \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"Yamato Scientific\"\n      },\n      \"manufacturer\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Yamato Scientific\"\n      },\n      \"url\": \"https:\/\/labsupplies.com\/products\/freeze-dryer-with-refrigerated-cold-trap-main-unit-4l-trap-cooling-temp-45-c-dc-401\",\n      \"dateModified\": \"2026-06-29\",\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"priceCurrency\": \"USD\",\n        \"price\": \"6890.00\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/labsupplies.com\/products\/freeze-dryer-with-refrigerated-cold-trap-main-unit-4l-trap-cooling-temp-45-c-dc-401\",\n        \"seller\": {\n          \"@type\": \"Organization\",\n          \"name\": \"LabSupplies.com\"\n        }\n      },\n      \"image\": \"https:\/\/dl.dropboxusercontent.com\/scl\/fo\/02jn6wbbh1yhzaqkcyplw\/h\/DC401.png?rlkey=wtjo5lqeg5sku9a3506qrpssx\",\n      \"description\": \"Yamato DC401 benchtop freeze dryer: 4L capacity, -45°C refrigerated cold trap, Pirani gauge, 115V\/220V. In stock. Authorized Yamato dealer, ships from USA.\"\n    },\n    {\n      \"@type\": \"BreadcrumbList\",\n      \"itemListElement\": [\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 1,\n          \"name\": \"Home\",\n          \"item\": \"https:\/\/labsupplies.com\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 2,\n          \"name\": \"Freeze Dryer\",\n          \"item\": \"https:\/\/labsupplies.com\/collections\/freeze-dryer\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 3,\n          \"name\": \"Yamato DC401 Freeze Dryer With Refrigerated Cold Trap Main Unit 4L . Trap Cooling Temp. -45°C\",\n          \"item\": \"https:\/\/labsupplies.com\/products\/freeze-dryer-with-refrigerated-cold-trap-main-unit-4l-trap-cooling-temp-45-c-dc-401\"\n        }\n      ]\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What trap cooling temperature does the DC401 reach?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The DC401 cold trap reaches -45°C. It cools from 20°C to -45°C in approximately 50 minutes, supporting aqueous and standard buffer lyophilization.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What is the drying and dehumidifying capacity?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The DC401 provides roughly 4 L of internal drying capacity with a 0.6 L dehumidifying (ice-collection) capacity per run.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What voltage options are available, and what power does it draw?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The DC401 is offered in 115V and 220V configurations. The 115V version operates on AC115V, 12 A at 50\/60 Hz, so confirm your circuit before ordering.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What is the cold trap made of, and how is it defrosted?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The cold trap is a stainless steel cylinder measuring Dia. 153 × H235 mm. A Hot Gas Bypass System refreezes and removes ice smoothly without manual scraping.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What are the external dimensions and weight?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"External dimensions are 300 × 450 × 920 mm (W×D×H) with a weight of approximately 60 kg. Built-in casters keep the unit mobile on the bench.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Is the drying chamber and glassware included?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"No. The DC401 is sold as the main unit. The drying chamber, manifold, mounting flasks, flask caps, and glass container are sold separately. Vacuum silicone grease and a vacuum hose are included.\"\n          }\n        }\n      ]\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Yamato Scientific","offers":[{"title":"115V","offer_id":48693455356136,"sku":"DC-401-115V","price":6890.0,"currency_code":"USD","in_stock":true},{"title":"220V","offer_id":48693455388904,"sku":"DC-401-220V","price":6890.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/DC401.png?v=1782751644"},{"product_id":"dc401-with-12-port-flask-mounting-chamber-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-cap-dc-401a","title":"Yamato DC401A Freeze Dryer with 12-Port Flask Mounting Chamber","description":"\u003ch2\u003eYamato DC401A Freeze Dryer with 12-Port Flask Mounting Chamber Overview\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eYamato Scientific DC401 Freeze Dryer\u003c\/strong\u003e is a benchtop lyophilizer with a refrigerated cold trap reaching −45°C and roughly 4 L of internal capacity. LabSupplies.com, authorized dealer, ships this configured set with a 12-port flask mounting chamber and five 120 mL dry flasks. Procurement teams gain a complete, ready-to-run drying station for routine sample preservation.\u003c\/p\u003e\n\u003cp\u003eA cylindrical stainless steel trap measuring Dia. 153 × H235 mm captures moisture, while a Pirani vacuum gauge monitors chamber pressure. The Hot Gas Bypass System refreezes and releases trap ice smoothly, eliminating manual scraping. Automatic safety vacuum venting blocks oil backflow on power-off or power failure, protecting samples from contamination.\u003c\/p\u003e\n\u003cp\u003eAir-cooled refrigeration draws 400 W and runs on R404A refrigerant. Power options cover AC115V 12 A or AC220V 7 A at 50\/60 Hz. External dimensions of 300 × 450 × 920 mm and a weight near 60 kg suit bench placement, and integrated casters keep the roughly 60 kg unit mobile. Made in Japan.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e−45°C cold trap:\u003c\/strong\u003e reaches minimum temperature in about 50 minutes from 20°C, with 0.6 L dehumidifying capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot Gas Bypass defrost:\u003c\/strong\u003e trap ice is refrozen and removed smoothly without manual scraping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContaminant-free venting:\u003c\/strong\u003e automatic safety vacuum venting prevents oil backflow on power-off or power failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-port drying chamber:\u003c\/strong\u003e Dia. 195 × H303 mm chamber with 18.5 mm stopper ID, supplied with five 120 mL straight-joint dry flasks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel trap:\u003c\/strong\u003e cylindrical trap (Dia. 153 × H235 mm) paired with a Pirani vacuum gauge for pressure monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLayered safety devices:\u003c\/strong\u003e electric leakage breaker with overcurrent protection, refrigerator overload relay, back-flow prevention valve, and a safety valve linked to the vacuum-pump service receptacle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Choose the Right Freeze Dryer\u003c\/h2\u003e\n\u003cp\u003eSelecting a lyophilizer comes down to matching trap performance, sample throughput, and site power to your workflow. Use these axes to confirm the DC401 set fits your bench and protocol.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrap temperature:\u003c\/strong\u003e a −45°C trap suits aqueous samples; verify your solvent freezing point falls within range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDehumidifying capacity:\u003c\/strong\u003e the 0.6 L trap capacity defines how much moisture you can collect before defrosting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePort count and flask size:\u003c\/strong\u003e the 12-port chamber and 120 mL flasks set your simultaneous sample load per cycle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage and power:\u003c\/strong\u003e confirm AC115V 12 A or AC220V 7 A service is available at the installation point.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootprint and mobility:\u003c\/strong\u003e 300 × 450 × 920 mm with casters determines bench fit and how easily the unit relocates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety and contamination control:\u003c\/strong\u003e automatic vacuum venting and back-flow prevention protect samples and the vacuum pump during outages.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eGlass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eBenchtop freeze dryer with refrigerated cold trap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrap Cooling Temperature\u003c\/td\u003e\n\u003ctd\u003e-45°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTime to Reach Minimum Temperature\u003c\/td\u003e\n\u003ctd\u003e50 min (20°C to -45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDehumidifying Capacity\u003c\/td\u003e\n\u003ctd\u003e0.6 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Capacity\u003c\/td\u003e\n\u003ctd\u003e~4 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigeration System\u003c\/td\u003e\n\u003ctd\u003eAir cooling, 400 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003eR404A (300 g ±5 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVacuum Gauge\u003c\/td\u003e\n\u003ctd\u003ePirani vacuum gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrap Defrost\u003c\/td\u003e\n\u003ctd\u003eHot Gas Bypass System (ice refrozen and removed smoothly without manual scraping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContaminant-Free System\u003c\/td\u003e\n\u003ctd\u003eAutomatic safety vacuum venting prevents oil backflow on power-off or power failure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrap Material \/ Shape\u003c\/td\u003e\n\u003ctd\u003eCylinder, stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrap Dimensions\u003c\/td\u003e\n\u003ctd\u003eDia. 153 × H235 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust Port\u003c\/td\u003e\n\u003ctd\u003eDia. 17 mm (vacuum pump connection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Ambient Temperature\u003c\/td\u003e\n\u003ctd\u003e5°C to 30°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Devices\u003c\/td\u003e\n\u003ctd\u003eElectric leakage breaker with overcurrent protection, refrigerator overload relay, back-flow prevention valve, safety valve linked with vacuum-pump service receptacle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrain\u003c\/td\u003e\n\u003ctd\u003eVacuum hose with stopper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMobility\u003c\/td\u003e\n\u003ctd\u003eHighly mobile on casters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Dimensions (W×D×H)\u003c\/td\u003e\n\u003ctd\u003e300 × 450 × 920 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~60 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Accessories\u003c\/td\u003e\n\u003ctd\u003eVacuum silicone grease, vacuum hose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrying Chamber\u003c\/td\u003e\n\u003ctd\u003e12-port flask mounting chamber (Dia. 195 × H303 mm; stopper ID 18.5 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Glassware\u003c\/td\u003e\n\u003ctd\u003e5 × 120 mL dry flasks with straight glass joint and cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003eAC115V 12 A \/ AC220V 7 A (50\/60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAvailable Sizes and Configurations\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC-401A\u003c\/td\u003e\n\u003ctd\u003eSET\u003c\/td\u003e\n\u003ctd\u003eSET\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eDocumentation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.yamato-usa.com\/web\/content\/15346\" target=\"_blank\" rel=\"noopener\"\u003eProduct Brochure\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.yamato-usa.com\/shop\/yamato-dc401-pirani-vacuum-gauge-freeze-dryer-41\" target=\"_blank\" rel=\"noopener\"\u003eYamato Scientific Official Product Page\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMore in This Series\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/freeze-dryer-with-refrigerated-cold-trap-main-unit-4l-trap-cooling-temp-45-c-dc-401\"\u003eFreeze Dryer With Refrigerated Cold Trap Main Unit 4L . Trap Cooling Temp. -45°C\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/dc401-with-manifold-a-8-port-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-and-cap-dc-401b\"\u003eDc401 With Manifold A (8 Port) \u0026amp; 5 Pcs. Of 120mL Dry Flask With Straight Glass Joint And Cap\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Buy From LabSupplies.com\u003c\/h2\u003e\n\u003cp\u003eLabSupplies.com is an authorized Yamato Scientific dealer, so you receive a genuine DC401 set backed by the manufacturer warranty. Order directly and ship from USA inventory.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized Yamato Scientific dealer:\u003c\/strong\u003e genuine unit with full manufacturer warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn stock:\u003c\/strong\u003e available now and ready to ship.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips from USA inventory:\u003c\/strong\u003e direct dispatch to your lab.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab-equipment specialists:\u003c\/strong\u003e dedicated support for spec and configuration questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat trap temperature does the Yamato DC401 reach?\u003c\/h3\u003e\u003cp\u003eThe DC401 cold trap reaches −45°C. It cools from 20°C to −45°C in about 50 minutes and offers a 0.6 L dehumidifying capacity.\u003c\/p\u003e\n\u003ch3\u003eHow many samples can the 12-port chamber hold at once?\u003c\/h3\u003e\u003cp\u003eThe 12-port flask mounting chamber holds up to twelve flasks at once. This set ships with five 120 mL dry flasks featuring straight glass joints and caps, and the chamber measures Dia. 195 × H303 mm with an 18.5 mm stopper ID.\u003c\/p\u003e\n\u003ch3\u003eWhat power supply does the DC401 require?\u003c\/h3\u003e\u003cp\u003eThe DC401 runs on AC115V 12 A or AC220V 7 A at 50\/60 Hz. Its air-cooled refrigeration system draws 400 W using R404A refrigerant.\u003c\/p\u003e\n\u003ch3\u003eWhat are the cold trap material and dimensions?\u003c\/h3\u003e\u003cp\u003eThe cold trap is a stainless steel cylinder measuring Dia. 153 × H235 mm. A Dia. 17 mm exhaust port connects to the vacuum pump.\u003c\/p\u003e\n\u003ch3\u003eHow is trap ice removed on the DC401?\u003c\/h3\u003e\u003cp\u003eTrap ice is cleared by the Hot Gas Bypass System, which refreezes and removes ice smoothly without manual scraping. Defrost runs without hand tools.\u003c\/p\u003e\n\u003ch3\u003eWhat are the external dimensions and weight of the DC401?\u003c\/h3\u003e\u003cp\u003eExternal dimensions are 300 × 450 × 920 mm (W×D×H) and weight is approximately 60 kg. Integrated casters keep the benchtop unit highly mobile. Made in Japan.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Product\",\n      \"@id\": \"https:\/\/labsupplies.com\/products\/dc401-with-12-port-flask-mounting-chamber-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-cap-dc-401a#product\",\n      \"name\": \"Yamato DC401A Dc401 With 12 Port Flask Mounting Chamber \u0026 5 Pcs. Of 120mL Dry Flask With Straight Glass Joint \u0026 Cap\",\n      \"sku\": \"DC-401A\",\n      \"mpn\": \"DC-401A\",\n      \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"Yamato Scientific\"\n      },\n      \"manufacturer\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Yamato Scientific\"\n      },\n      \"url\": \"https:\/\/labsupplies.com\/products\/dc401-with-12-port-flask-mounting-chamber-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-cap-dc-401a\",\n      \"dateModified\": \"2026-06-29\",\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"priceCurrency\": \"USD\",\n        \"price\": \"9590.00\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/labsupplies.com\/products\/dc401-with-12-port-flask-mounting-chamber-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-cap-dc-401a\",\n        \"seller\": {\n          \"@type\": \"Organization\",\n          \"name\": \"LabSupplies.com\"\n        }\n      },\n      \"image\": \"https:\/\/dl.dropboxusercontent.com\/scl\/fo\/02jn6wbbh1yhzaqkcyplw\/h\/DC401.png?rlkey=wtjo5lqeg5sku9a3506qrpssx\",\n      \"description\": \"Yamato DC401 freeze dryer: −45°C cold trap, ~4 L capacity, 12-port chamber with five 120 mL flasks, AC115V\/220V. In stock. Authorized Yamato dealer, ships from USA.\"\n    },\n    {\n      \"@type\": \"BreadcrumbList\",\n      \"itemListElement\": [\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 1,\n          \"name\": \"Home\",\n          \"item\": \"https:\/\/labsupplies.com\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 2,\n          \"name\": \"Freeze Dryer\",\n          \"item\": \"https:\/\/labsupplies.com\/collections\/freeze-dryer\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 3,\n          \"name\": \"Yamato DC401A Dc401 With 12 Port Flask Mounting Chamber \u0026 5 Pcs. Of 120mL Dry Flask With Straight Glass Joint \u0026 Cap\",\n          \"item\": \"https:\/\/labsupplies.com\/products\/dc401-with-12-port-flask-mounting-chamber-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-cap-dc-401a\"\n        }\n      ]\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What trap temperature does the Yamato DC401 reach?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The DC401 cold trap reaches −45°C. It cools from 20°C to −45°C in about 50 minutes and offers a 0.6 L dehumidifying capacity.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"How many samples can the 12-port chamber hold at once?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The 12-port flask mounting chamber holds up to twelve flasks at once. This set ships with five 120 mL dry flasks featuring straight glass joints and caps, and the chamber measures Dia. 195 × H303 mm with an 18.5 mm stopper ID.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What power supply does the DC401 require?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The DC401 runs on AC115V 12 A or AC220V 7 A at 50\/60 Hz. Its air-cooled refrigeration system draws 400 W using R404A refrigerant.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What are the cold trap material and dimensions?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The cold trap is a stainless steel cylinder measuring Dia. 153 × H235 mm. A Dia. 17 mm exhaust port connects to the vacuum pump.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"How is trap ice removed on the DC401?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Trap ice is cleared by the Hot Gas Bypass System, which refreezes and removes ice smoothly without manual scraping. Defrost runs without hand tools.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What are the external dimensions and weight of the DC401?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"External dimensions are 300 × 450 × 920 mm (W×D×H) and weight is approximately 60 kg. Integrated casters keep the benchtop unit highly mobile. Made in Japan.\"\n          }\n        }\n      ]\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Yamato Scientific","offers":[{"title":"SET","offer_id":48693455421672,"sku":"DC-401A","price":9590.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/DC401_0baaa069-0498-46eb-be24-b4f4ebe58ec1.png?v=1782751652"},{"product_id":"dc401-with-manifold-a-8-port-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-and-cap-dc-401b","title":"Yamato DC401B Freeze Dryer with 8-Port Manifold A","description":"\u003ch2\u003eYamato DC401B Freeze Dryer with 8-Port Manifold A Overview\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eYamato DC401 freeze dryer with Manifold A (8-port) and five 120 mL dry flasks\u003c\/strong\u003e is a benchtop lyophilizer with a refrigerated cold trap reaching −45°C and roughly 4 L internal capacity. LabSupplies.com, an authorized dealer, supplies this Yamato Scientific unit complete with straight-glass-joint flasks and caps for direct, sample-ready drying.\u003c\/p\u003e\u003cp\u003eA cylindrical stainless steel trap (Dia. 153 × H235 mm) anchors the system, paired with a Pirani vacuum gauge for pressure monitoring. The Hot Gas Bypass System refreezes and removes ice without manual scraping. Automatic safety vacuum venting blocks oil backflow during power-off or power failure, keeping the dried product contaminant-free.\u003c\/p\u003e\u003cp\u003eAir cooling rated at 400 W drives the R404A refrigeration circuit (300 g ±5 g). Power runs on AC115V 12 A or AC220V 7 A (50\/60 Hz). The cabinet measures 300 × 450 × 920 mm, weighs about 60 kg, rolls on casters, and is made in Japan.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e−45°C cold trap:\u003c\/strong\u003e stainless steel cylindrical trap reaches minimum temperature in about 50 minutes from 20°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8-port Manifold A:\u003c\/strong\u003e drying chamber W304 × D60 × H263 mm with 80 mm port pitch, supplied with five 120 mL dry flasks (straight glass joint and cap).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHot Gas Bypass defrost:\u003c\/strong\u003e ice is refrozen and removed smoothly, eliminating manual scraping between runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContaminant-free venting:\u003c\/strong\u003e automatic safety vacuum venting prevents oil backflow on power-off or power failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePirani vacuum gauge:\u003c\/strong\u003e integrated pressure readout with a Dia. 17 mm exhaust port for vacuum pump connection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMobile benchtop build:\u003c\/strong\u003e caster-mounted cabinet, ~60 kg, with layered safety devices including an electric leakage breaker and back-flow prevention valve.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Choose the Right Freeze Dryer\u003c\/h2\u003e\u003cp\u003eSelecting a benchtop lyophilizer means matching trap temperature, capacity, and collection format to your sample chemistry and throughput. Use these axes to scope the right unit .\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrap temperature:\u003c\/strong\u003e a −45°C cold trap suits aqueous and water-based samples; lower-eutectic solvents may need colder traps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e weigh dehumidifying capacity (0.6 L) and internal volume (~4 L) against your batch sizes and run frequency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollection format:\u003c\/strong\u003e manifold drying with glass flasks fits multiple small batches; confirm port count and flask volume match your sample mix.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e verify your site supports AC115V 12 A or AC220V 7 A (50\/60 Hz) before specifying.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootprint and mobility:\u003c\/strong\u003e check bench clearance for the 300 × 450 × 920 mm cabinet; casters allow relocation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety and uptime:\u003c\/strong\u003e features like Hot Gas Bypass defrost and automatic vacuum venting reduce manual handling and protect samples.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eGlass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eBenchtop freeze dryer with refrigerated cold trap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrap Cooling Temperature\u003c\/td\u003e\n\u003ctd\u003e-45°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTime to Reach Minimum Temperature\u003c\/td\u003e\n\u003ctd\u003e50 min (20°C to -45°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDehumidifying Capacity\u003c\/td\u003e\n\u003ctd\u003e0.6 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Capacity\u003c\/td\u003e\n\u003ctd\u003e~4 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigeration System\u003c\/td\u003e\n\u003ctd\u003eAir cooling, 400 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRefrigerant\u003c\/td\u003e\n\u003ctd\u003eR404A (300 g ±5 g)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVacuum Gauge\u003c\/td\u003e\n\u003ctd\u003ePirani vacuum gauge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrap Defrost\u003c\/td\u003e\n\u003ctd\u003eHot Gas Bypass System (ice refrozen and removed smoothly without manual scraping)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContaminant-Free System\u003c\/td\u003e\n\u003ctd\u003eAutomatic safety vacuum venting prevents oil backflow on power-off or power failure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrap Material \/ Shape\u003c\/td\u003e\n\u003ctd\u003eCylinder, stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrap Dimensions\u003c\/td\u003e\n\u003ctd\u003eDia. 153 × H235 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExhaust Port\u003c\/td\u003e\n\u003ctd\u003eDia. 17 mm (vacuum pump connection)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Ambient Temperature\u003c\/td\u003e\n\u003ctd\u003e5°C to 30°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Devices\u003c\/td\u003e\n\u003ctd\u003eElectric leakage breaker with overcurrent protection, refrigerator overload relay, back-flow prevention valve, safety valve linked with vacuum-pump service receptacle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrain\u003c\/td\u003e\n\u003ctd\u003eVacuum hose with stopper\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMobility\u003c\/td\u003e\n\u003ctd\u003eHighly mobile on casters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExternal Dimensions (W×D×H)\u003c\/td\u003e\n\u003ctd\u003e300 × 450 × 920 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~60 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Accessories\u003c\/td\u003e\n\u003ctd\u003eVacuum silicone grease, vacuum hose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrying Chamber\u003c\/td\u003e\n\u003ctd\u003eManifold A, 8-port (W304 × D60 × H263 mm; 80 mm port pitch)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Glassware\u003c\/td\u003e\n\u003ctd\u003e5 × 120 mL dry flasks with straight glass joint and cap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Source\u003c\/td\u003e\n\u003ctd\u003eAC115V 12 A \/ AC220V 7 A (50\/60 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAvailable Sizes and Configurations\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003eConfiguration\u003c\/th\u003e\n\u003cth\u003ePack\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC-401B\u003c\/td\u003e\n\u003ctd\u003eSET\u003c\/td\u003e\n\u003ctd\u003eSET\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eDocumentation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.yamato-usa.com\/web\/content\/15346\" target=\"_blank\" rel=\"noopener\"\u003eProduct Brochure\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.yamato-usa.com\/shop\/yamato-dc401-pirani-vacuum-gauge-freeze-dryer-41\" target=\"_blank\" rel=\"noopener\"\u003eYamato Scientific Official Product Page\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eMore in This Series\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/freeze-dryer-with-refrigerated-cold-trap-main-unit-4l-trap-cooling-temp-45-c-dc-401\"\u003eFreeze Dryer With Refrigerated Cold Trap Main Unit 4L . Trap Cooling Temp. -45°C\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/dc401-with-12-port-flask-mounting-chamber-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-cap-dc-401a\"\u003eDc401 With 12 Port Flask Mounting Chamber \u0026amp; 5 Pcs. Of 120mL Dry Flask With Straight Glass Joint \u0026amp; Cap\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Buy From LabSupplies.com\u003c\/h2\u003e\u003cp\u003eLabSupplies.com is an authorized Yamato Scientific dealer, delivering a genuine DC401 freeze dryer backed by full manufacturer warranty. Order directly and ship from USA inventory.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized Yamato dealer:\u003c\/strong\u003e genuine unit with manufacturer warranty intact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn stock:\u003c\/strong\u003e ready to ship from USA inventory.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLab-equipment specialists:\u003c\/strong\u003e dedicated team for technical and specification questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat trap temperature does the Yamato DC401 reach?\u003c\/h3\u003e\u003cp\u003eThe DC401 cold trap reaches −45°C. It cools from 20°C to −45°C in approximately 50 minutes, supporting reliable vapor collection for aqueous samples.\u003c\/p\u003e\n\u003ch3\u003eWhat capacity and dimensions does the DC401 offer?\u003c\/h3\u003e\u003cp\u003eThe DC401 provides a dehumidifying capacity of 0.6 L and roughly 4 L internal capacity. Its stainless steel trap measures Dia. 153 × H235 mm, and the cabinet is 300 × 450 × 920 mm.\u003c\/p\u003e\n\u003ch3\u003eWhat power supply does the DC401 require?\u003c\/h3\u003e\u003cp\u003eThe DC401 operates on AC115V 12 A or AC220V 7 A at 50\/60 Hz. Confirm your site circuit matches the configuration you order before installation.\u003c\/p\u003e\n\u003ch3\u003eWhat glassware is included with this configuration?\u003c\/h3\u003e\u003cp\u003eThis configuration includes Manifold A, an 8-port drying chamber (W304 × D60 × H263 mm, 80 mm port pitch), plus five 120 mL dry flasks with straight glass joint and cap. Vacuum silicone grease and a vacuum hose are also supplied.\u003c\/p\u003e\n\u003ch3\u003eHow does the DC401 handle defrosting and contamination?\u003c\/h3\u003e\u003cp\u003eThe DC401 uses a Hot Gas Bypass System that refreezes and removes ice without manual scraping. Automatic safety vacuum venting prevents oil backflow on power-off or power failure, protecting the dried product.\u003c\/p\u003e\n\u003ch3\u003eWhere is the Yamato DC401 manufactured?\u003c\/h3\u003e\u003cp\u003eThe DC401 is made in Japan. It ships from LabSupplies.com USA inventory as an authorized Yamato Scientific dealer, with manufacturer warranty included.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@graph\": [\n    {\n      \"@type\": \"Product\",\n      \"@id\": \"https:\/\/labsupplies.com\/products\/dc401-with-manifold-a-8-port-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-and-cap-dc-401b#product\",\n      \"name\": \"Yamato DC401B Dc401 With Manifold A (8 Port) \u0026 5 Pcs. Of 120mL Dry Flask With Straight Glass Joint And Cap\",\n      \"sku\": \"DC-401B\",\n      \"mpn\": \"DC-401B\",\n      \"brand\": {\n        \"@type\": \"Brand\",\n        \"name\": \"Yamato Scientific\"\n      },\n      \"manufacturer\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Yamato Scientific\"\n      },\n      \"url\": \"https:\/\/labsupplies.com\/products\/dc401-with-manifold-a-8-port-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-and-cap-dc-401b\",\n      \"dateModified\": \"2026-06-29\",\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"priceCurrency\": \"USD\",\n        \"price\": \"9345.00\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/labsupplies.com\/products\/dc401-with-manifold-a-8-port-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-and-cap-dc-401b\",\n        \"seller\": {\n          \"@type\": \"Organization\",\n          \"name\": \"LabSupplies.com\"\n        }\n      },\n      \"image\": \"https:\/\/dl.dropboxusercontent.com\/scl\/fo\/02jn6wbbh1yhzaqkcyplw\/h\/DC401.png?rlkey=wtjo5lqeg5sku9a3506qrpssx\",\n      \"description\": \"Yamato DC401 benchtop freeze dryer: −45°C cold trap, ~4 L capacity, 8-port Manifold A with five 120 mL flasks. In stock. Authorized Yamato dealer, ships from USA.\"\n    },\n    {\n      \"@type\": \"BreadcrumbList\",\n      \"itemListElement\": [\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 1,\n          \"name\": \"Home\",\n          \"item\": \"https:\/\/labsupplies.com\/\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 2,\n          \"name\": \"Freeze Dryer\",\n          \"item\": \"https:\/\/labsupplies.com\/collections\/freeze-dryer\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 3,\n          \"name\": \"Yamato DC401B Dc401 With Manifold A (8 Port) \u0026 5 Pcs. Of 120mL Dry Flask With Straight Glass Joint And Cap\",\n          \"item\": \"https:\/\/labsupplies.com\/products\/dc401-with-manifold-a-8-port-5-pcs-of-120ml-dry-flask-with-straight-glass-joint-and-cap-dc-401b\"\n        }\n      ]\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What trap temperature does the Yamato DC401 reach?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The DC401 cold trap reaches −45°C. It cools from 20°C to −45°C in approximately 50 minutes, supporting reliable vapor collection for aqueous samples.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What capacity and dimensions does the DC401 offer?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The DC401 provides a dehumidifying capacity of 0.6 L and roughly 4 L internal capacity. Its stainless steel trap measures Dia. 153 × H235 mm, and the cabinet is 300 × 450 × 920 mm.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What power supply does the DC401 require?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The DC401 operates on AC115V 12 A or AC220V 7 A at 50\/60 Hz. Confirm your site circuit matches the configuration you order before installation.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What glassware is included with this configuration?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"This configuration includes Manifold A, an 8-port drying chamber (W304 × D60 × H263 mm, 80 mm port pitch), plus five 120 mL dry flasks with straight glass joint and cap. Vacuum silicone grease and a vacuum hose are also supplied.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"How does the DC401 handle defrosting and contamination?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The DC401 uses a Hot Gas Bypass System that refreezes and removes ice without manual scraping. Automatic safety vacuum venting prevents oil backflow on power-off or power failure, protecting the dried product.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Where is the Yamato DC401 manufactured?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The DC401 is made in Japan. It ships from LabSupplies.com USA inventory as an authorized Yamato Scientific dealer, with manufacturer warranty included.\"\n          }\n        }\n      ]\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Yamato Scientific","offers":[{"title":"SET","offer_id":48693455454440,"sku":"DC-401B","price":9345.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/DC401_5b12e031-b739-4c79-add5-5ad744ff8a36.png?v=1782751663"}],"url":"https:\/\/labsupplies.com\/collections\/laboratory-freeze-dryers.oembed","provider":"LabSupplies.com","version":"1.0","type":"link"}