{"product_id":"natural-convection-dry-sterilizer-99l-sk-401","title":"Yamato SK401 Natural Convection Dry Sterilizer 99L","description":"\u003ch2\u003eNatural Convection Dry Sterilizer 99L Overview\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eNatural Convection Dry Sterilizer 99L\u003c\/strong\u003e (model SK401) is a programmable dry-heat sterilizer from Yamato Scientific, supplied by LabSupplies.com as an authorized dealer. This autoclave-class unit pairs a 99 L chamber with an ambient +5 to 260°C operating range, giving labs reliable dry-heat processing of glassware, metal instruments, and heat-stable materials.\u003c\/p\u003e\u003cp\u003eConstruction uses a stainless steel interior chamber for cleanability and corrosion resistance. Exterior panels are chrome-free electrogalvanized carbon steel finished with a chemical-proof baked-on coating. An independent overheat prevention device works alongside the main controller to guard the chamber against runaway temperatures.\u003c\/p\u003e\u003cp\u003eTwo voltage configurations are offered, 115V and 220V, so the sterilizer matches your facility power. Each unit measures 36 × 36 × 42 in and weighs 195 lbs, requiring a stable bench or floor footprint. Manufactured in Japan, the SK401 is backed by Yamato's ISO 9001:2015 and ISO 14001:2015 certified production.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgrammable control:\u003c\/strong\u003e store up to 99 steps and 99 patterns with repeat operation for reproducible sterilization cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndependent overheat prevention:\u003c\/strong\u003e a dedicated safety device protects the chamber separately from the primary controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-precision controller:\u003c\/strong\u003e improved display visibility and operability with calibration off-set, lock function, and power recovery mode.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperational monitoring:\u003c\/strong\u003e tracks power-on and operation time accumulation, calendar time, accumulated power consumption, total CO₂ emission, and heat output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperator data management:\u003c\/strong\u003e save and access operator setting information directly from the controller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eData collection port:\u003c\/strong\u003e integrated cable port simplifies sample data capture for documentation and validation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Choose the Right Sterilizer \/ Autoclave\u003c\/h2\u003e\u003cp\u003eSelecting a dry-heat sterilizer comes down to matching chamber size, temperature capability, control sophistication, and site power to your throughput and validation needs. Use these axes to confirm the SK401 fits your workflow.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e a 99 L chamber suits labs processing batches of glassware or instruments; size the chamber to your largest routine load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e an ambient +5 to 260°C span covers standard dry-heat sterilization and depyrogenation-style protocols requiring sustained high heat.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl type:\u003c\/strong\u003e programmable storage of 99 steps and 99 patterns benefits labs running multiple validated recipes versus single-setpoint use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e confirm whether your facility supplies 115V or 220V before ordering, since the model is offered in both.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootprint and weight:\u003c\/strong\u003e verify bench or floor space for the 36 × 36 × 42 in cabinet and its 195 lb mass.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety and documentation:\u003c\/strong\u003e an independent overheat prevention device and data cable port support both protection and record-keeping requirements.\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\u003e99 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Temperature\u003c\/td\u003e\n\u003ctd\u003e260°C\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\u003eSystem\u003c\/td\u003e\n\u003ctd\u003eAutomatic high-pressure steam sterilizer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003e50 to 126°C \u003csup\u003e*1\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax. Operating Pressure\u003c\/td\u003e\n\u003ctd\u003e0.142 MPa (at 126°C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Control System\u003c\/td\u003e\n\u003ctd\u003ePID control by microprocessor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior Material\u003c\/td\u003e\n\u003ctd\u003eStainless steel (SUS304)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater\u003c\/td\u003e\n\u003ctd\u003e2000 W stainless steel pipe heater\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Devices\u003c\/td\u003e\n\u003ctd\u003eWater-level detection (liquid-expansion); safety valve (0.165 MPa); safety interlock; spring full-lift safety valve\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Accessories\u003c\/td\u003e\n\u003ctd\u003eStainless steel rack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eChrome  free  electrogalvanized  carbon  steel,  sheet  coated w\/chemical-proof baked-on finish (exterior)\nStainless steel (interior)\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\u003eGTIN (Barcode)\u003c\/td\u003e\n\u003ctd\u003e797059930845\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e195 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e36 × 36 × 42 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Size\u003c\/td\u003e\n\u003ctd\u003e99 L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003csmall\u003e\u003csup\u003e*1\u003c\/sup\u003e No-load operation of bath only; maximum temperature varies with circumstances and operating conditions.\u003c\/small\u003e\u003c\/p\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\u003eSK-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\u003eSK-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.dropbox.com\/s\/ks2w1bmrooul7qf\/SK%20Series%20Dry%20Sterilizer.pdf?dl=0\" target=\"_blank\" rel=\"noopener\"\u003eProduct Brochure\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dropbox.com\/s\/0hq2208jf4gq010\/YLT%20ISO9001%20ENG%20%28EXP%20FEB%202022%29.pdf?dl=0\" target=\"_blank\" rel=\"noopener\"\u003eISO 9001\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.dropbox.com\/s\/9qrf1gfsvoeiea4\/YLT%20ISO14001%20ENG%20%28Ex%20June%2026%202023%29%20%E8%8B%B1%E6%96%87%E8%AA%8D%E8%A8%BC%E6%9C%89%E5%8A%B9%E6%9C%9F%E9%99%90.pdf?dl=4\" target=\"_blank\" rel=\"noopener\"\u003eISO 14001\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.yamato-usa.com\/shop\/yamato-sk-series-natural-forced-convection-dry-sterilizers-126?category=64#attr=514\" 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\/compact-sterilizer-24l-sk-201c\"\u003eCompact Sterilizer 24L\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/natural-convection-dry-sterilizer-162l-sk-601\"\u003eNatural Convection Dry Sterilizer 162L\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/compact-sterilizer-30l-sk-301c\"\u003eCompact Sterilizer 30L\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/compact-sterilizer-18l-sk-102c\"\u003eCompact Sterilizer 18L\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sterilizer-with-dryer-20l-sm-201\"\u003eSterilizer With Dryer 20L\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sterilizer-with-dryer-32l-sm-301\"\u003eSterilizer With Dryer 32L\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/laboratory-autoclaves-sterilizers\"\u003eView all Laboratory Autoclaves \u0026amp; Sterilizers →\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eWhy Buy From LabSupplies.com\u003c\/h2\u003e\u003cp\u003eOrder the Yamato SK401 directly from LabSupplies.com and receive a genuine, manufacturer-backed unit shipped from USA inventory. Our lab-equipment specialists answer spec and configuration questions so your purchase is right the first time.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized Yamato Scientific dealer:\u003c\/strong\u003e genuine equipment 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\u003eVoltage options on hand:\u003c\/strong\u003e 115V and 220V configurations available.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialist support:\u003c\/strong\u003e dedicated lab-equipment experts for technical and spec questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the temperature range of the SK401 dry sterilizer?\u003c\/h3\u003e\u003cp\u003eThe SK401 operates from ambient +5 up to 260°C maximum. This range supports standard dry-heat sterilization of heat-stable labware and instruments.\u003c\/p\u003e\n\u003ch3\u003eWhat is the chamber capacity and overall size?\u003c\/h3\u003e\u003cp\u003eThe chamber holds 99 L. The cabinet measures 36 × 36 × 42 in (L × W × H) and weighs 195 lbs, so confirm bench or floor space before installation.\u003c\/p\u003e\n\u003ch3\u003eWhich voltage options are available?\u003c\/h3\u003e\u003cp\u003eTwo configurations are offered: 115V (SK-401-115V) and 220V (SK-401-220V). Both share the same 99 L chamber and 260°C maximum temperature; choose the option matching your facility power.\u003c\/p\u003e\n\u003ch3\u003eWhat materials are used in the chamber construction?\u003c\/h3\u003e\u003cp\u003eThe interior chamber is stainless steel for cleanability and corrosion resistance. Exterior panels are chrome-free electrogalvanized carbon steel with a chemical-proof baked-on finish.\u003c\/p\u003e\n\u003ch3\u003eIs the SK401 programmable, and what safety features does it include?\u003c\/h3\u003e\u003cp\u003eYes, it stores up to 99 steps and 99 patterns with repeat operation. An independent overheat prevention device protects the chamber separately from the main controller, and a data cable port enables sample data collection.\u003c\/p\u003e\n\u003ch3\u003eWhere is the SK401 manufactured and is it certified?\u003c\/h3\u003e\u003cp\u003eIt is manufactured in Japan. Production is backed by Yamato's ISO 9001:2015 and ISO 14001:2015 certifications.\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\/natural-convection-dry-sterilizer-99l-sk-401#product\",\n      \"name\": \"Yamato SK401 Natural Convection Dry Sterilizer 99L\",\n      \"sku\": \"SK-401\",\n      \"mpn\": \"SK-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\/natural-convection-dry-sterilizer-99l-sk-401\",\n      \"dateModified\": \"2026-06-29\",\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"priceCurrency\": \"USD\",\n        \"price\": \"4095.00\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/labsupplies.com\/products\/natural-convection-dry-sterilizer-99l-sk-401\",\n        \"seller\": {\n          \"@type\": \"Organization\",\n          \"name\": \"LabSupplies.com\"\n        }\n      },\n      \"gtin12\": \"797059930845\",\n      \"image\": \"https:\/\/dl.dropboxusercontent.com\/scl\/fo\/02jn6wbbh1yhzaqkcyplw\/h\/SK401.png?rlkey=wtjo5lqeg5sku9a3506qrpssx\",\n      \"description\": \"Yamato SK401 natural convection dry sterilizer: 99 L chamber, ambient +5 to 260°C, programmable 99-step control. 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