{"product_id":"high-performance-muffle-furnace-7-5l-fp-303","title":"Yamato FP303 High Performance Muffle Furnace 7.5L","description":"\u003ch2\u003eHigh Performance Muffle Furnace 7.5L Overview\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eHigh Performance Muffle Furnace 7.5L\u003c\/strong\u003e (model FP303) is a microprocessor-controlled muffle furnace from Yamato Scientific, available through LabSupplies.com as an authorized dealer. Its 7.5-liter chamber operates from 100 to 1150°C with ±1.0°C accuracy, supporting ashing, sintering, and heat-treatment work. Repeatable results come from a high-accuracy PID controller built for clear operability and visibility.\u003c\/p\u003e\u003cp\u003eAn alumina porcelain hot plate keeps the iron-chrome heater out of the chamber, preventing sample contamination. Ceramic fiber insulation lines the furnace body and door, while a firmly sealed chamber door delivers excellent heat tightness. Exterior panels use cold-rolled steel finished with baked melamine resin, and upgraded R-thermocouple sensors extend service life over standard sensors.\u003c\/p\u003e\u003cp\u003eProgrammable operation covers up to 99 steps and 99 patterns with a repeat function. Safety devices include self-diagnostics, key lock, independent overheat prevention, and an electric leakage breaker. The unit ships from Japan, weighs 174 lbs, and carries ISO 9001:2015 and ISO 14001:2015 certification. Voltage options cover 115V and 220V.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh temperature accuracy:\u003c\/strong\u003e microprocessor PID control holds ±1.0°C at 1150°C for repeatable runs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContamination-resistant heating:\u003c\/strong\u003e alumina porcelain hot plate shields the iron-chrome heater from the chamber, protecting samples.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-life sensing:\u003c\/strong\u003e upgraded R-thermocouple sensors improve durability and measurement stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProgram operation:\u003c\/strong\u003e up to 99 steps across 99 patterns with a repeat-operation function for multi-stage profiles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealed chamber:\u003c\/strong\u003e firmly sealed door provides excellent heat tightness across the 100 to 1150°C range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated safety:\u003c\/strong\u003e self-diagnostics, key lock, independent overheat prevention, and electric leakage breaker.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Choose the Right Muffle Furnace\u003c\/h2\u003e\u003cp\u003eSelecting a muffle furnace starts with matching chamber size, temperature ceiling, and control type to your workflow. Use the criteria below to confirm the FP303 fits your ashing, sintering, or heat-treatment application.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e the 7.5 L chamber (200 × 250 × 150 mm interior) sets how many crucibles or samples you can process per batch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature range:\u003c\/strong\u003e a 100 to 1150°C span covers most ashing and high-temperature laboratory work; verify your process stays inside it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl type:\u003c\/strong\u003e microprocessor PID with ±1.0°C accuracy and 99-step programming suits multi-stage profiles that fixed-setpoint units cannot run.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage:\u003c\/strong\u003e confirm your site supplies 115V or 220V to match the model you order; the 2.4 kW heater requires an adequate dedicated circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootprint and weight:\u003c\/strong\u003e at 174 lbs and a 36 × 36 × 35 in shipping size, plan bench space and handling before delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety devices:\u003c\/strong\u003e independent overheat prevention, key lock, and an electric leakage breaker matter for unattended high-temperature runs.\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\u003e7.5 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\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003e100 to 1150°C \u003csup\u003e*1\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd\u003e±1.0°C (at 1150°C) \u003csup\u003e*2\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Distribution\u003c\/td\u003e\n\u003ctd\u003e±4.0°C (at 1150°C) \u003csup\u003e*2\u003c\/sup\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperature Gradient\u003c\/td\u003e\n\u003ctd\u003e14°C (at 1150°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\u003eSensor\u003c\/td\u003e\n\u003ctd\u003eR-thermocouple\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterior Material\u003c\/td\u003e\n\u003ctd\u003eAlumina fiber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExterior Material\u003c\/td\u003e\n\u003ctd\u003eCold-rolled steel plate with baked melamine resin finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperation Function\u003c\/td\u003e\n\u003ctd\u003eFixed temperature, quick auto stop, auto start\/stop, program (up to 99 steps \/ 99 patterns)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Devices\u003c\/td\u003e\n\u003ctd\u003eSelf-diagnostic (sensor error, heater disconnection, triac short-circuit, main relay failure, automatic overheat prevention); key lock; independent overheat prevention; electric leakage breaker\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeater\u003c\/td\u003e\n\u003ctd\u003eIron-chrome wire, 2.4 kW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInternal Dimensions\u003c\/td\u003e\n\u003ctd\u003e200 × 250 × 150 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eSteel plate, melamine, epoxy composite resin paint, stainless steel (main unit)\nCeramic fiber (furnace body, door furnace body)\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\u003e797059930753\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e174 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e36 × 36 × 35 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComponent Size\u003c\/td\u003e\n\u003ctd\u003e7.5 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. \u003csup\u003e*2\u003c\/sup\u003e Measured under ambient temperature 23°C ±5°C, humidity 65%RH ±20%, per Yamato Scientific test 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\u003eFP-303\u003c\/td\u003e\n\u003ctd\u003e115V\u003c\/td\u003e\n\u003ctd\u003eEA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFP-313\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\/g80e8so67jw1w54\/FP%20Series%20Muffle%20Furnace.pdf?dl=1\" 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=1\" target=\"_blank\" rel=\"noopener\"\u003eISO 14001\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.yamato-usa.com\/shop\/yamato-fp-series-high-performance-programmable-muffle-furnaces-119?category=61#attr=317\" 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\/high-performance-muffle-furnace-1-5l-fp-103\"\u003eHigh Performance Muffle Furnace 1.5L\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/high-performance-muffle-furnace-11-3l-fp-413\"\u003eHigh Performance Muffle Furnace 11.3L\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/muffle-furnace-with-communication-port-30l-fo-811cr\"\u003eMuffle Furnace With Communication Port 30L\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/muffle-furnace-with-communication-port-23-6l-fo-711cr\"\u003eMuffle Furnace With Communication Port 23.6L\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/muffle-furnace-with-communication-port-17-5l-fo-611cr\"\u003eMuffle Furnace With Communication Port 17.5L\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/muffle-furnace-with-communication-port-11-3l-fo-511cr\"\u003eMuffle Furnace With Communication Port 11.3L\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/laboratory-muffle-furnaces\"\u003eView all Laboratory Muffle Furnaces →\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eWhy Buy From LabSupplies.com\u003c\/h2\u003e\u003cp\u003eOrder the FP303 muffle furnace directly from LabSupplies.com and receive a genuine Yamato Scientific unit backed by manufacturer support. Our lab-equipment specialists can answer spec and configuration questions before you place the order.\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 order without waiting on backorder cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShips from USA inventory:\u003c\/strong\u003e domestic fulfillment for faster delivery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialist support:\u003c\/strong\u003e dedicated lab-equipment team 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 FP303 muffle furnace?\u003c\/h3\u003e\u003cp\u003eThe FP303 operates from 100 to 1150°C. It holds ±1.0°C temperature accuracy at 1150°C using microprocessor PID control, with a temperature distribution of ±4.0°C and a gradient of 14°C at that ceiling.\u003c\/p\u003e\n\u003ch3\u003eHow large is the chamber and what are the interior dimensions?\u003c\/h3\u003e\u003cp\u003eThe chamber capacity is 7.5 liters, with interior dimensions of 200 × 250 × 150 mm. This sizing determines how many crucibles or samples you can process per batch.\u003c\/p\u003e\n\u003ch3\u003eWhat voltage options are available?\u003c\/h3\u003e\u003cp\u003eTwo voltage options are offered: model FP303 runs on 115V and model FP313 runs on 220V. Both share identical performance and features; only the input voltage differs. The unit uses a 2.4 kW iron-chrome heater.\u003c\/p\u003e\n\u003ch3\u003eHow does the FP303 protect samples from contamination?\u003c\/h3\u003e\u003cp\u003eA high-quality alumina porcelain hot plate keeps the iron-chrome heater from being exposed to the inner chamber, preventing sample contamination. Ceramic fiber lines the furnace body and door for insulation and heat tightness.\u003c\/p\u003e\n\u003ch3\u003eWhat safety features are included?\u003c\/h3\u003e\u003cp\u003eSafety devices include self-diagnostic functions covering sensor error, heater disconnection, triac short-circuit, main relay failure, and automatic overheat prevention. Additional protection includes a key lock, independent overheat prevention, and an electric leakage breaker.\u003c\/p\u003e\n\u003ch3\u003eCan the FP303 run multi-stage temperature programs?\u003c\/h3\u003e\u003cp\u003eYes. The microprocessor controller supports program operation of up to 99 steps across 99 patterns, plus a repeat-operation function. It also offers fixed-temperature, quick auto stop, and auto start\/stop modes.\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\/high-performance-muffle-furnace-7-5l-fp-303#product\",\n      \"name\": \"Yamato FP303 High Performance Muffle Furnace 7.5L\",\n      \"sku\": \"FP-303\",\n      \"mpn\": \"FP-303\",\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\/high-performance-muffle-furnace-7-5l-fp-303\",\n      \"dateModified\": \"2026-06-29\",\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"priceCurrency\": \"USD\",\n        \"price\": \"9275.00\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/labsupplies.com\/products\/high-performance-muffle-furnace-7-5l-fp-303\",\n        \"seller\": {\n          \"@type\": \"Organization\",\n          \"name\": \"LabSupplies.com\"\n        }\n      },\n      \"gtin12\": \"797059930753\",\n      \"image\": \"https:\/\/dl.dropboxusercontent.com\/scl\/fo\/02jn6wbbh1yhzaqkcyplw\/h\/FP303.png?rlkey=wtjo5lqeg5sku9a3506qrpssx\",\n      \"description\": \"Yamato FP303 7.5L muffle furnace, 100–1150°C with ±1.0°C PID control and 99-step programming. 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\": \"Muffle Furnace\",\n          \"item\": \"https:\/\/labsupplies.com\/collections\/muffle-furnace\"\n        },\n        {\n          \"@type\": \"ListItem\",\n          \"position\": 3,\n          \"name\": \"Yamato FP303 High Performance Muffle Furnace 7.5L\",\n          \"item\": \"https:\/\/labsupplies.com\/products\/high-performance-muffle-furnace-7-5l-fp-303\"\n        }\n      ]\n    },\n    {\n      \"@type\": \"FAQPage\",\n      \"mainEntity\": [\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What is the temperature range of the FP303 muffle furnace?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The FP303 operates from 100 to 1150°C. It holds ±1.0°C temperature accuracy at 1150°C using microprocessor PID control, with a temperature distribution of ±4.0°C and a gradient of 14°C at that ceiling.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"How large is the chamber and what are the interior dimensions?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"The chamber capacity is 7.5 liters, with interior dimensions of 200 × 250 × 150 mm. This sizing determines how many crucibles or samples you can process per batch.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What voltage options are available?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Two voltage options are offered: model FP303 runs on 115V and model FP313 runs on 220V. Both share identical performance and features; only the input voltage differs. The unit uses a 2.4 kW iron-chrome heater.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"How does the FP303 protect samples from contamination?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"A high-quality alumina porcelain hot plate keeps the iron-chrome heater from being exposed to the inner chamber, preventing sample contamination. Ceramic fiber lines the furnace body and door for insulation and heat tightness.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"What safety features are included?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Safety devices include self-diagnostic functions covering sensor error, heater disconnection, triac short-circuit, main relay failure, and automatic overheat prevention. Additional protection includes a key lock, independent overheat prevention, and an electric leakage breaker.\"\n          }\n        },\n        {\n          \"@type\": \"Question\",\n          \"name\": \"Can the FP303 run multi-stage temperature programs?\",\n          \"acceptedAnswer\": {\n            \"@type\": \"Answer\",\n            \"text\": \"Yes. The microprocessor controller supports program operation of up to 99 steps across 99 patterns, plus a repeat-operation function. It also offers fixed-temperature, quick auto stop, and auto start\/stop modes.\"\n          }\n        }\n      ]\n    }\n  ]\n}\n\u003c\/script\u003e","brand":"Yamato Scientific","offers":[{"title":"115V","offer_id":48688114008296,"sku":"FP-303","price":9275.0,"currency_code":"USD","in_stock":true},{"title":"220V","offer_id":48688114041064,"sku":"FP-313","price":9275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/5361\/1240\/files\/FP303.png?v=1782518978","url":"https:\/\/labsupplies.com\/products\/high-performance-muffle-furnace-7-5l-fp-303","provider":"LabSupplies.com","version":"1.0","type":"link"}