{"product_id":"laboratory-stirrer-digital-main-body-only-10-300-rpm-lt-400a","title":"Yamato LT400A Laboratory Stirrer Digital Main Body Only 10~300 rpm","description":"\u003ch2\u003eYamato LT400A Laboratory Stirrer Digital Main Body Only 10~300 rpm Overview\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eYamato LT-400A digital laboratory stirrer\u003c\/strong\u003e is an overhead mixer built for high-viscosity samples, running from 10–300 rpm on a gearless direct-drive, 30 W DC brushless motor. Its speed-feedback control holds the set speed even as sample viscosity changes during a run, so mixing stays consistent from the start of a batch to the end.\u003c\/p\u003e\u003cp\u003eMaximum torque is 0.9 N·m (9.0 kgf·cm). A 3-digit digital display reads out set speed while an LED torque\/overload indicator shows loading at a glance, and overload stop, a current-limit circuit, and thermal motor protection safeguard both the drive and your sample. The ø10 mm chuck accepts standard Yamato stirring shafts. The main body ships with a ø10 × 500 mm stirring shaft, 4-blade propeller, and clamp; add a Yamato stand and support rod to complete a bench setup, or order the matching \u003cstrong\u003eLT-400AA\u003c\/strong\u003e set that bundles the stand and rod.\u003c\/p\u003e\n\u003ch2\u003eHow to Choose the Right LT Stirrer\u003c\/h2\u003e\u003cp\u003eAcross the Yamato LT series, the model letter sets the balance between speed and torque — higher top speeds trade off maximum torque, so match the model to your sample:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSample viscosity:\u003c\/strong\u003e this LT-400A is rated for high-viscosity samples (0.9 N·m (9.0 kgf·cm) maximum torque).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed range:\u003c\/strong\u003e 10–300 rpm — confirm your process rpm falls inside this band.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft \u0026amp; vessel:\u003c\/strong\u003e the ø10 mm chuck takes standard Yamato shafts; size the propeller to your vessel.\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\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e115V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Range\u003c\/td\u003e\n\u003ctd\u003e10–300 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Torque\u003c\/td\u003e\n\u003ctd\u003e0.9 N·m (9.0 kgf·cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eDC brushless, 30 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSample Viscosity\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDigital overhead laboratory stirrer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Control\u003c\/td\u003e\n\u003ctd\u003eSpeed feedback control — maintains set speed despite viscosity change\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDisplay\u003c\/td\u003e\n\u003ctd\u003eDigital 3-digit speed display with LED torque\/overload indicator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Devices\u003c\/td\u003e\n\u003ctd\u003eOverload stop; current-limit circuit and thermal motor protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrive\u003c\/td\u003e\n\u003ctd\u003eGearless direct drive, ø10 mm shaft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Accessories\u003c\/td\u003e\n\u003ctd\u003eStirring shaft (ø10 × 500 mm), 75 mm 4-blade propeller, clamp\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\u003eLT-400A\u003c\/td\u003e\n\u003ctd\u003eEA\u003c\/td\u003e\n\u003ctd\u003eEA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eMore in This Series\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/laboratory-stirrer-digital-main-body-only-15-600-rpm-lt-400b\"\u003eLaboratory Stirrer Digital Main Body Only 15~600 rpm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/laboratory-stirrer-digital-main-body-only-25-1200-rpm-lt-400c\"\u003eLaboratory Stirrer Digital Main Body Only 25~1200 rpm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/laboratory-stirrer-digital-main-body-only-15-600-rpm-lt-500a\"\u003eLaboratory Stirrer Digital Main Body Only 15~600 rpm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/laboratory-stirrer-digital-main-body-only-25-1200-rpm-lt-500b\"\u003eLaboratory Stirrer Digital Main Body Only 25~1200 rpm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/strong-magnetic-stirrer-50-to-1600-rpm-mfd-800\"\u003eStrong Magnetic Stirrer, 50 To 1600 rpm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lt-400a-set-main-body-stand-rod-stainless-steel-shaft-and-60mm-4-blade-propeller-lt-400aa\"\u003eLT-400A Set Main Body, Stand, Rod, Stainless Steel Shaft And 60mm 4-Blade Propeller\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"\/collections\/laboratory-stirrers\"\u003eView all Laboratory Stirrers →\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eOrdering\u003c\/h2\u003e\u003cp\u003eAuthorized dealer, ships from USA inventory. Serving academic, government, and research laboratories nationwide.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat sample viscosity is the LT-400A best suited to?\u003c\/h3\u003e\u003cp\u003eThe LT-400A is rated for high-viscosity samples, delivering 0.9 N·m (9.0 kgf·cm) of maximum torque across a 10–300 rpm range. For markedly higher-viscosity work, choose a higher-torque LT model.\u003c\/p\u003e\n\u003ch3\u003eDoes the stirrer keep a constant speed as my sample thickens?\u003c\/h3\u003e\u003cp\u003eYes. Speed-feedback control continuously adjusts the motor to hold the set rpm even as viscosity rises during a run, and the 3-digit display plus LED torque indicator let you monitor loading.\u003c\/p\u003e\n\u003ch3\u003eWhat is included, and what do I need to add?\u003c\/h3\u003e\u003cp\u003eThe main body ships with a ø10 × 500 mm stirring shaft, 4-blade propeller, and clamp. To run it on the bench, add a Yamato stand and support rod — or order the LT-400AA set, which bundles the stand and rod.\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\/laboratory-stirrer-digital-main-body-only-10-300-rpm-lt-400a#product\",\n \"name\": \"Yamato LT400A Laboratory Stirrer Digital Main Body Only 10~300 rpm\",\n \"sku\": \"LT-400A\",\n \"mpn\": \"LT-400A\",\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\/laboratory-stirrer-digital-main-body-only-10-300-rpm-lt-400a\",\n \"dateModified\": \"2026-06-29\",\n \"offers\": {\n \"@type\": \"Offer\",\n \"priceCurrency\": \"USD\",\n \"price\": \"1225.00\",\n \"availability\": \"https:\/\/schema.org\/InStock\",\n \"url\": \"https:\/\/labsupplies.com\/products\/laboratory-stirrer-digital-main-body-only-10-300-rpm-lt-400a\",\n \"seller\": {\n \"@type\": \"Organization\",\n \"name\": \"LabSupplies.com\"\n }\n },\n \"image\": \"https:\/\/dl.dropboxusercontent.com\/scl\/fo\/02jn6wbbh1yhzaqkcyplw\/h\/LT.png?rlkey=wtjo5lqeg5sku9a3506qrpssx\",\n \"description\": \"Yamato LT-400A digital overhead lab stirrer, 10–300 rpm, 0.9 N·m torque. 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