{"product_id":"lr-500a-set-main-body-stand-rod-stainless-steel-shaft-and-75-mm-4-blade-propeller-lr-500aa","title":"Yamato LR500AA Lr-500A Set Main Body, Stand, Rod, Stainless Steel Shaft And 75 Mm 4-Blade Propeller","description":"\u003ch2\u003eLr-500A Set Main Body, Stand, Rod, Stainless Steel Shaft And 75 Mm 4-Blade Propeller Overview\u003c\/h2\u003e\u003cp\u003eThe \u003cstrong\u003eYamato Scientific LR500A\u003c\/strong\u003e is a digital overhead laboratory stirrer engineered for high-viscosity samples, with a 34–340 rpm speed range and a complete set that includes the main body, stand, rod, stainless-steel shaft, and 75 mm 4-blade propeller. LabSupplies.com, authorized dealer, ships this unit ready for immediate bench setup.\u003c\/p\u003e\u003cp\u003eA DC brushless 70 W motor drives the gearless direct-drive system, delivering up to 1.96 N·m (20 kgf·cm) of torque through a ø10 mm shaft. Brushless construction removes spark risk and brush replacement. Direct drive keeps noise low and maintenance minimal while sustaining torque on thick media.\u003c\/p\u003e\u003cp\u003eBuilt around a stainless-steel shaft and propeller, the LR500A weighs 30 lbs and measures 24 × 18 × 18 in. Manufactured in Japan, the stirrer carries ISO 9001:2015 and ISO 14001:2015 certification. Speed feedback control holds the set rate as viscosity shifts during a run.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC brushless motor:\u003c\/strong\u003e 70 W, sparkless operation with no brushes to replace.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGearless direct drive:\u003c\/strong\u003e low-noise, low-maintenance ø10 mm shaft delivering up to 1.96 N·m torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed feedback control:\u003c\/strong\u003e maintains the set rate from 34–340 rpm despite viscosity change, suiting thick solutions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDigital display:\u003c\/strong\u003e 3-digit speed readout with an LED torque\/overload indicator for live load monitoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety protection:\u003c\/strong\u003e overload stop plus current-limit circuit and thermal motor protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete set:\u003c\/strong\u003e main body, stand, rod, stainless-steel stirring shaft (ø10 × 500 mm), 75 mm 4-blade propeller, and clamp.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eHow to Choose the Right Stirrer\u003c\/h2\u003e\u003cp\u003eSelecting an overhead stirrer comes down to matching motor torque and speed control to your sample viscosity and vessel size. Review these axes before specifying a unit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSample viscosity and torque:\u003c\/strong\u003e thick media demand high torque; the LR500A reaches 1.96 N·m for heavy mixing loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed range and control:\u003c\/strong\u003e a 34–340 rpm range with feedback control keeps the rate steady as resistance changes mid-run.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotor type:\u003c\/strong\u003e DC brushless drives avoid sparking and brush wear, an advantage for continuous duty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShaft and impeller:\u003c\/strong\u003e stainless-steel construction with a 75 mm 4-blade propeller resists corrosion and suits aqueous and many solvent samples.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety devices:\u003c\/strong\u003e overload stop and thermal protection guard the motor when load exceeds limits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFootprint and weight:\u003c\/strong\u003e verify bench space against the 24 × 18 × 18 in stand assembly and 30 lb mass.\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\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpeed Range\u003c\/td\u003e\n\u003ctd\u003e34–340 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Torque\u003c\/td\u003e\n\u003ctd\u003e1.96 N·m (20 kgf·cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor\u003c\/td\u003e\n\u003ctd\u003eDC brushless, 70 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\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eComplete set — main body with stand, rod, and stainless-steel stirring shaft\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\u003e797059928873\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e30 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (L × W × H)\u003c\/td\u003e\n\u003ctd\u003e24 × 18 × 18 in\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\u003eLR-500AA\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.dropbox.com\/s\/jf8cutdsfuthbhm\/LT%20LR%20Laboratory%20Stirrer.pdf?dl=5\" 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=152\" target=\"_blank\" rel=\"noopener\"\u003eISO 14001\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.yamato-usa.com\/shop\/yamato-lr-series-1000-rpm-laboratory-stirrers-139?category=40#attr=484\" 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\/magnetic-stirrer-with-hot-plate-x-6-300-1500-rpm-with-external-transformer-mg-600h\"\u003eMagnetic Stirrer With Hot Plate X 6 (300~1500 rpm) With External Transformer\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\/strong-magnetic-stirrer-with-hot-plate-50-to-1600-rpm-mfh-800\"\u003eStrong Magnetic Stirrer With Hot Plate, 50 To 1600 rpm\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lab-stirrer-digital-main-body-34-340-rpm-stainless-shaft-75mm-4-blade-propeller-lr-500a\"\u003eLab Stirrer Digital Main Body (34~340 rpm), Stainless Shaft \u0026amp; 75Mm 4-Blade Propeller\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lab-stirrer-digital-main-body-100-1000-rpm-stainless-shaft-75mm-4-blade-propeller-lr-500b\"\u003eLab Stirrer Digital Main Body (100~1000 rpm), Stainless Shaft \u0026amp; 75Mm 4-Blade Propeller\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lr-500b-set-main-body-stand-rod-stainless-steel-shaft-and-75-mm-4-blade-propeller-lr-500ba\"\u003eLr-500B Set Main Body, Stand, Rod, Stainless Steel Shaft And 75 Mm 4-Blade Propeller\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/laboratory-stirrer-digital-main-body-only-10-300-rpm-lt-400a\"\u003eLaboratory Stirrer Digital Main Body Only 10~300 rpm\u003c\/a\u003e\u003c\/li\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-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-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-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\/lt-400a-set-main-body-stand-rod-stainless-steel-shaft-and-60-mm-4-blade-propeller-lt-400aa\"\u003eLt-400A Set Main Body, Stand, Rod, Stainless Steel Shaft And 60 Mm 4-Blade Propeller\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lt-400b-set-main-body-stand-rod-stainless-steel-shaft-and-60-mm-4-blade-propeller-lt-400ba\"\u003eLt-400B Set Main Body, Stand, Rod, Stainless Steel Shaft And 60 Mm 4-Blade Propeller\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lt-400c-set-main-body-stand-rod-stainless-steel-shaft-and-60-mm-4-blade-propeller-lt-400ca\"\u003eLt-400C Set Main Body, Stand, Rod, Stainless Steel Shaft And 60 Mm 4-Blade Propeller\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lt-500a-set-main-body-stand-rod-stainless-steel-shaft-and-60-mm-4-blade-propeller-lt-500aa\"\u003eLt-500A Set Main Body, Stand, Rod, Stainless Steel Shaft And 60 Mm 4-Blade Propeller\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lt-500b-set-main-body-stand-rod-stainless-steel-shaft-and-60-mm-4-blade-propeller-lt-500ba\"\u003eLt-500B Set Main Body, Stand, Rod, Stainless Steel Shaft And 60 Mm 4-Blade Propeller\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/stand-and-rod-set-for-lr-lt400-500-lr-41-124\"\u003eStand And Rod Set For Lr\/Lt400\/500\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhy Buy From LabSupplies.com\u003c\/h2\u003e\u003cp\u003eLabSupplies.com supplies the LR500A as a genuine Yamato Scientific unit, fulfilled directly so your lab receives a complete, ready-to-run set without sourcing accessories separately.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAuthorized Yamato Scientific dealer:\u003c\/strong\u003e genuine equipment backed by the manufacturer warranty.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn stock:\u003c\/strong\u003e ready to ship as a complete set with stand, rod, shaft, and propeller.\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\u003eLab-equipment specialists:\u003c\/strong\u003e dedicated support for stirrer specification questions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is the speed range of the Yamato LR500A stirrer?\u003c\/h3\u003e\u003cp\u003eThe LR500A runs from 34 to 340 rpm. Speed feedback control maintains the set rate even as sample viscosity changes during stirring, making it suited to high-viscosity solutions.\u003c\/p\u003e\n\u003ch3\u003eHow much torque does the LR500A deliver?\u003c\/h3\u003e\u003cp\u003eThe LR500A delivers a maximum torque of 1.96 N·m (20 kgf·cm). Its 70 W DC brushless motor and gearless direct drive sustain that torque for stirring thick, high-viscosity media.\u003c\/p\u003e\n\u003ch3\u003eWhat is included in the LR500A set?\u003c\/h3\u003e\u003cp\u003eThe set includes the main body, stand, rod, a stainless-steel stirring shaft (ø10 × 500 mm), a 75 mm 4-blade propeller, and a clamp. It arrives as a complete five-component kit ready for bench assembly.\u003c\/p\u003e\n\u003ch3\u003eWhat materials are the LR500A shaft and propeller made from?\u003c\/h3\u003e\u003cp\u003eThe stirring shaft and 75 mm 4-blade propeller are stainless steel. The shaft measures ø10 × 500 mm and resists corrosion across aqueous and many solvent-based samples.\u003c\/p\u003e\n\u003ch3\u003eWhat safety features protect the LR500A motor?\u003c\/h3\u003e\u003cp\u003eThe LR500A includes an overload stop that halts the motor automatically when load exceeds the maximum, plus a current-limit circuit and thermal motor protection. An LED indicator displays torque and overload status.\u003c\/p\u003e\n\u003ch3\u003eWhat are the dimensions and weight of the LR500A?\u003c\/h3\u003e\u003cp\u003eThe LR500A measures 24 × 18 × 18 inches and weighs 30 lbs. It is manufactured in Japan and carries ISO 9001:2015 and ISO 14001:2015 certification.\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\/lr-500a-set-main-body-stand-rod-stainless-steel-shaft-and-75-mm-4-blade-propeller-lr-500aa#product\",\n      \"name\": \"Yamato LR500AA Lr-500A Set Main Body, Stand, Rod, Stainless Steel Shaft And 75 Mm 4-Blade Propeller\",\n      \"sku\": \"LR-500AA\",\n      \"mpn\": \"LR-500AA\",\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\/lr-500a-set-main-body-stand-rod-stainless-steel-shaft-and-75-mm-4-blade-propeller-lr-500aa\",\n      \"dateModified\": \"2026-06-29\",\n      \"offers\": {\n        \"@type\": \"Offer\",\n        \"priceCurrency\": \"USD\",\n        \"price\": \"3145.00\",\n        \"availability\": \"https:\/\/schema.org\/InStock\",\n        \"url\": \"https:\/\/labsupplies.com\/products\/lr-500a-set-main-body-stand-rod-stainless-steel-shaft-and-75-mm-4-blade-propeller-lr-500aa\",\n        \"seller\": {\n          \"@type\": \"Organization\",\n          \"name\": \"LabSupplies.com\"\n        }\n      },\n      \"gtin12\": \"797059928873\",\n      \"image\": \"https:\/\/dl.dropboxusercontent.com\/scl\/fo\/02jn6wbbh1yhzaqkcyplw\/h\/LR500.png?rlkey=wtjo5lqeg5sku9a3506qrpssx\",\n      \"description\": \"Yamato LR500A digital overhead stirrer, 34–340 rpm, 1.96 N·m torque, DC brushless motor, complete set. 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