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Yamato LT Series 1200 RPM Laboratory Stirrers

LT400A/400B/400C  LT500A/500B


LT Series stirrers include LT400A and LT500A with higher torque, LT400B and LT500B with well-balanced speed and torque, and LT400C with high speed, to support different applications.


  • Highly sensitive feedback system keeps the set speed, even with changing viscosity during stir
  • Maintenance free DC brushless motor
  • Digital speed indicator for accurate speed setting and confirmation
  • Noise prevention measures for optimal work environment
  • More safety-oriented design
Viscosity of sampleHighMediumMedium-LowHighMedium
Speed range10~300rpm15~600rpm25~1200rpm15~600rpm25~1200rpm
Torque0.9N•m (9.0kgf•cm)0.5N•m (5.0kgf•cm)0.3N•m (3.0kgf•cm)1.0N•m (10.0kgf•cm)0.6N•m (6.0kgf•cm)
MotorDC brushless motor 30W
Speed controlFeedback control
Panel displayDigital speed display, Overload display*¹ , Torque indicator (20% gradation)*²
Chuckø8mm drill chuck
Safety deviceCurrent limit circuit *³ , Thermal protector*⁴ , Drill chuck cover
External dimensions WxDxH146 x 154 x 165 mm
Power sourceAC100V~AC125V 50/60Hz
Power cordPower supply cord with bipolar grounding type plug 2m
Weight2.4 kg
Included accessoriesClamp, safety cover, chuck handle
Operational accessories*Stirring shaft (stainless steel or glass), propellers (different types and sizes), stand and rod
List Price$ 1,150 (main body)$ 1,150 (main body)$ 1,150 (main body)$ 1,390 (main body)$ 1,390 (main body)
Recommended set pricing$ 1,670$ 1,670$ 1,670$ 1,910$ 1,910
Recommended set compositionMain body, stand, rod, stainless steel shaft, 60mm 4-blade propeller

*Operational accessories purchased separately
*1, When load exceeding the maximum torque is applied, tachometer display flashes.
*2, Torque indicator LED displays the loading status by 5 gradation.
*3,  When  load  exceeding  the  maximum  torque  is  applied,  current  limit  circuit  automatically  controls  the current to protect the motor.
*4,  When temperature of  the motor  exceeds  the upper  limit  temperature, thermal protector  shuts  off  the current flowing to the motor and prevents it from burnout.

Click on the links below to download the associated PDFs.

LT LR Catalog

LT LR Accessories

Stirrer and Shaker Buyer’s Guide

To download Operational Manual, visit our Technical Support Center

40 years as a leading scientific lab equipment provider in the United States.
All products come with a 1 year warranty.
Every product is made through environmentally conscious methods and remains eco-friendly all throughout its life cycle.