Yamato LR Series 1000 RPM Laboratory Stirrers are digitally controlled, high-torque stirring instruments designed for precise performance across low to high viscosity applications. Featuring brushless motors, direct-drive systems, and intelligent feedback control, these stirrers offer long-lasting reliability and safety in lab environments requiring continuous or heavy-duty operation.
- Models: LR500A, LR500B
Features:
- Brushless DC motor eliminates spark risk and reduces maintenance — no brushes to replace
- Direct-drive system offers quiet, stable operation with minimal mechanical wear
- High torque output for effective stirring of high-viscosity materials
- Digital tachometer ensures easy and precise speed setting and monitoring
- LED torque display allows real-time load monitoring; overload lamp shuts off motor when load exceeds limit
- Speed feedback control keeps rpm stable even when solution viscosity changes
Specifications
Performance:
-
Speed Range:
- LR500A: 34 – 340 rpm
- LR500B: 100 – 1000 rpm
-
Max Torque:
- LR500A: 1.96 N•m (20 kgf•cm)
- LR500B: 0.98 N•m (10 kgf•cm)
- Motor: Brushless DC motor (70W for LR500A / 100W for LR500B)
- Speed Control: Feedback-controlled system for consistent rpm under varying loads
Display & Safety:
- Display: 3-digit digital tachometer (speed) / Green LED torque indicator with 2-step bar + overload alert
- Safety Function: Automatic shutdown on overload condition
Design & Dimensions:
- Stirring System: Gearless direct-drive mechanism
- Shaft Diameter: ø10 mm
Power Supply:
- Voltage: AC100–125V, 50/60 Hz
- Current: LR500A: 3A / LR500B: 3.5A
Included Accessories
- Stainless steel stirring shaft (ø10 × 500 mm)
- 75 mm 4-blade propeller
- Clamp
Optional Accessories
- Various propellers (different shapes and sizes)
- Vacuum adapter
- Extra-long stirring shaft (ø10 × 800 mm)
- Glass stirring shaft
- Stand and support rod
Why Choose the Yamato LR Series?
- Ideal for high-precision, low-maintenance laboratory stirring
- High torque models allow processing of viscous samples
- Real-time speed and torque monitoring ensures accuracy
- Compact, direct-drive build reduces noise and wear
- 1-Year Manufacturer Warranty
- Backed by over 40 years of lab equipment excellence