OS20-S LED Overhead Stirrer

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The OS20-S LED Overhead Stirrer is a laboratory mixer designed by brands like DLAB Scientific for mechanical agitation of liquids up to 20 liters. It is widely used in chemical synthesis, pharmaceutical formulation, and general research applications where reliable, medium-viscosity mixing is required.
Key Specifications
  • Speed Range: 50 to 2,200 rpm with an accuracy of ±3 rpm.
  • Max Stirring Capacity: 20 liters of water.
  • Max Viscosity: 10,000 mPas, suitable for a range of liquid types.
  • Torque: Delivers a maximum torque of 40 Ncm.
  • Motor: Maintenance-free, explosion-proof brushless DC motor.
  • Chuck Range: Accommodates shaft diameters from 0.5 mm to 10 mm. 
Performance & Safety Features
  • LED Display: Provides real-time monitoring of actual stirring speed.
  • Microprocessor Control: Employs constant speed technology to maintain stable agitation even as liquid viscosity changes during a reaction.
  • Safety Circuits: Features integrated overload protection and safety circuits that automatically stop the motor to prevent damage during anti-stall or high-resistance conditions.
  • Through-Shaft Design: Allows users to easily adjust the height of the stirring paddle through the top of the unit without moving the entire motor
Key Features
  • High reliability and outstanding performance.
  • A wide range of speed from 50 to 2200rpm.
  • Brushless DC motor for long life, maintenance free and explosion proof.
  • LED screen for monitoring actual speed.
  • Safety circuits allow for safe stop function in anti-stall or overload conditions.
  • High reliability and outstanding performance.
  • A wide range of speed from 50 to  2200rpm.
  • Brushless DC motor for long life, maintenance free and explosion proof.
  • LED screen for monitoring actual speed.
  • Safety circuits allow for safe stop function in anti-stall or overload conditions.

Specifications:

Model OS20-S
Max. stirring quantity(H2O) 20L
Motor type brushless DC motor
Motor input power 60W
Motor output power 50W
Voltage 100-240V, 50/60 Hz
Power 70W
Speed range 50-2200rpm
Speed display accuracy ±3rpm
Speed display LED
Overload protection display LED lights
Max. torque 40Ncm
Viscosity max. 10000mPas
Chuck range diameter 0.5-10mm
Dimension[WxHxD] 83x220x186mm
Weight 2.8kg
Protection class IP42
Permissible ambient temperature and humidity 5-40°C, 80%RH

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