Heidolph^® Electronic Overhead Stirrers

Electronic Stirrers are especially suitable for applications in which the viscosity varies during process, either through reaction or mixing. The displayed torque gives evidence of the actual viscosity.

• Encapsulated housing, partly sealed against aggressive substances
• High and constant torque
• Monitoring of viscosity changes
• Smooth start prevents spilling of media
• Accepts 200% peak overload
• Enhanced digital display of torque and speed
• Speed control uses rheostat or interface
• Excellent mixing properties even with high viscosity substances
• Maintains exact speed even under changing load
• Torque calibration
• Easily reproducible settings
• Designed for continuous operation
• Units feature a shaft that can be extended through the top to allow variable depth adjustment
• Delivery includes 10.5 mm chuck

For your safety:

• Set speed displayed at standstill, improves safety
• Light weight for easy handling
• Shaft guard available (optional)
• Automatic motor cut-out in a continuous overload situation

Integrates in a computer aided lab environment:

• Analog interface
• 0 – 10 volts data OUT
• Record speed
• Record torque
• RS 232 serial interface (standard)
  • Record speed and torque
  • Pre-set speed
  • Pre-set speed range (RZR 2102)
• Interface extension (optional)
  • Pre-set speed 4 – 20 mA
  • Pre-set speed range TTL- signal
    (RZR 2102 control only)
  • Integrate stirrer in automatic process
• Start and stop commands via remote control box (optional)
• Software Watch & Control (optional)
• Interface PBI for Profibus (optional)
• Profibus MasterCard (optional)

Electronic Stirrer RZR 2051 control

RZR 2051 control

Single speed gear, high speed

• Power input: 80 W
• Power output: 50 W
• Torque:
  • 40 Ncm max. (peak overload)
  • 20 Ncm (continuous)
• Viscosity range: 10,000 mPa s max.
• Speed range: 50 – 2,000 rpm
• Speed vs. torque graph

RZR 2052 control

Single speed gear, high torque

• Power input: 140 W
• Power output: 100 W
• Torque:
  • 180 Ncm max. (peak overload)
  • 90 Ncm (continuous)
• Viscosity range: up to 40,000 mPa s
• Speed range: 30 – 1,000 rpm
• Speed vs. torque graph

Electronic Stirrer RZR 2102 control

RZR 2102 control

2-speed transmission covers a wide speed range at high torque

• LED for speed range selected
• Power input: 140 W
• Power output: 100 W
• Torque:
  • 400 Ncm max. (peak overload
  • 200 Ncm (continuous)
• Viscosity range: 100,000 mPa s max.
• Speed range: 12 – 2,000 rpm
• Speed vs. torque graph

RZR 2102 control Z

Consists of a standard RZR 2102 control with additional flanged planet gear (gear ratio 4:1)

• Highest torque
  • max. 800 Ncm (peak overload)
  • max. 700 Ncm (continuous)
• Speed range
  • Gear 1: 4 – 108 rpm
  • Gear 2: 17 – 540 rpm
• Viscosity range: 350,000 mPa s
• No shaft through design
• Delivery includes special 10.5 Z chuck
• Speed vs. torque graph