Heidolph^® Mechanical Overhead Stirrers

These stirrers are ideal for all kinds of routine applications. The two-speed gear allows a high torque at low rotation speed.

• Mechanical speed setting
• Stepless transmission
• Speed range: 40 – 2,000 rpm
• Designed for continuous operation
• Motor cut-out feature in a permanent overload situation
• Long performance life
• Clear front panel layout for easy operation
• Low-noise design
• Maintenance and spark-free condenser motor
• Superior torque at low speed (refer to diagram)
• RZR 2021 and RZR 2041 with their digital displays are the first choice for advanced requirements
• Units feature a shaft that can be extended through the top to allow variable depth adjustment
• Delivery includes 10.5 mm chuck

RZR 1

• Split pole motor features overheat protection
• Power output: 18 W
• Handles substances up to 40,000 mPa s max.
• Wide speed range (stepless)
  • shaft 1: 35 – 250 rpm
  • shaft 2: 280 – 2,200 rpm
• Speed control: scale marks
• Units feature a shaft that can be extended through the top to allow variable depth adjustment
• Delivery includes 8.5 mm chuck
• Speed vs. torque graph

RZR 50

Heavy-duty mechanical stirrer

• Split pole motor features overheat protection
• Power input: 105 W
• Power output: 38 W
• Speed range: 45 rpm to 2,000 rpm
• Analog speed control
• Viscosity range: up to 50,000 mPa s
• Delivery includes 8.5 mm chuck

RZR 2020 / RZR 2021

RZR 2020 same as RZR 2021, except for digital display

• Power input: 50 W
• Power output: 27 W
• Torque: 400 Ncm max. at 40 rpm
• Viscosity range: up to 60,000 mPa s
• Light weight for easy handling
• Slim-line space-saving design
• RZR 2021 features digital display for reproducible settings
• Speed vs. torque graph

RZR 2041

The powerful standard stirrer

• Power input: 70 W
• Power output: 37 W
• Torque: 520 Ncm max. at 40 rpm
• Viscosity range: up to 100,000 mPa s
• Speed range: 40 - 2,000 rpm
• High power and torque
• Digital speed display for advanced requirements
• Speed vs. torque graph