Applications for Heidolph overhead stirrers include mixing, homogenising, suspension, gassing and recirculation of highly viscous substances.
Heidolph overhead stirrer models have a number of standard features and benefits :
- Sealed housings for long life performance and protection
- Maintenance free motors for low cost operation and smooth start feature which ensures no splashing for additional safety
- High torque with the ability to mix high viscosity mediums
- Over temperature protection allows for unattended operation
The range is divided into mechanical and electronic models. Mechanical stirrers are ideal for simple tasks. Two speed gears allow for high torque at low speeds.
Electronic Stirrers are especially suitable for applications in which the viscosity varies during process, either through reaction or due to mixing. The displayed torque gives evidence of the viscosity change.
Features of the mechanical models include :
- 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 ease of operation
- Low-noise design
- Maintenance and spark-free condenser motor
- Superior torque at low speed
- RZR 2021 and RZR 2041 with their digital displays are the first choice for advanced requirements
- Variable height adjustment of the stirrer tool
- Delivery includes 10.5 mm chuck
Features of the electronic models include :
- Encapsulated housing, partly sealed against aggressive substances
- Max. torque available on speed range
- 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 of high viscosity substances
- Maintains exact speed even under changing load
- Torque calibration
- Easily reproducible settings
- Designed for continuous operation
- Variable height adjustment of the stirrer tool
- Delivery includes 10.5 mm chuck
For additional safety:
- Set speed displayed at standstill, improves safety
- Light weight for ease of handling
- Shaft guard available (optional)
- Automatic motor cut-out in a continuous overload situation
Analog & RS 232 interface (standard)
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)
Heidolph overhead stirrers are complimented by a wide range of accessories including impellors in stainless steel and PTFE, stands (including special designs) and the ultra effective Visco jet mixing system.
RZR 1 for basic requirements
RZR 2020/RZR 2021 standard units for everyday simple tasks
RZR 2041 powerful standard unit
RZR 2051 control single gear and high speed
RZR 2052 single speed gear with high torque
RZR 2102 control 2 speed transmission offers high speed and high torque
RZR 2012 control Z 4:1 gear ratios means the highest torque
