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Heidolph Overhead Stirrers: Your advantages - our Hei-lights

Premium Safety Standards
  • Important for continuous unattended operation: the motor will be switched off if a high thermal load situation occurs to increase safety in your lab and to prevent accidents
  • Additional safety is provided by sparkless motors which reduce incidents in a volatile environment
  • The electronic stirrers feature a smooth start operation which prevents spills and splashing media. The speed will ramp up slowly until your set rpm has been reached
  • An optional shaft guard prevents any accidents involving contact with the impeller shaft running at high speeds
  • Use an optional remote control via cable to start and stop your electronic stirrer outside a closed fume hood

Superior Ease of Use
  • A through-shaft design allows for adjusting of the impeller position to make height adjustment more convenient for you
  • Reduce your work time and achieve excellent mixing results in challenging high-viscosity media
  • Optional software programs for all electronic stirrers aid you in automating your process, and software saves all data in electronic files
  • A single grip allows you to re-adjust the height of your stirrer on the optional telescope stand
  • Due to the light-weight design all set-ups in your lab are easy and fast
  • The clear and self-explanatory front panel layout is for your ease of operation
  • Use your lab space efficiently: the slim and space-saving design nicely allows to fit into any glassware set-up

Reduced Cost of Ownership
  • Reduce your maintenance costs: the sealed housing protects your stirrer from aggresive fumes, liquids and vapours to prevent internal corrosion. This results in an increased lifespan of 10 years on average at a reduced maintenance and repair cost
  • The high torque accounts for better mixing results in less time that reduces your process time and your working hours significantly
  • Maintenance-free motors reduce repairs and down times significantly to ensure years of continuous operation
  • Patented impeller technology for demanding applications that mix gels and other similar media in shorter times which reduces process cost and working hours

Specifications


Model RZR 1 RZR 2020 RZR 2021 RZR 2041 RZR 2051 control RZR 2052 control RZR 2102 control RZR 2102 control Z
Power Rating, motor input/output 77W/18W 50W/27W 50W/27W 70W/37W 80W/50W 140W/100W 140W/100W 140W/100W
Number of Speed Gears 2 2 2 2 1 1 2 2
Speed Range 35 rpm - 250 rpm, 280 rpm - 2200 rpm 40 rpm - 400 rpm, 200 rpm - 2000 rpm 40 rpm - 400 rpm; 200 rpm - 2000 rpm 40 rpm - 400 rpm, 200 rpm - 2000 rpm 50 rpm - 2000 rpm 30 rpm - 1000 rpm 12 rpm - 400 rpm; 60 rpm - 2000 rpm 4 rpm - 108 rpm; 17 rpm - 540 rpm
Speed Indicator Scale Scale Digital Digital Digital Digital Digital Digital
Speed Control Mechanic Mechanic Mechanic Mechanic Electronic Electronic Electronic Electronic
Torque, maximum
- overload mode		  
100 Ncm		  
400 Ncm		  
400 Ncm		  
520 Ncm		 20 Ncm
40 Ncm		 90 Ncm
180 Ncm		 200 Ncm
400 Ncm		 700 Ncm
800 Ncm
Power Reserve under overload - - - - 200% 200% 200% 200%
Torque Indicator - - - - Digital Digital Digital Digital
Overload Protection Automatic cut-out Automatic cut-out Automatic cut-out Automatic cut-out Automatic cut-out features LED Automatic cut-out features LED Automatic cut-out features LED Automatic cut-out features LED
Motor Protection Overheat protection reset by power switch Overheat protection reset by power switch Overheat protection reset by power switch Overheat protection reset by power switch Overheat protection reset by power switch Overheat protection reset by power switch Overheat protection reset by power switch Overheat protection reset by power switch
Viscosity, maximum 40000 mPa s 60000 mPa s 60000 mPa s 100000 mPa s 10000 mPa s 40000 mPa s 100000 mPa s 350000 mPa s
Stirring Cap, H2O, maximum 20 litres 25 litres 25 litres 40 litres 40 litres 100 litres 100 litres 100 litres
Analog / Digital Interface - - - - Yes Yes Yes Yes
Shaft Diameter, maximum 8mm 10mm 10mm 10mm 10mm 10mm 10mm 10mm
Ambient Temperature Range 0°C - 40°C 0°C - 40°C 0°C - 40°C 0°C - 40°C 0°C - 40°C 0°C - 40°C 0°C - 40°C 0°C - 40°C
Maximum Relative Humidity 95%, no condensation 95%, no condensation 95%, no condensation 95%, no condensation 95%, no condensation 95%, no condensation 95%, no condensation 95%, no condensation
Dimensions (W × H × D) 71mm × 250mm × 172mm 82mm × 206mm × 176mm 82mm × 206mm × 176mm 82mm × 211mm × 176mm 72mm × 206mm × 176mm 82mm × 211mm × 176mm 82mm × 211mm × 176mm 82mm × 292mm × 176mm
Stay Bar Size (diameter × L) 13mm × 300mm 13mm × 160mm 13mm × 160mm 13mm × 160mm 13mm × 160mm 13mm × 160mm 13mm × 160mm 13mm × 160mm
Weight 2.7kg 3.0kg 3.0kg 3.3kg 2.8kg 3.7kg 3.7kg 4.7kg
Protection Class (DIN EN 60529) IP 20 IP 40 IP 40 IP 40 IP 40 IP 40 IP 40 IP 40
Supply Voltage 230V / 50 Hz; 115V / 60 Hz 230V / 50 Hz; 115V / 60 Hz 230V / 50 Hz; 115V / 60 Hz 230V / 50 Hz; 115V / 60 Hz 230V / 50 Hz; 115V / 60 Hz 230V / 50 Hz; 115V / 60 Hz 230V / 50 Hz; 115V / 60 Hz 230V / 50 Hz; 115V / 60 Hz