Chillers and Coolers

For 60 years our award-winning chillers and coolers have been the cornerstone of our company.  Click here to see the thousands of applications PolyScience chillers and coolers complement each and every day.  Built in the United States, they are the most reliable in the industry — an exceptionally smart choice for end-user and OEM applications ranging from lasers and analytical equipment to reactors and manufacturing equipment. Click here to contact our sales team for your specific needs.

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Benchtop Chillers -
MM Series -5° to +50°C

Key Specifications

Working Temperature: -5° to +50°C 
Temperature Stability: ±0.1°C 
Cooling Capacity: Up to 460 watts @ 20°C


  • Precise and stable temperature control at low temperatures
  • Large, easy to read LED display
  • Space-saving, benchtop design
  • Cooling at ambient temperatures as high as 30°C
  • Low flow shutoff and alarm, high and low temperature alarms
  • Simple setup, operation, and maintenance
  • Choice of two different centrifugal pumps
  • Fluid level indicator
  • RS232 communication and external water filter optional

Performance Specifications & Part Numbers

MM Series Chiller, Centrifugal Pump MM Series Chiller, Centrifugal Pump
Working Temperature Range -5° to 50° C -5° to 50° C
Temperature Stability ±0.1° C ±0.1° C
Pump Type
Cooling Capacity @ -05°C 115 W (60Hz)/105 W (50Hz) 130 W (60Hz)/115 W (50Hz)
Cooling Capacity @ 0°C 195 W (60Hz)/175 W (50Hz) 215 W (60Hz)/190 W (50Hz)
Cooling Capacity @ +10°C 305 W (60Hz)/270 W (50Hz) 320 W (60Hz)/290 W (50Hz)
Cooling Capacity @ +20°C 435 W (60Hz)/390 W (50Hz) 460 W (60Hz)/410 W (50Hz)
Cooling Capacity @ +30°C 465 W (60Hz)/420 W (50Hz) 490 W (60Hz)/440 W (50Hz)
Cooling Capacity @ +40°C 505 W (60Hz)/450 W (50Hz) 520 W (60Hz)/470 W (50Hz)
Cooling Capacity @ +50°C 535 W (60Hz)/480 W (50Hz) 550 W (60Hz)/495 W (50Hz)
Maximum Pressure 14.50 psi (60Hz)/12.50 psi (50Hz) 5.10 psi (60Hz)/4.40 psi (50Hz)
Maximum Pressure Flow Rate 3.50 gpm (60Hz)/3.00 gpm (50Hz) 2.10 gpm (60Hz)/1.80 gpm (50Hz)
60Hz Part Number
50Hz Part Number