ForZair™ Transformer Cooling Products : HeatSink Auxillary Transformer Oil Coolers

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Instant Portable Relief

Wherever You Want It.

Whenever You Need It.

From Unifin International comes ForZair™ HeatSink, a portable and highly efficient Auxiliary Transformer Cooler that can be installed on a transformer quickly to immediately reduce the temperature of its dielectric cooling oil.

ForZair™ HeatSink's strong performance allows increased overload and helps extend the life of your transformer. Plus, with its small footprint, low profile and quick-connect hoses, your ForZair™ HeatSink cooler can be transferred easily from one overloaded substation to another, providing "instant relief" wherever it is needed most.

Features & Options

  • Unifin's extruded aluminum Integral Finned Tubing to provide exceptional durability
  • Cardinal transformer oil pumps, designed specifically for transformer oil and using a glandless design to prevent leaks.
  • 230V single phase
  • 2-ball valves
  • Expansion tank
  • NEMA 4 control panel CSA-approved with manual disconnect switch, hand-off-auto selector, 2 Customer permissives, 1 form C alarm contact and large field contacts
  • Skid-mounted package on a durable frame designed for easy lifting by forklift or overhead crane
  • One coat of Zinc chromate primer and enamel, ANSI 70 gray
  • Options: 575 volt/ 3ph, 460 volt/3ph or 230 volt/3ph
  • Filter with bypass loop
  • Oil flow meter/display with flow switch
  • Harley™ bearings
  • Flexible hoses and adapters for transformer piping complete with vacuum valve
  • Trailer-mounted
  • Special paint
  • Cooler clean to ISO standards
  • Nitrogen filled for shipment


Increased overload.

Extended transformer life.

More economical operation.

For more details click here to view our HeatSink Performance in PDF.

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