Crankcase Heaters

Crankcase heaters are essential protective devices used in refrigeration and air conditioning systems to prevent refrigerant migration into the compressor crankcase during off-cycles. By gently warming the compressor oil, these heaters ensure that liquid refrigerant does not mix with the oil, which could otherwise lead to foaming, reduced lubrication, and serious compressor damage at startup.

At Finstar Industrial Systems Ltd, we supply reliable and efficient crankcase heaters designed for scroll, reciprocating, and rotary compressors. Our heaters come in strap-on, insertion, and band styles, suitable for various compressor sizes and voltage ratings (110V, 220V). Built with durable heating elements and insulation, they provide consistent performance even in low ambient temperatures.

Applications of Crankcase Heaters

Cold Rooms and Freezers
In low-temperature environments, crankcase heaters maintain oil integrity in compressors that frequently cycle off. This prevents refrigerant from condensing into the crankcase during long idle periods.
Commercial and Central Air Conditioning Systems
Multi-unit systems often experience refrigerant migration between off and active compressors. Crankcase heaters prevent this by ensuring vaporization of any liquid refrigerant in idle units.
HVAC Systems with Long Off-Cycles
Systems that operate seasonally or intermittently benefit from these heaters that preserve compressor oil condition during idle periods, especially in cool climates.
Industrial Chillers and Process Cooling Plants
In high-capacity systems, these heaters play a critical role in protecting high-value compressors from startup shock and lubricant breakdown caused by refrigerant dilution.
Refrigerated Transport and Remote Installations
Mobile or outdoor installations exposed to low ambient temperatures rely on these heaters to ensure reliable compressor operation in all weather conditions.

Why Choose Finstar Industrial Systems Ltd?

Finstar Industrial Systems Ltd provides durable, energy-efficient crankcase heaters sourced from global manufacturers. These heaters are suitable when retrofitting a cold room or installing a new commercial HVAC unit. We help you select the right size and voltage configuration for your compressor model. We offer technical advice, fast delivery, and long-lasting reliability.