Jinwei Manufactures Crankcase Heater Elements for Compressors

Shengzhou Jinwei Electric Heating Appliance Co., Ltd. focuses on the production and supply of crankcase heater elements intended for compressor protection within refrigeration systems. These elements are crucial for preventing refrigerant from condensing into the compressor's lubricating oil during off-cycle periods, thereby enhancing operational reliability and extending equipment lifespan.

The company's heater elements are typically constructed from silicone rubber, offering customization in belt width, including standard sizes like 14mm and 20mm, as well as 25mm and 30mm options. Lengths can be tailored to specific customer requirements, with lead wires commonly set at 1000mm or adapted as needed. The design aims to maintain the crankcase oil temperature consistently above that of the surrounding system, preventing condensation and ensuring smooth, properly lubricated starts.

These crankcase heaters are particularly vital for systems subjected to prolonged downtime, operating in environments with significant temperature fluctuations, or in high-humidity conditions. They find application in large commercial air conditioning units, refrigeration systems for cold storage facilities, heat pump systems, and winter heating modes for air conditioners.

Jinwei highlights that while not a primary refrigeration component, the crankcase heater element serves as an essential protective device. It ensures the compressor's lubricating oil retains its proper viscosity and lubricating properties, mitigating risks such as liquid slugging and improving overall system performance. The products carry CE approval.