It's a great burden for the engine-driven air conditioner in the truck to provide comfortable environment for the driver in the cabin, when he needs to sleep during the long journey in summer and winter. To solve the problem, choose Boyard DC rotary compressors. They are totally electrical/battery started, which enable them to be used when the truck parks with engine off. Different DC power from 12V/24V/48V to 72V/312V are all available. We are also responsible to match the suitable controller for the customers if they need. The compressors can be used not only for air conditioner but also for cooling and refrigeration. New BLDC 48V, R290 compressor arrives! Just contact us and place a sample order to try.