Sealey compressors belt drive 3ph 2 stage with cast cylinders sealey sac62710b heavy duty three phase compressors suitable for the professional workshop two stage pump system coupled with a 3ph motor maximises performance to keep running costs low compared to single stage single phase models pumps feature heavy duty full cast cylinders capped by alloy heads for improved heat dissipation and long life heavy duty drive guards protect belt and flywheel that is designed to force air over the