Sealey compressors 500l belt drive 3ph 2 stage sealey sac5507575b a compressor from sealey suitable for the professional workshop fitted with two genuine 3ph motors 75hp which maximise performance to keep running costs low compared to single stage single phase models the two pumps have 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 pump to aid cool