Compact air compressor powered by hydraulic gear motor, the tool can work connected to the circuits of power packs, trucks, sky platforms, mobile workshops, excavators and all machines equipped with a suitable hydraulic circuit. The tools of the line can supplies air compressed with flow out put from 400 l/ min to 2000 l/min and pressure from 1 to 10 bar. The exclusive hydraulic motor has control valves integrated that assure protection against excess of flow / speed and other posible hydraulic abuses. This guarantees safety in case the tool is connected to machines with hydraulic values higher then what is necessary.