Stainless steel or steel tank, without oil, silent, clean air 220V AC ,50 HZ (220V AC, 60HZ 110V AC, 60H OEM Model: HK-8EW-120Power: 3360W(1.5HP)Supply Voltage: 220V AC ,50 HZ (220V AC, 60HZ 110V AC, 60HZ)Air Displacement : 400L/minNoise: 70db Tank: 120LMax Pressure : 8bar Weight: 120kgs