Screw Air Compressors with Visual Indication is equipped with control system which enables the operation of air compressor more reliable which could ensure compressor running well. The Air Compressors are provided with visual indication of fault warning. The Air Compressors are assembled with air end of wear free rolling profile. The Screw Air Compressors with Visual Indication have the three-stage separation system namely centrifugal and gravitational separation with air oil separation elements, which reduces oil content to 2-3 PPM.