Air from the atmosphere is passed through the Air-Filter and the Air-Suction Valve. After that filtered air, mix with oil then compression event takes place at the Air-end. Two rotating screws compress the Air-Oil mixture via rotating at high frequency.

Compressed Air-Oil Mixture enters into the Oil Tank. Oil goes to the bottom side of the Oil Tank. If the temperature of the oil is under 71 °C, the oil goes through the Oil filter and goes into the Air-end again. If it is above 71 °C, oil is sent to the Air-Oil Radiator. Cooled Oil passes through then Oil filter and goes into the Air-end.

Air and tiny oil particles go to the Air-Oil Separator. At the Separator air is seperated from the tiny oil particles. Seperated air goes into the Air-Oil Radiator. So cooled air can go into Air Dryer now.