Scroll vacuum pumps consist of both a set and an orbiting scroll. As the orbiting scroll movements, voids are manufactured at the inlet of the pump, drawing in the gas. As the rotor further moves, the gas is usually steadily compressed until it is discharged to atmosphere at the pump exhaust.
The scroll pump design provides 100% oil-free 
operation as it will not require any lubrication. The bearings are separated from the compression स्क्रॉल वैक्यूम पंप chamber therefore no contamination of the pumped gas can be done. In addition, the leak-tight design helps prevent contamination of the pumped gas by ambient air. Maintenance is bound to changing the scroll tip seals which can be very easily completed by the operator and without the need for special tools.