Scroll vacuum pumps contain both a fixed and an orbiting scroll. As the orbiting scroll techniques, voids are manufactured at the inlet of the pump, drawing in the gas. As the rotor additional moves, the gas is certainly steadily compressed until it is discharged to atmosphere at the pump exhaust.

The scroll pump design provides 100% oil-free procedure as it does not require any Scroll Vacuum Pump lubrication. The bearings are separated from the compression chamber therefore no contamination of the pumped gas is possible. Furthermore, the leak-tight design aids in preventing contamination of the pumped gas by ambient air. Maintenance is limited to changing the scroll tip seals which may be very easily completed by the operator and with no need for special tools.