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

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