Scroll vacuum pumps contain both a fixed and an orbiting scroll. As the orbiting scroll Scroll Vacuum Pump movements, voids are created 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 procedure as it does not require any lubrication. The bearings are separated from the compression chamber therefore no contamination of the pumped gas is possible. In addition, the leak-tight design aids in preventing contamination of the pumped gas by ambient surroundings. Maintenance is limited to changing the scroll suggestion seals which can be very easily done by the operator and with no need for special tools.