Scroll vacuum pumps contain both a set 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 is Scroll Vacuum Pump usually steadily compressed until it really 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 so no contamination of the pumped gas can be done. In addition, the leak-tight design aids in preventing contamination of the pumped gas by ambient atmosphere. Maintenance is limited to changing the scroll suggestion seals which may be easily completed by the operator and without the need for special tools.