Vacuum De-Oiling is an operation that removes surface oils from parts without using ozone-depleting or hazardous chemicals, water or detergents. Thermal and vacuum technology remove the oil residue on parts through vaporization. Once the parts have been loaded the heater and pump are actuated to warm and evacuate the unit's chamber. The oil's boiling point falls with pressure so heating it in a slight vacuum dries the part quickly. The system is not designed to clean materials that do not evaporate quickly such as a solid lubricant. In most cases parts can be cleaned through this one-step process in about 20 minutes or less. The vapors are condensed and collected for reprocessing or recycling. Hazardous waste disposal costs are reduced or eliminated in this process.