Check the listing for details. 1270CFM Turbomolecular Pump, 600L/s. Condition: New. Listed at 3750.00 USD. ***In stock in California*** This is a brand new Turbomolecular Pump, 600L/s, well-packed in wood crate. Turbomolecular pump is a type of vacuum pump, superficially similar to a turbopump, used to obtain and maintain high vacuum.These pumps work on the principle that gas molecules can be given momentum in a desired direction by repeated collision with amoving solid surface. In a turbomolecular pump, a rapidly spinning fan rotor 'hits' gas molecules from the inlet of the pumptowards the exhaust in order to create or maintain a vacuum. Vacuum Speed: 600L/sUltimate Vacuum: 8L/S to 18L/SPre-stage Working Pressure ≤100paAmbient Temperature40°C In stock and ships instantly from our warehouse in Laguna Hills, CA 92653. ========== The detailed specs are in the photo gallery.