Edwards STP301

This used Edwards STP301 is a turbomolecular pump designed to produce high and ultra-high vacuum levels for scientific instrumentation and industrial process equipment. Turbo pumps of this class are widely used in analytical instruments, coating systems, and research vacuum chambers where clean, oil-free vacuum below the range of standard backing pumps is required. The STP301 uses a magnetically or hybrid-bearing supported rotor spinning at high speed to move gas molecules efficiently toward the pump exhaust. This particular unit has been removed from service and has been visually and mechanically inspected, though buyers should note that turbo pumps of this age and usage level are typically sold as-is for testing or refurbishment given the precision bearings and electronics involved. When paired with an appropriate backing pump and controller, the STP301 is capable of reaching high vacuum quickly and maintaining stable performance across long duty cycles. Its design emphasizes low vibration and quiet operation relative to older turbo pump generations.//This makes it a practical choice for sensitive analytical setups. Laboratories and equipment integrators working with mass spectrometers, surface science instruments, or thin film deposition systems will find the STP301 a useful addition for restoring high vacuum capability or building a spare parts inventory for an existing STP fleet.