Edwards nXDS20i

This used Edwards nXDS20i is a dry scroll vacuum pump built for clean, oil-free vacuum generation in laboratory and analytical applications. The nXDS series is widely used as a backing pump for turbomolecular systems and for direct connection to mass spectrometers, leak detectors, and other analytical instruments where contamination-free vacuum is essential. Its compact scroll design delivers reliable performance while minimizing maintenance requirements compared to oil-sealed alternatives. The pump has been tested and is functioning normally, showing typical signs of use consistent with its service history. Dry scroll technology means there is no oil to change or dispose of, which reduces downtime and operating costs for laboratories and research facilities running continuous vacuum processes. The nXDS20i is also notably quiet in operation, making it well suited for shared lab spaces and instrument rooms. This unit supports a wide range of vacuum applications including sample preparation, freeze drying support, and vacuum ovens, as well as serving as a dependable backing pump in multi-stage vacuum systems. It is a good fit for labs looking to replace an aging oil-sealed pump with a cleaner, lower-maintenance alternative, or for those expanding vacuum capacity without adding oil handling logistics to their workflow.