Refurbished Edwards EXT-255-DX with DN100ISO-K flange.
The Edwards EXT255 is a high performance traditional turbo molecular Pump. The pump offers a good ultimate vacuum, extremely high compression ratio for light gases and extended tolerance to high backing pressures. For the UHV user this means good ultimate vacuum with the option of a dry backing pump. For the general vacuum user this means fast pumpdown.
The EXT turbomolecular and compound molecular pumps provide a reliable, hydrocarbon-free high and ultra high vacuum. Utilizing multi-stage axial flow turbines combined with magnetic and ceramic bearings, the EXT design provides oil and vibration free operation with minimal maintenance on high critical foreline pressure processes.
EXT255DX at a glance:
- Inlet Flange: DN100ISO-K
- Pumping Speed L/S: Nitrogen: 220, Helium: 230, Hydrogen: 180
- Ultimate Pressure: 10-10 mbar
- Startup Time: 3 min.
- Rotational Speed: 60000 Hz.
- Orientation: Any
- Backing Pressure: < 5 mbar
- Outlet Flange: DN25KF