Roots vacuum pumps
In a Roots vacuum pump, two figure-of-eight-shaped pistons rotate in opposite directions in a housing. They touch neither each other nor the wall, and the narrow gaps remain dry. The gas is enclosed between the pistons and the housing and conveyed to the outlet side without any operating fluid being needed in the pumping chamber.
Roots pumps convey large quantities of gas but on their own build up only a limited pressure difference. They therefore generally work together with a backing pump and multiply its pumping speed in the medium and rough vacuum range. Such pump systems are found in coating technology, on vacuum furnaces, in drying, in leak detection and in semiconductor manufacturing.
The shop lists 21 series of this type from Atlas Copco, Becker, Busch, Edwards, Leybold and Pfeiffer Vacuum. The tiles below lead to the individual series with their models and key data; matching spare parts and consumables can be requested directly.
Series: Roots vacuum pumps
Atlas CopcoDRB series4 models · 253–2,050 m³/h- Atlas CopcoDRB VSD+ series2 models · 1,500–3,000 m³/h
- Atlas CopcoZRS series5 models · 310–4,140 m³/h
- BeckerRBP series3 models · 500–2,000 m³/h
- BuschPANDA/PUMA series27 models · 250–12,000 m³/h
EdwardsEH series5 models · 310–4,140 m³/h
EdwardsGMB series2 models · 25,500–44,300 m³/h
EdwardsHV series1 model · 7,200 m³/h
EdwardsStokes series4 models · 1,733–5,525 m³/h- EdwardsnXLi series7 models · 98–200 m³/h
- EdwardsnXRi series5 models · 30–120 m³/h
LeyboldECODRY series5 models · 25–55 m³/h
LeyboldRUVAC WA/WAU series8 models · 210–1,850 m³/h- LeyboldRUVAC WH/WHU series7 models · 620–4,700 m³/h
- LeyboldRUVAC WS/WSU series8 models · 210–1,850 m³/h
- Pfeiffer VacuumA 100/200 L series3 models · 100–200 m³/h
- Pfeiffer VacuumA4 series12 models · 95–3,000 m³/h
- Pfeiffer VacuumACP series4 models · 14–88 m³/h
- Pfeiffer VacuumHiLobe series17 models · 1,050–13,540 m³/h
- Pfeiffer VacuumTORRI series3 models · 100–600 m³/h
- Pfeiffer VacuumUltiDry series2 models · 1,800–3,000 m³/h
