Hardening and tempering of shafts and gearwheels The challenge of the application is
low because the vacuum system has to cope mainly with the initial air and moisture content of the furnace as well as small amounts of impurities.
RUTA pump system with rotary vane vacuum pumps of the SOGEVAC series, combined with Roots pumps of the RUVAC WA-, WS- or WH-series. For this application, the use of oil-sealed rotary vane pumps is economically the best choice, as the pumps are not exposed to major loads.
For use in applications with higher particle loads, the combination with dust filters makes sense.