The MAXI vacuum pumps are designed for high suction performance, for example to compensate larger leakages and have three to four ejector steps with high energy efficiency. Part of the vacuum pumps of this series ist equipped with pressure gauge, vacuum gauge, silencer and integrated valve with hand switch as a standard.
MIDI vacuum pumps are available with L or M…L characteristics as standard but other characteristics are available on request.
The L-characteristc consists of high suction performance of the vacuum pump. The vacuum level however, is rather low (up to approx. 70%)
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The M-characteristic has a good suction performance but also a higher vacuum level (up to 90%) and offers the performance combination of choice for most vacuum applications in the industrial sector.
The H-Characteristic has a high vacuum level (up to approx. 99%). Suction performance is not the main focus.
The M ... L-characteristic is similar to the M-Characteristic, whereas the M ... L vacuum pumps are specifically designed for low or altering operating pressures.