As oil contaminated air may falsify measurement data. The oil-free multi-cellular-vacuum pumps of the range TD, however, are not only environmentally friendly but also vibration-free. Oil-free vacuum pumps are used, for example, for fixing chipboard and glass plates, as well as for environmental monitoring and measuring technology. The motors of the vacuum pumps have a standard winding protector and comply with the standards of protection class IP 54.
