The LOHER VARIO Ex px (e) series has a welded steel enclosure for the highest degree of variability and versatility. Flange rings at the ends of the enclosure increase the torsional stiffness and ensure a vibration-proof mechanical design. The steel version allows various bearing concepts, dimensions can be adapted and a wide range of instruments can be mounted.
The surface cooling with flat ribs combined with a defined inner cooling circuit with internal shaft-mounted fan ensure optimum motor utilization. The copper bar rotors used as standard allow the starting and operating parameters to be optimized for each and every application. In conjunction with the Ex p system harmonized for the application, the motors can be used in Zone 1 in the medium power range. Further, the pressurized enclosure permits reliable protection against the ingress of corrosive atmospheres.