MENZEL ELEKTROMOTOREN created an unusual motor configuration to help out a chemical plant that needed a replacement for a failed pump motor that would be able to accommodate an existing oversized pump flange dimension.
Menzel was able to provide a size 400 motor that matched the performance profile and was light enough for use in the application. It converted a stock, IM B3 type motor (foot mounting) to type IM V1 (vertical flange mounting). The driveend bearing seat was converted for the installation of a thrust bearing. Menzel also manufactured a special flange in-house and adapted it to the shaft, which could only protrude 120mm from the flange. Menzel prepared the motor for installation at the customer's site, shifting the main terminal box to the most accessible position and mounting a cable entry that could be readily adapted to the existing cable diameter on site. The motor, which is now successfully operating in the plant, has a rated output of 315 kW and a nominal voltage of 5,000V. It features the cooling type IC 411 and an IP55 protection rating and weighs 4,900kg.