Low-noise integrated motor pumps
These motor pumps combine an oil-cooled asynchronous induction motor with power up to 92 kW [125 hp] with a vane pump or variable-displacement piston-type pump in the sound enclosure. The lack of dynamic seals eliminates the possibility of leaks while the motor and enclosure designs minimize noise by an average of 10 dBA.
Pump
- Variable axial piston pumps with 20 cm3 to 141 cm3 [1.22 in3 to 8.6 in3] displacement
- Control options such as pressure compensator and load sense
- Vane pumps with 18 cm3 to 193 cm3 [1.1 in3 to 11.9 in3] displacement
Motor
- 15 kW to 92 kW [20 hp to 125 hp] operating at 230V to 500V and 50Hzor 60Hz grid frequency
- IP 57 rating
- Unique design of the oil-cooled induction motor provides many benefits such as
up to 70% noise reduction - Superior cooling to allow higher motor overload, higher power output, or motor downsizing
- Motor bearings sealed from outer environment and lubricated by hydraulic oil
Integration
- Pump and motor are close coupled, that is, the pump flange is bolted directly to the motor and shafts are connected via male/female spline, allowing for an extremely compact package
- Less need for spare sparts
- No connection maintenance since the spline is lubricated by the hydraulic oil
Applications
- Marine
- Sawmill
- Entertainment
- Mining
- Elevators