Compact hydraulic power packs are a type of hydraulic power pack.
They are characterised by a highly compact design, since the motor
shaft of the electric motor also acts as the pump shaft.
For type HK, HKL and HKLW, the fan is securely attached to the motor shaft.
An external cooler is not generally required. Type HK, HKF and HKL includes
a 3-phase motor, while type HKLW includes a single-phase-motor. The compact
hydraulic power pack type HK and HKF has a vertical housing, while type HKL
and HKLW has a horizontal housing. Single-circuit, dual-circuit or triple-circuit
systems can be selected. A radial piston pump, an external gear pump or an
internal gear pump can be used as a hydraulic pump.

Intended applications:
■ Clamping systems on machine tools and turning centres
■ Welding machines, roboter
■ Endurance test benches
■ Endurance test bench construction
■ Torque wrench