KRÖGER, Motor-Powered Grabs


Handling of all types of bulk loads in seaports, inland harbours and storage yards. Ship-to-ship, ship-to-store/railway wagon/silo handling. For a wide variety of crane installations with controls designed for powered hydraulic grab operation.


  • As a loading grab and ship unloading grab with recessed jaw pivot points for operation below the ship’s gang board
  • Optimum utilisation of the crane load capacity thanks to weight-optimised design with maximum possible volume
  • Grab drive:
  • vertically arranged electro-hydraulic drive unit with high-pressure pump
  • Opening and closing motions controlled by clockwise and anti-clockwise electric motor operation (reversing control).
  • The electric motor is only switched on during the opening and closing motions.
  • Grab hinge bearings:
  • rugged steel-bush bearing, for re-lubrication
  • rigid, torsionally stiff design by means of direct cylinder pivots
  • Grab jaws:
  • jaw design adapted to the material flow
  • Material: S355J2+N
  • Grab hinge bearings:
  • KRÖGER bearing system of low or ZERO-maintenance design


You can ask your questions to us about TYPE MZG
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