Motor grab – type MZG port (port handling)


Bulk handling of any kind in sea and inland ports or storage facilities. For ship-to-ship, ship-to-storage/wagon/silo handling. For various types of crane with control systems designed for hydraulic motor grab systems.

Technical design

  • Designed as a discharge and ship unloading grab with retracted pivot bearings for easy gripping under the ship’s gangway
  • Optimisation of crane load capacity thanks to its lightweight design which can hold maximum loads
  • Grab drive:
    • Vertical electrohydraulic drive unit with high-pressure pump
    • Closing and opening movements are controlled through clockwise or counter clockwise rotation of the electric motor (turn control).
  • The electric motor is only switched on whilst the closing and opening movement is being performed.
  • Grab connection bearing:
    • Re-greaseable steel bushing bearing
    • Stable, torsion-resistant design using direct cylinder linkage
  • Grab shells:
    • Shell design adapted to material flow
    • Material: S355J2+N
  • Grab connection bearing:
    • KRÖGER MAINTENANCE-FREE bearing system

Product sheet

Motor grab – type MZG

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