Electronic speed adaptation system, HDL-d/HD5

The HDL-d/HD5 is an electronic speed adaptation system, which ensures that the crane automatically adapts the speed to the current RCL loads or EVS angles.

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HD5 - The operating systems of the crane control the lifting speed and thereby the acceleration of the load independently of the crane operator (e.g. electronically controlled pressure-compensated proportional control valve.).


  • The dynamic additional forces in the steel construction of the crane are reduced
  • The crane's life span is extended
  •  In case of EVS angles, the reduced speed makes out an active part of securing the stability.