The Engineers Guide - Passive Heave Compensators and Shock Absorbers

The Engineers Guide has been written to clear up some misunderstandings concerning use of shock absorbers and passive heave compensators in the offshore industry. Our philosophy is that there should be no doubt about how the units work and what they do. In this guide we provide both simplified guidelines in form of tables and drawings, and more advanced theory in form of equations.

All the current Safelink units are presented with technical specifications.

We hope you get something useful out of this guide. If you have any comments or recommendations please do not hesitate to contact us.


  • Crane Basics
  • Basic Theoretical Foundation
  • Offshore Load Charts
  • Passive Heave Compensation
  • Wave Zone
  • Overload Protection
  • Wet Tow
  • Safelink Units

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