IHC Merwede has signed a new contract for the EPC (engineering, procurement and construction) delivery of an Active Heave Compensation (AHC) system for a new heavy lifting/pipelay vessel.

This advanced equipment will be designed, built and supplied for deepwater subsea installation of heavy modules in dynamic sea states.

Yantai Salvage Bureau

The integration of the active heave compensator and winch system will be placed on board the new-build heavy lifting/pipelaying vessel (with a 5000 mT crane), Yantai 5000, which is being constructed for the Yantai Salvage Bureau by Shanghai Zhenhua Heavy Industries (ZPMC) in China.

IHC Hytop

The AHC system package will be delivered by IHC Hytop, part of IHC Merwede, and consists of
the following equipment:

  • an active heave cylinder set;
  • the main HPU;
  • a 400 mT traction winch;
  • a storage winch for 3500 m of wire rope;
  • the complete drive and control system with motion reference unit; and
  • local control cabins.

Picture: Heavy lifting offshore (picture by Ken Doerr)