Riser and mooring line pull-in systems

Safe and controlled installation of production risers, flow lines and mooring chains for spread or turret moored floating production units

We supply tailor-made riser pull-in systems comprising custom pull-in winches, turndown sheave trolleys, winch-skidding systems, traction-winch systems, hydraulic power units and dedicated control systems.

  • In-house electrical, mechanical and hydraulic engineering
  • Worldwide service network
  • Local content
  • Proven design

Riser and mooring pull-in winch

Designed for the harsh conditions of the offshore industry, we can supply any winch to meet your requirements.

Royal IHC rotary-drum winches are available up to a line pull of 650mT in a horizontal or vertical pulling direction. We offer various options, such as: single or multi-layer; with or without spooling device; flat or (LEBUS) grooved drums; with or without control consoles; suitable for steel wire rope or synthetic rope; and electric - or hydraulic - driven.

Designed according to class, rules and regulations, our systems are certified for operations in hazardous (Ex) areas.

Turndown sheave trolley

Our turndown sheave trolleys are custom-built installations that combine several of our technologies into one autonomic system dedicated for riser handling.

The trolley position can be adjusted in a longitudinal direction alongside the vessel to ensure vertical riser pulling on multiple riser slots, which are predominantly found on spread-moored vessels.

Typical features:

  • skidding shoes
  • diverter sheaves
  • hydraulic locking device
  • tugger winches
  • push-pull units
  • control system.

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