Customised umbilical winches from MacArtney for complex offshore cable projects
Trenching umbilical winches allow for the deployment of underwater equipment with various cable types, allowing for both "over" and "under" cable spooling.
Greek Assodivers Underwater Contractors have taken delivery of two MERMAC winches from MacArtney: one 19.5-ton AHC (active heave compensation) winch and one 6-ton umbilical winch. These winches form part of a project relating to Denmark’s biggest offshore wind farm, Kriegers Flak, located in a shallow area in the Baltic Sea between Denmark, Sweden and Germany.
The AHC winch is intended to relocate huge stones from the seafloor, and the umbilical winch is used to pull a cable plough. Electric AHC winch solutions are often preferred for ROV systems and for handling equipment that operates near or on the seabed. Within this context, these MERMAC winches are used extensively by major work class ROV operators and service providers offering their customers optimal system safety and operational efficiency when being involved in the launch and recovery of ROVs, towed systems, corers, drills, ploughs, pumps, sonars, sensors, diving systems and a vast range of other equipment types. AHC immediately compensates for vessel movement caused by waves, even in heavy seas. This feature reduces weather-related downtime and considerably facilitates launch and recovery of tethered equipment.
Scope of supply
Representing multipurpose functions and properties, the MERMAC R40 winches integrate an adjustable level wind and exchangeable underwater cables. In addition, the scope of supply includes electrical slip rings, junction boxes, MRUs, extra level wind guide roller kits and wireless remote controls. The general design features a self-contained, all steel welded construction with a protection frame, drum, level wind, gearbox, electric motor and switchboard. Featuring high power and speed, minimal maintenance requirements, a rugged and compact design and a unique remote diagnostics tool, the MERMAC R40 umbilical winches are available in standard and custom configurations.
This is not the first time we’ve placed an order with MacArtney. Our business relations go further back and emphasise that we always rest assured of superior customer service and product quality from MacArtney, says Sarantos Konstantatos, Procurement Officer, Assodivers Underwater Contractors.
The MacArtney Underwater Technology Group is dedicated to maintaining a strong global presence. With 18 Group operations supplemented by a distributor network of 25 companies worldwide, MacArtney solutions are always available locally, with full global support.
