Cable Lay Vessel(Vard 9 01)
Owner: KDDI CABLESHIPS · Operator: MITSUI OSK LINES LTD.

KDDI Cable Infinity was built by Colombo Dockyard PLC in Sri Lanka for Kokusai Cable Ship Co. Ltd. of Japan and delivered on 21 June 2019. It was the largest and most complex vessel constructed by Colombo Dockyard at the time and the first cable-layer of its class built in Sri Lanka for a Japanese owner. More recently, registry data indicates that the vessel is owned by KDDI CABLESHIPS with Mitsui OSK Lines acting as commercial manager. Technically, the vessel is a diesel-electric DP2 cable layer of about 113 m length, 21.5 m breadth and 8.8 m depth, with deadweight around 5,757 tonnes and accommodation for 80 persons. It features a forward cable carousel for power cables (about 2,000-ton payload), twin 4 m drum cable engines with 40-ton haul-in capacity, DOHB linear cable engines, a 50-ton stern A-frame for plough deployment, additional A-frames for buoy and ROV handling, passive roll-reduction tanks, and low-resistance hull lines for fuel-efficient operation. Environmental systems include scrubber/SCR for IMO 2020 sulphur compliance, ballast water treatment, waste management and eco-subsea coatings. Market-wise, KDDI Cable Infinity is deployed worldwide, with a strong focus on East Asian waters, to install and repair subsea optical and power cables, serving telecom and power transmission projects that require precise station-keeping and modern cable-handling capability.
Diesel-electric propulsion powered by four generator sets of 2,300 kW each (total about 9.2 MW), supplying electric power to two azimuth propellers aft and a forward package of two tunnel thrusters plus one retractable azimuth thruster. All five thrusters are controllable-pitch with variable RPM, allowing optimization of pitch and speed for fuel economy and supporting DP2 station-keeping during cable-lay operations.