Mammoet’s SK6000 super-heavy lift ring crane has been tested for full-electric operation.
The SK6000 can now operate directly from grid power – or, at sites without power network access or with supply stability issues – via batteries or hydrogen generators. Testing was carried out using two 600kWh battery boxes supplied by Bredenoord, connected in series to deliver 1,200kWh – around the same output as 20 electric cars.
Mammoet said connection took a day shift to complete, in parallel with test weight reconfiguration activity, proving that the use of batteries has minimal impact on site operations. It added that the battery packs capable of operating the SK6000 are becoming widely available, in standard 20 ft shipping containers.
“Thanks to this test we can now say that the SK6000 operates fully zero-emissions onsite,” said Niek Bezuijen, global sustainability advisor at Mammoet.
The company added that by plugging into a medium voltage network – commonly available in heavy industry – the SK operates directly from the grid. At port facilities, with shore power connections are capable of powering the crane.
