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SECH starts on harbour project

Specialist rental company SECH is using its Kobelco CKE3000G crawler crane on its first major lifting and foundations contract in Portsmouth Harbour, having arrived at the site by barge in November. It is the largest Kobelco CKE series crawler working in Europe, the Japanese manufacturer said.

The Knights Brown project is a £19 million (US$ 25 million) investment in cruise and ferry facilities, including increasing the length of the cruise berth to accommodate ships up to 255 metres long. Bigger ships and more of them will help the port achieve its ambition of tripling the number of cruise passengers using the port.

Matt Cox, SECH managing director, said, “This first major contract highlights the CKE3000G’s excellent drum and slewing speeds, making it a very nimble crane for its size. It’s also a very solid, well-engineered machine, which makes it ideal for tunnelling, foundation and marine work, and I look forward to being able to take on yet more new and interesting work across the UK.”

Photos of Kobelco CKE3000G on the barge
Kobelco CKE3000G on the barge

Transport to the site from the SECH yard in Essex, south-east England, was on eight low loaders, with the first four taking the base machine, two crawler frames and car body counterweight to Southampton docks on the south coast. After assembling the components with the help of a yard crane, the crane was driven onto a barge.

When the jib sections and counterweights arrived the crane’s own rigging was used to complete the assembly. After a four hour tow to Portsmouth, the crane was put straight to work.

It lifted a BSP CG300 hydraulic pile-driving hammer, which has a drop weight of 20 tonnes, a 16-tonne shroud and a maximum impact weight of 300 tonnes. The CG300 is driving 21 piles, up to 33 metres long and 1.2 metres in diameter, into the seabed. Up to 14 metres of the pile will sit below water, with 3 metres out of the waterline and 16 metres into the seabed.

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