Liebherr sells first set of knuckle boom cranes to China
» Two RL-K
4200-100 LIT with maximum lifting capacity of 100 tonnes
» Important
step for the positioning at the Chinese offshore market
» Innovative
self-designed pipe-handling equipment
April 2015 - Recently Liebherr offshore crane
division signed a ground-breaking contract with its long-time
partner DALIAN SHIPYARD (DSIC Offshore). Two state-of-the-art ram
luffing knuckle boom cranes of the type RL-K 4200-100 LIT will be
delivered for the new high-level semi-submersible „BT 4000“.
„We
have already successfully delivered around 40 machines to DSIC to date,
but this contract marks a new milestone for us at the Chinese offshore
market“, informs Gordon Clark, Sales Director of the Liebherr offshore
crane division. The cranes will have a maximum lifting capacity of up
to 100 tonnes and will mainly be used for pipe-handling and supporting
works on-board of the modern semisubmersible.
However, the cranes
may also be used for lifting goods from supply vessels to the platform
– even under rough sea conditions.
With its new foldable boom design,
accuracy is a major feature of the RL-K, significantly reducing sway
and swing motions of attached loads during all types of lifting
operations. All movements are controlled by an updated version of Liebherr
Litronic control system. It allows high-accuracy load manipulation
including digital control, storage and follow-up of all lifting data.
Innovative pipe-handling equipment
To top all this, the cranes
will be equipped with the newly developed pipe- and loadmanipulators
called ‘gripper yoke’ and ‘riser yoke’. The main feature of this modern
load/crane interface is the possibility to rotate the load ±360°and tilt
it ±10 degrees. This ensures a „soft, high-precision landing“, as
well as a firm connection of the load with the crane during handling
operations.
Modern test environment at Liebherr in Rostock
Currently, the cranes are being constructed at Liebherr`s modern
facilities in the harbour city of Rostock, northern Germany. To support
this new range of cranes, Liebherr developed an ultra-modern test
environment to load and function-test the cranes before delivery in
accordance with all relevant offshore regulations. This significantly
reduces the risk of problems on the customer’s job site. „It certainly
gives you peace of mind to have the equipment accurately tested with
our customer before shipment“, says Clark.
„With our excellent
transport facilities in Rostock, such as a 300 meter deep-waterquay for
sea-going vessels, loading the finished product on to an international
carrier means to be a perfect partner for our world-wide client base“,
he adds. „Using products of a well-known partner, such as Liebherr, is
significantly reducing our technical and commercial project risk. This
is certainly a priceless advantage that keeps our worries at the lowest
level possible“, comments Li ShaoXue, Dalian Shipyard (DSIC)
Procurement Director. „Many of the processes between us and our partner
Liebherr have been standardized,” he continues. ”It’s much simpler to talk
to friends“. DSIC`s new „BT 4000” semi-submersible is a new generation
DP3-vessel designed for efficient, light work-over and
well-intervention operations in water depths up to 2,400 m in
environmental offshore areas in Brazil, Gulf of Mexico, West Africa and
South East Asia.
„The rig is intended for efficient and fast
change-over between various well-intervention operations“, explains Li
ShaoXue. „… and, certainly, the Liebherr knuckle boom crane perfectly
accords with this philosophy“.
Source: Anne Siebke, Alexander Moosbrugger,
Liebherr Offshore Crane
Division www.liebherr.com
+ + +
Draft
of the first BT 4000 Light Workover semi-submersible with two Liebherr
RL-K4200-100 LIT build at DSIC Offshore, China. (Photo ©
Bassoe Technology AB)
Liebherr RLK 4200 ram luffing knuckle-boom crane pipe handling
Liebherr RL-K 4200-100 LIT with maximum lifting capacity of 100 tonnes.
Liebherr RL-K 4200-100 LIT is testing the riser yoke on the test bed of
MCCtec-Rostock GmbH
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