400 tons Liebherr lattice boom offshore crane
LIEBHERR BOS 6500 OFFSHORE CRANE – SWL 200/400 MTON
Liebherr BOS 6500 offshore crane (6500/400)
Built: 1986 / fully rebuilt: 2003
200 / 400 ton SWL with full counterweight
28 meter boom (200 ton SWL without counterweight)
40 meter boom – maximum radius 56 meter
8 fall / 620 meter subsea
2 fall / 2620 meter subsea
Constant Tension System
The crane was previously installed on a semi-submersible platform and can either be operated in standard set-up (max. SWL 200 Te), or alternatively with counter-ballast (max. SWL 400 Te). The max. operation radius is 56 m with long boom aux. hoist with 10 Te SWL.
Current SWL capacity with Main Hoist and long boom (rigged up as shown on pictures):
182 Te / 11 – 20 m
160 Te / 11 – 25 m
100 Te / 11 – 40 m
10 Te / 15 – 56 m (aux. hoist)
The crane can also perform sealifts (subsea construction) with 400 Te SWL at 600 m depth and e.g. 300 Te at 800 depth.
Lift Height with 8 fall/620 m, with 2 fall/2620 m
It is equipped with a Variable Constant Tension System.
The crane was totally refurbished and received an extensive upgrade by Liebherr in 2003, including installation of a new cabin, new control system, upgrade of the power pack etc.). The crane with load control system was upgraded to EU Standard EN 13852-1 in 2009. The crane was last time certified by LRS in Sept. 2011.
The crane is a well maintained machine in very good condition with excellent performance record.
The crane has counters on each function recording actual operating hours, see below:
Main motors approx – 1200hrs
Slew – 307 hrs
Main hoist – 75 hrs
Aux hoist – 235 hrs
Luff – 310 hrs
Tugger 1 – 320 hrs
Tugger 2 – 67 hrs
The above hours have been recorded since the cranes major overhaul back in 2003, all evident on the crane software and the Platform Maintenance Management System. This should be sufficient evidence that there should be no requirement to replace any major components such as slew bearing, winch motors, pinions, bearings, etc… The crane ropes would have to be replaced. In addition to the above the crane would also come with a full upgrade package for emergency operation supplied by Liebherr, however, this kit was never installed to the crane.
Diameter of pedestal: 5020 mm Ø
Wall thickness of pedestal: 40 mm
Bolt hole circle C – C: 4745 mm Ø
Crane house with chassis and A-frame: 140 tonn
Boom (long version): 119 tonn
Pedestal below slew bearing: 34 tonn
The crane was removed from the vessel in April 2013 and is in very good condition..
The crane house and boom can be broken down in lighter pieces if required before shipping.
Price: on request