Liebherr LHM 600 User Manual

Heavy Lift max. capacity 416 t

Job Report

Liebherr-MCCtec Rostock GmbH, Germany

LHM 600

Situation

The MTC 78000 is one of the largest offshore slewing cranes
world-wide. With a maximum dynamic torque of 78,000 mT, the
MTC 78000 is the most powerful machine within the extensive
range of cranes and material handling equipment offered by the
Liebherr group of companies.

Solution

Two LHM 600 mobile harbour cranes were used in tandem oper­ation for the heavy duty lifts. Sycratronic
to lift up to 416 t and to be operated simultaneously by one
crane driver. Conventional, manually-operated tandem lifts with
land-based cranes need to comply with international standards,
resulting in load capacity down rating of 25% and more.

Task

The onsite erection and assembly of this enormous crane on
the heavy load vessel OSA Goliath presented Liebherr engineers
with special challenges – for example, the planning of the indivi­dual hoists so that the maximum permitted ground pressure of
the pier was not exceeded.

Weight (t) 590

Capacity (t) 208

Capacity (t) 416 in tandem operation (via Sycratronic

Max. radius (m) 58

Opt. vessel size Capesize / Super Post-Panamax

Scope of supply includes 9.8 m tower extension

Performance

The assembly of the MTC 78000 required several spectacular
heavy duty lifts. First, the slewing platform, weighing 370 t, was
mounted, thereafter, the machinery compartment with the drive
components (approximately 240 t), the mast lower section (about
250 t) and the mast upper section (around 160 t). The hoisting
height of 43 m above pier level was made possible by equipping
the mobile harbour cranes with two corresponding tower exten­sions.

LHM 600

®

allows two LHM 600s

®

)

Liebherr-Werk Nenzing GmbH

P.O. Box 10, A-6710 Nenzing/Austria
Tel.: [phone]
Fax: [phone]
[e-mail]
www.liebherr.com

The Group