Liebherr LHM 550 - Manual

Saqr Port
Arabian
Sea
[email protected]
facebook.com/LiebherrMaritime
www.liebherr.com
The Group
Bulk Handling SmartGrip
Intelligent grabbing
Job Report
Situation
Saqr Port is located at the northern tip of the United Arab Emirates,
with access to the Arabian Gulf, and is the Middle East’s major
port for bulk cargoes, aggregates, pipes, cement, coal and other
raw materials imported for the local industries. With its unique
geographic position and superior intermodal connections, Saqr
Port is also well-known for highly efficient material handling and
premium infrastructure. The port’s expertise has attracted additi-
onal business which has led to increased cargo volumes, over the
past 5 years.
Task
Saqr Port handles several materials with densities up to 2 t/m³
and loads on average around 5 ships per day. The most common
material is limestone, which is characterized by small rocks, and
when the grab is closed, some of these rocks are compressed
which results in intense shaking and stress for the crane structure,
due to strong dynamic forces. Thus, in order to minimize forces
acting on the crane structure a smaller grab (22m³) was used which
naturally reduces turnover.
Solution
Saqr Port decided to install SmartGrip on their newest mobile
harbour crane, type LHM 550, to cope better with limestone. This
innovative system optimises grab filling rates in a self-learning
process which results in more turnover, zero overloads and less
stress for crane and operator. For the new LHM 550, the Smart-
Grip parameters (e.g. closing speed, slack rope values) have been
specifically adapted for the rocky limestone material.
Performance
Thanks to the installation of SmartGrip, Saqr Port has been able
to use the bigger grab (32m³) without additional stress for the
crane structure and the average limestone load has increased by
more than 30%, leading to significantly more turnover. It also has
additional benefits, time-consuming overloads have been comple-
tely eliminated and due to very smooth force effects, shaking
has dramatically decreased, leading to more driver comfort and
extended life span of the crane.
Saqr Port, Ras Al Khaimah, UAE
LHM 550
LHM 550
Capacity (t) 124
Max. radius (m) 48
Scope of supply includes SmartGrip
„Installed in our new LHM 550, the innovative SmartGrip system provides valuable advantages. The system
optimises our grab operation and with zero overloads, it increases our turnover plus saves our crane struc-
ture, leading to longer life span of our equipment.“
Mr Philip Madin, Operations Manager Saqr Port