Liebherr Rubber tyre gantry cranes (RTG) - Manual (Page 2)

Dimensions
2 Rubber Tyre Gantry Crane
RTG Model Range*
RTG Model Designation (example)
Design Parameters
7 / 5 / 4 / WS
AC Drive
4 wheels per corner
1 over 5 high stacking
7 containers wide + truck lane
Classification according F.E.M. U7-Q2-A7 (Singlelift)
In service wind speed 72km/h
Out of service wind speed 150km/h
Maximum yard slope 1:100 in either direction
Self weight (model dependent) 116t - 138t
A Typical Gantry Span 20.8m for 5 wide + truck lane
23.6m for 6 wide + truck lane
26.5m for 7 wide + truck lane
B Lifting Heights 12.3m for 1 over 3
15.2m for 1 over 4
18.2m for 1 over 5
21.0m for 1 over 6
C Travel Wheel Gauge 9.2m
D Equaliser Length 2.5m
E Length over travel guards 13.3m for 4 wheels per corner
13.7m for 2 wheels per corner
F Trolley travel Gantry span minus end approach
G Trolley end approach 2.40m
H Trolley end approach 2.25m
* other features and dimensions also available
Gantry Travel System
Rubber Tyre Gantry Crane 3
Liebherr Anti - Sway System
Eight Rope Reeving
Advantages by Design
Minimal spreader positioning times
Anti - Sway: Trolley & Travel direction
Anti - Skew
Trim and Skew spreader positioning
No Additional Ropes or Devices necessary
No head block - Reduced rope load and tare weight
Lower energy consumption
All Electrical Spreader - Less maintenance
Increase in Productivity of between 30 - 40% when compared to alternative designs.
Features
Direct Driven, No Chain Drive
Gantry travel with load
Wheels hydraulically locked
Motors
4 motors on 16 wheeler
Reduced tyre wear with differential axles allowing
Wheels to rotate during 90° turn
2 motors on 8 wheeler