Dorman Long Technology
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DLT Hydraulic Gantries
Our hydraulic gantries are designed for maximum stability and safety in operation, and have a maximum of 66% tipping at full extension with 5% side load applied at the top and a 1% track slope in any direction. We have four sizes available, 200 te per unit (DL-TLG200), 400 te per unit (DL-TLG400), 600te per unit (DL-TLG600) and 1200 te per unit (DL-TLG1200), our sizes correspond to net under the hook capacity. These units are used in pairs with a cross beam to make up a lifting frame of up to 600 tonnes capacity and up to 4 No frames can be used together to make up a lifting system of up to 2,400 tonnes lifting capacity. The main features of our hydraulic gantries are as follows:
  • Expandable base width to provide a maximum of 66% tipping at full extension under 5% side load and 1% track slope in any direction.
  • Telescopic ram designed for regular use with 5% side load at full extension.
  • Fully welded base frame for maximum rigidity under side load
  • Constant extend and retract speeds, regardless of ram stage, allowing the units to be supported at different heights
  • Chain drive used for secure cross travel, designed to stop runaway of the load with a cross beam slope of up to 15%
  • Hydraulic direct drive to the wheels for smooth start/stop
  • Transport in standard open top shipping containers
  • Wireless central control, with manual back up at each unit.  Stroke/pressure sensors and comprehensive overload safety features
  • Foldable ram for transport with hydraulic turning system.
Summary of maximum lifting capacities for 4 leg systems as shown below, allowing for 5% side load and 1% track slope:

DL-TLG1200

Stage 1                        Max height under lifting shackle = 6.520 m                         Max lift load = 1156 MT
Stage 2                        Max height under lifting shackle = 9.320 m                         Max lift load = 736 MT
Stage 3                        Max height under lifting shackle = 11.520 m                       Max lift load = 428 MT

DL-TLG600
Stage 1                        Max height under lifting shackle = 4.952 m                         Max lift load = 569 MT
Stage 2                        Max height under lifting shackle = 6.952 m                         Max lift load = 569 MT
Stage 3                        Max height under lifting shackle = 8.552 m                         Max lift load = 369 MT

DL-TLG400
Stage 1                        Max height under lifting shackle = 5.282 m                         Max lift load = 380 MT
Stage 2                        Max height under lifting shackle = 7.282 m                         Max lift load = 380 MT
Stage 3                        Max height under lifting shackle = 8.782 m                         Max lift load = 260 MT

DL-TLG200
Stage 2                        Max height under litfing shackle = 6.725 m                         Max lift load = 184 MT



DL-TLG400 units during 125% load test

DL-TLG hydraulic gantry DL-TLG400 units during operation