Following the success with LASE’s Truck Lifting Prevention on ASCs at SKCT Incheon, South Korea, the terminal has installed the system on six more cranes.
LASE commissioned its LaseTLP Truck Lifting Prevention system on eight double cantilever automated RMGs (ARMGs) at the Sun Kwang Container Terminal (SKCT) in the Port of Incheon earlier this year.
The system has now been commissioned on six HHMC ARMG cranes at the same terminal. Furthermore, in Q2 another 14 systems will be installed, bringing the total number of systems at SKCT to 28. Evidence a terminal operator is satisfied with a truck lifting prevention system is important, as there is still a lot of doubt in the market as to how effective these systems are.
Truck liftings occurs when any twistlock is locked or jammed and the contaienr is lifted still attached to its trailer. To detect and avoid this Lase uses two LASE 2000D-11x 2D laser scanners mounted on the side of the gantry with a vertical scan plane. They are not impeded by the 1.0m safety fence beside the truck lane.
“The mounting position of both laser scanners is in the middle of the crane in a height of approx. 1.5 m facing the truck lane. In the case that a truck is in front and the hoist lifts up the container, the measurement system detects whether the trailer is still connected to the container by any locked or jammed twistlock(s) - and stops the operation,” Lase notes.
One of the issues with systems to detect and prevent a truck lift by detecting the trailer wheels leaving the ground is this can be too late to prevent an unsafe situation. As Lase explains: “Other methods mostly use horizontal scan planes and look whether the wheels are up in the air or not. But just one connected twistlock makes it possible to lift up the truck cabin to a height of 4m before the trailer wheels will be lifted up, therefore the systems have a poor performance”. Lase adds that one of the biggest advantages of LaseTLP is its fast detection of the trailer lift, preventing both injuries and damage claims.