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2HLE Advanced Height Limiter

GDK Technic manufacture safety technology for construction machinery and people working around plant.  GDK height and slew limiting systems are simple to use, excellent value for money and allow for full hydraulic cutout as an option. GDK height and slew limiting systems should be used if you are working under powerlines with an excavator, working in confined spacing and need to limit slew on your machine or want to reliably notify machine operators when your personal are working close to machinery (without relying on the operator watching a video screen).  Talk to your Global Survey Machine Control specialist today about how solutions from GDK can help solve your safety problems.

Simple, accurate, cost effective advanced height limiting system, suitable for self-installation. The advanced height limiter is designed to protect workers from overhead danger when operating in restricted conditions, it is often difficult for the operator to judge the actual height of the machine or the position of the booms from the cab. This can result in collision with roofs, walls, bridges and gantries or overhead wires, in many cases causing expensive damage to the machine, third party claims for structures or in the worst-case fatalities from electrocution.

The advanced height limiter is a more sophisticated height limiting system designed to monitor and control the operating height of multi-boom equipment.

APPLICATION: The advanced system has been developed for use in the construction and utility maintenance industries for use on machines such as excavators, wheel and backhoe loaders, telehandlers and other articulated machines operating in restricted conditions.

HOW IT WORKS: The machine operator has the option of setting the height by entering the limit on the operator station display or moving the machine to maximum height. The 2HLE calculates the highest point of the machine and compares it to the limit, triggering motion cut when the limit is exceeded.
There is also the 2HLE-R variant for road rail applications, adapting in the same way as our 1HLI-R system, the 2HLE-R provides advanced height limiting for rail applications.

    As the left or right slew limit is reached a hydraulic solenoid valve is released to cut off the relevant slew hydraulic service, and therefore prevent the machine from entering the exclusion zone. Slew operation in the opposite direction, back into the “safe” zone, is still permitted.

    The system can be installed by any competent engineer, and there is no calibration required.