Remote control enables wireless operation of construction machinery outside the operator cabin. The operator carries a handheld transmitter or belly pack with joysticks and controls the machine via radio over distances up to 300 meters. This is particularly life-saving during demolition work in buildings at risk of collapse, work on steep slopes, or tunnel driving operations.
Modern remote control systems from manufacturers such as HBC-radiomatic, Hetronic, and Scanreco transmit all machine functions in real time: travel, slewing, boom, stick, bucket, auxiliary hydraulics, and engine control. The radio link operates encrypted in the 434-MHz or 2.4-GHz band with deadman switch and emergency stop as safety functions.
Particularly in the demolition sector, manufacturers such as Cat and Liebherr rely on remotely-controlled production excavators. The operator has optimal visibility of the work situation from a safe distance — often better than from the cabin. Autonomous excavator functions with camera monitoring and semi-automatic work programs are increasingly extending remote control toward teleoperation.