Twisting and wear of cables and hydraulic hoses is a risk when the spreader extends and retracts, and as the crane lifts and lowers the container, and downtime at a container terminal, is expensive and needs to be minimized – Catrac is an important tool.
We installed a 2006 Rotary Cam Limit Switch off of the cable drum to monitor the hoist travel and set the upper and lower limits to prevent overtravel.
Mounting a 955A Brik LDT with a floating magnet allows the OEM to accurately detect the position of the ram.
A simple geared rotary limit switch can easily save hundreds of thousands of dollars and prevent hours or even days of downtime due to overtravel.