Demag
Hoist limit for Demag AC50-1
This hoist limit is a safety device designed for the Demag AC50-1 all-terrain crane. It monitors the position of the hook to prevent over-hoisting during lifting operations.
Compatible models
Specifications
- Part number
- 51553840
- Brand
- Demag
The hoist limit, part number 51553840, functions as a safety mechanism in crane systems by monitoring the vertical position of the hook. It automatically interrupts the hoist movement when the hook reaches a pre-established maximum height, preventing contact between the hook block and the boom head. This action protects the crane structure and the hoist cable from damage caused by over-winding or mechanical impact.
This component is engineered for the Demag AC50-1 all-terrain crane. It integrates with the crane control system to provide continuous feedback on hook position, ensuring that lifting operations remain within the defined safety parameters of the machine. The device is calibrated to match the specific operational requirements and maximum lift heights of the AC50-1 model.
Hoist limit switches serve as critical protection in heavy lifting equipment. By detecting the approach of the hook to the boom tip, these devices prevent the cable from over-tensioning and help avoid the risk of cable failure or load instability. Proper function of this limit is necessary to maintain the operational safety of the crane during daily use in construction and industrial lifting applications.

