The BOSS® Brake Only Snag System system has been developed based on the experience with the SOS system that has been already installed in more than 200 container cranes world wide. Conventional hydraulic anti snag systems have only one fixed tripping point (pressure relief valve).

The BOSS® system is working with variable tripping points (each corner individually) depending on the actual corner load measurement and hoisting speed. The BOSS® PLC is pre-calculating the perfect tripping point for each load condition. Working with the best tripping points leads to faster snag detection and less stress in the wire ropes as well as in the crane structure.

• Profisafe Interface
• Fastest reaction time
• Precise control
• TÜV certified
• Cross-check of both channels from the load pins
• Simple calibration and set-up
• Fully integrated
• Closed wired system
• Dynamic snag trip point setting depending on corner load and speed
• No maintenance time required
• Easy retrofitable