Anti-Two-Block switch for Link-Belt HC238H

The B5L0023 Anti-Two-Block switch acts as a safety sensor for the Link-Belt HC238H crawler crane. It monitors the position of the hook block relative to the boom tip, sending a signal to the crane control system to halt hoisting or extension movements if the block comes too close to the boom head, thereby preventing a two-block collision.

This component is specifically engineered for the Link-Belt HC238H model. It integrates into the crane safety system to ensure that automatic stops are triggered during operation. The switch is mounted at the boom point and is designed to interface with the crane's existing electrical architecture.

Anti-two-block systems are standard safety features on mobile cranes. They utilize a sensor mechanism that is activated by physical contact with the hook block or weight. When triggered, the switch interrupts the control circuit, preventing further travel of the hoist line or boom extension. Regular testing and maintenance of these switches are standard procedures to ensure the continued integrity of the crane's safety systems and to prevent structural damage to the boom or hoisting equipment.