Do certain kinds of cranes require anti-two block systems? Anti-two block systems are crucial safety features primarily used in cranes and lifting equipment where there is a risk of two-blocking, which can lead to accidents, equipment damage, or injury. Here are the types of cranes that typically require the use of anti-two block systems:

Mobile Cranes

  • Types: This category includes truck-mounted cranes, all-terrain cranes, and crawler cranes.
  • Need for Safety: Mobile cranes are often used in various environments and can lift heavy loads to significant heights, making them susceptible to two-blocking, especially during extended boom operations.

Tower Cranes

  • Functionality: Tower cranes are commonly used in construction sites for lifting heavy materials. Their fixed height and rotating capabilities make them prone to two-blocking during operation.
  • Safety Implementation: Anti-two block systems are vital to prevent the hook from making contact with the upper block or the tower itself.

Overhead Cranes (Bridge Cranes)

  • Design: These cranes are typically found in warehouses and manufacturing facilities, moving along a fixed track. They can lift and move heavy loads across a defined area.
  • Risk Factor: Overhead cranes can experience two-blocking if the lifting mechanism is not adequately monitored, especially when lifting loads to their maximum height.

Gantry Cranes

  • Configuration: Similar to overhead cranes but with a freestanding structure, gantry cranes are often used in shipyards, construction sites, and large industrial settings.
  • Preventative Measures: An anti-two block system helps ensure safe lifting operations, particularly when lifting loads near their maximum height.

Lattice Boom Cranes

  • Structure: These cranes have a lattice structure that makes them lightweight yet strong. They can be used in construction, oil fields, and other heavy lifting applications.
  • Need for Anti-Two Block: Given their long reach and potential for high lifts, these cranes require anti-two block systems to avoid risks associated with two-blocking.

Jib Cranes

  • Application: Jib cranes are often used in warehouses and small manufacturing settings. They consist of a horizontal arm (jib) that lifts materials at a pivot point.
  • Safety Protocol: To avoid two-blocking when the load reaches the top of the jib, these cranes should be equipped with an anti-two block system.

A-Frame Cranes

  • Design: A-frame cranes are typically used in construction and manufacturing environments for lifting heavy loads.
  • Safety Requirement: Like other crane types, they benefit from an anti-two block system to prevent accidents during operations.

Conclusion

Anti-two block systems are essential safety devices for various types of cranes, particularly those used in construction, manufacturing, and heavy lifting environments. By implementing these systems, operators can significantly reduce the risk of accidents and protect both personnel and equipment. It’s crucial to ensure that all lifting equipment is equipped with appropriate safety measures, including anti-two block systems, to comply with safety regulations and standards.

Anti-two block system for cranes

Anti-two block systems for cranes

How LiFTek can help you?

The LIFTek L25 Wireless Anti-Two-Block System is built to last. Most are in service for 10-15 years. Easy to repair in the field (not a throw away product!). Simple operation and installation. Universal fit on any crane or hoist. Best value – total operating cost – about 7 cents per hour. Change battery once every 5 years. Same Day Shipping on systems, parts and repairs. Immediate technical support. Call 1-888-LIFTek8. The L25 is made in the USA and is the choice of major OEMs like Terex, National, Manitex and others  Please click here to learn more about Crane Anti-Two Block Systems.