Planning a lifting operation: 3 factors to consider 1. Spreader barĪ spreader bar is a below-the-hook lifting device that stabilizes and supports the load, minimizing damage to the load and other pieces of rigging hardware. Lifting SlingsĪ lifting sling comprises a cable, rope or chain used in conjunction with a crane to secure the load and facilitate lifting operations. In addition, hooks typically withstand more twisting force than shackles, making them ideal for material handling applications that feature high torque. Hooks have a more basic design than shackles and are easier to set up. Hooks are quite similar to shackles in function, but they differ in design and application requirements. They have a U-shape with a clevis pin or bolt securing the opening, as shown in Figure 2 below.įigure 2. Shackles connect rigging hardware, slings, chain, lifting devices and other rigging components to the load. These pieces of equipment include shackles, hooks, slings, ropes, chains and spreader bars. Types of rigging equipmentįor any operation that uses a crane to lift materials, rigging equipment is used to attach the load to the crane. There are several things an engineer must know and several factors that a rigger must consider when planning a lifting operation. But as simple as cranes might seem to operate, a lot of work and effort goes into planning a lifting operation.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |