Lifting Spreader Bar Design

How to design a spreader bar.

Lifting spreader bar design.

It covers all aspects of the selection design manufacture verification testing repair modification storage inspection and safe use of lifting beams and spreader beams. A lifting beam is under pressure at the single lifting point and therefore subject to shear and bending while a spreader beam is designed to work under compression and spread the load out evenly over a. Spreader bars lifting spreaders are a very simple device and consist of a long bar that functions to hold a sling apart to the lifting distance. All liftmax spreader bars come standard with stainless steel data plates with individual serial numbers and rfid tracking and are proof tested to 125.

The table of contents next page lists the sections covered and contains links to each section. Design and construction of lifting beams david t. Lifting beam spreader bar design. The basic lifting beam is shown in fig.

Spreader bar lifting device calculations and design spreader bar lifting device calculations and design. Get a fast quote today. Custom liftmax telescoping spreader bar. We are the lifting equipment design specialists geared specifically for building custom lifting devices according to the asme bth 1 design standard and asme b30 20 below the hook standards.

Meets or exceeds asme. Ricker lifting beams also known as spreader beams are used to assist in the hoisting process. Verification of spreader beams lifting beams and lifting frames. 6 quickies for rigging engineers lifting beams and spreader bars have become an integral part of complex crane rigging and lifting activities.

Variations in the design of the multi lift spreader bar evolve over a period of time as requirements and technology change and the demand for a more efficient product is desired. Some common profiles are shown in fig. This website stores cookies on your computer. The main difference between a lifting beam and a spreader bar is the design which dictates the way the force is transmitted during the lift.

Tubular design with adjustable pins for overhead lifting. Sparta s approach to optimizing the spreader bar design otherwise known as lifting bar or lifting beam is an iterative process. Safe working load swl spreading length safety factor in compression yield stress of the beam material allowable tensile stress. In response a large below the hook lifting devices market has grown supporting projects with some exceptional solutions see modulift liftmax caldwell.

Most erectors and riggers accumulate an assortment of lifting beams during the course of time.