Design Of Lifting Beam . Lifting Beam Design & Custom Solutions - Modulift Specialist lifting equipment from Modulift. Custom and bespoke manufactured lifting spreader beam design within 4 to 6 weeks plus free worldwide shipping. Spreader Bar Design Process - A guide to designing lifting How to Design a Spreader Bar. Sparta's approach to optimizing the spreader bar design (otherwise known as lifting bar or lifting beam) is an iterative process.