Ribs & Curves
Ribs are very effective at adding strength to parts. Ribs can be designed to support expected forces in nearly any direction. Sidewalls can be ribbed to add stacking strength. Panels can be ribbed to improve stiffness and control sag. For best results, ribs should weld inner and outer walls together in controlled intervals. The rib location and length must also be such that a hinging action won’t develop when loads are applied. By alternating rib directions in non-uniform patterns, ribs create excellent stiffness and the ability to support loads.

Circles and arches create some of the strongest structures. By combining curvature with ribs and weld cones, lightweight plastic parts can become stronger than steel. Custom-Pak engineers can help with design evaluation and testing so you can be sure you will achieve the results you are seeking. Our assistance is confidential and free.