Cleveland — Molded-in metal inserts can cause a weak point in rotationally molded parts, but Rotaloc-brand inserts have a flat, wide base to distribute the stress throughout the part, according to a speaker at the Society of Plastics Engineers Rotational Molding Conference.
Glenn Larkin, technical service representative for rotomolding at Chevron Phillips Chemical Co., described simulation tests of how Rotaloc inserts perform. Rotaloc International LLC in Littleton, Colo., makes the inserts.
Larkin compared the design features of several types of inserts. He said Rotaloc inserts perform well in the simulation tests.