Gardner Business Media

Hot Runner Technology OCT 2017

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October 2017 19 Retlaw says pulleys molded utilizing Osco's three-drop hot-runner system (photo right) have better surface finish and are more dimensionally stable than pulleys molded using a prior six-drop cold runner system. Eberhardt says that since making the shift to hot runners, Retlaw has noticed a 6 percent improvement in molding cycles and better part quality. What's more, he says, "we don't run the granulator anymore because there's noth- ing to regrind." The molder used to run pulleys For More Information: Retlaw Industries Inc. / 262-367-2230 / Osco Inc. / 800-499-6726 / CONTRIBUTOR: Jim Callari is editorial director and associate publisher of Plastics Technology magazine. on 310-ton presses because of the size of the tool. Now, it molds the same parts on 200-ton presses, which saves energy. What's next for Retlaw and hot runners? "Our goal is to take all existing tooling for our line of pulleys and retrofit them to accommo- date hot runners," Eberhardt says. "If we find that retrofitting is not possible, then we will build new tooling as we move forward to accommodate hot-runner technology." / HR Our extensive spare parts inventory and ability to reverse engineer allows us to offer the widest range of parts in the industry in the shortest time. 1-908-281-0055 see more at:

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