Hot Runner Adapted For Injection-Blow

R&D Tool and Engineering, Lee’s Summit, Mo., has adapted its proprietary hot-runner systems for injection-blow molding.

R&D Tool and Engineering, Lee’s Summit, Mo., has adapted its proprietary hot-runner systems for injection-blow molding. The Genesis system was originally launched for single-stage injection stretch-blow molding. It is now aimed at Uniloy Milacron and Jomar injection-blow machines. The Genesis system has a diametrical nozzle design for positive tip alignment. No manifold clamp load and no crush ring are required at the tip. An internal preset metering device reportedly balances filling within 95% and allows fast, easy color change. Computer simulation analysis is performed on each system, resulting in excellent temperature uniformity (within 5° F/3° C), the company says. Patented “short gate” technology is said to provide an optimal vestige on the finished container, and the manifold block is designed for minimal contact with outside surfaces, minimizing heat loss.