The use of liquid silicone rubber (LSR) is on the rise in the United States, specifically in the medical technology and automotive industries. Those markets are becoming increasingly interested in the physical and chemical properties of the material.
However, the material has an extremely low viscosity, especially with highly transparent silicone, and it requires high precision during injection. KraussMaffei (Florence, KY) will feature the PX 51-55 SilcoSet in booth W403 at NPE2018, running a four-cavity duckbill mold from M.R. Mold & Engineering (Brea, CA) that features a four-drop, valve-gated cold-runner system. The mold will run fully automatic with in-mold slitting done by a robot, manufactured by M.R. Mold. The robot provides a renewable surface for every slit to ensure accuracy. The products being molded are special dosing caps for the medical industry.
The molding machine’s combination of an electric injection unit and a hydraulic nozzle ensure high precision in every shot. The machine boasts an extremely safe screw-closing behavior, thanks to the spring-loaded return flow valve with a positive fit thanks to the PX clamping unit.
“The PX series combines the advantages of an all-electric injection molding machine with maximum modularity,” said Paul Caprio, President and CEO of KraussMaffei. “Our customers appreciate the high degree of variety and flexibility, both in configuring the right machine, for example, using our wide range of clamping unit and injection unit combinations, and in production or retrofitting.”