A novel system that provides early detection of leakage in hot-runner systems has been developed by WF Plastic Technology & Service GmbH, Ludenscheid, Germany.

A novel system that provides early detection of leakage in hot-runner systems has been developed by WF Plastic Technology & Service GmbH, Ludenscheid, Germany. The company’s new Mold Protection System (MPS) does not interrupt production. It is especially suited to fault-prone tools and operational validation of repaired tools. MPS comprises four to six pressure sensors and monitoring nozzles, a small compressed-air unit, and a small control box. The monitoring nozzles are installed 0.4 to 0.8 mm apart along the runner system at positions where leakage might occur. Melt escaping from the leakage position closes off a monitoring nozzle, which is detected by the air-pressure sensor, and a message appears on the control device. Tel: +49 2351 66306 0 • www.wf-plastic.de