Hot runner technology

The program is completed with a wide variety of hot runner technologies and nozzle series for the melt flow of the injection molding machines directly into the mold cavity. 

The use of the hot runner technology allows only certain component geometries and mold concepts. With hot runner systems, gating positions are achieved that cannot be reached conventionally the active movement or complete avoidance of fill lines can be implemented by sequential injection multi-component injection molding can be performed with up to five materials in a mold high-speed stack molds can be built film and fabric can be back injected gas and water injection technology can be implemented multi-cavity molds can be realized clean room production can be optimized and the co-injection technique can be enabled. 

As an alternative to the conventional injection system, cold runner systems are coming more and more into use in the processing of liquid silicone. These systems may be compared with the hot runner technology found in thermoplastic processing. 

PVC Makes Progress in Hot Runners, Structural Blow Molding. Plastics Technology, pp. 15-17, Mar. 1990. 

J. Dziewulski, Examples of Use of Thermoplastics with a High Thermal Resistance in Hot Runner Injection Moulding Technology. TS Raport, 1997, No. 3. [In Polish]. 

Injection molding technology involves the injection of molten plastic into one or several cavities via a hot-runner system (melt-channel distribution system) and rapid cooling of a preform to a low temperature. At this point the freshly manufactured article can be ejected from the cavity. In multilayer technology, more than one plastic resin is injected into the cavity. 

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