Hot Runner Systems

For over two decades, Polyshot Corporation has specialized in delivering advanced hot runner system solutions to the injection molding industry worldwide. Our cutting-edge hot runner technology ensures a reliable hot runner for processing molten plastic efficiently in the molding machine.

Hot runners consist of a core molding plate, hot runner components, and a temperature controller that maintains optimal conditions for the hot runner mold during the injection molding process. The injection molding machine nozzle connects to the hot runner system, ensuring seamless integration, efficient cycle time management, and maximizing the hot runner advantages in the process.

Plate Fusion Technology, our innovative construction method, seamlessly fuses multiple layers, creating perfectly round and smooth flow paths, enhancing the performance of the manifold in the hot runner. This technology eliminates abrupt 90-degree turns and turn plugs in the heated manifold, contributing to reduced plastic waste and an optimized molding process.

Polyshot is the only company constructing 100% of its hot runners using this advanced technology.

A hot runner system in injection molding replaces traditional cold runners by internally heating and delivering molten plastic directly into mold cavities, significantly reducing cycle time, plastic waste, and energy consumption for a more sustainable injection molding process.

Unlike cold runner systems, hot runners are particularly effective in high-volume production scenarios where precision and efficiency are paramount.

Hot tip technology further optimizes the injection molding process, ensuring precise control of the molten flow into plastic injection molds for accurate mold cavity filling.

Read our What Is a Hot Runner? – Complete Guide.