An open hot runner is a mold component used to control the flow and filling of plastic into the mold cavity. It is typically installed at the mold's inlet or runner system, injecting plastic materials into the mold cavity through heating and pressure.

The open hot nozzle is composed of multiple parts, including the nozzle head, heating coil, heating element, and control circuit, etc.

The hot nozzle is the main part of the hot runner, featuring a nozzle opening for controlling the flow and filling of plastic. The heating ring and heating elements are used to heat and regulate the temperature of the hot nozzle to ensure smooth flow and filling of the plastic. The control circuit is utilized to manage the temperature and heating duration of the heating elements, achieving precise temperature control.

The open hot nozzle boasts various advantages, such as:

Strong controllability: By regulating the temperature and heating time of the heating element, the flow and filling of plastic can be controlled, thereby enhancing the precision and quality of injection-molded products.

Wide Adaptability: The open-type hot nozzle is suitable for various plastic materials and processing techniques, allowing for adjustments and optimizations based on different materials and processes.

High production efficiency: With controlled plastic flow and filling, injection molding cycles can be shortened and production efficiency can be improved.

Ease of Maintenance: In the event of a nozzle replacement or repair, it can be conveniently dismantled and installed without affecting the structure and integrity of the entire mold.