A hot runner is a set of heating components used in injection molds to inject molten plastic into the cavity of the mold.
Principle:
Hot runner mold is a new structure that heats the runner and runner of traditional mold or three plate mold, and does not need to take out runner and runner during each forming.
Although hot runner molds have many significant advantages compared to cold runner molds, mold users also need to understand the drawbacks of hot runner molds. In summary, there are the following points. The cost increases, and the price of hot runner components is relatively expensive, which may significantly increase the cost of hot runner molds. If the production of parts is small and the cost of mold tools is high, it is not economically cost-effective.