What is a hot runner injection mold?

In order to promote the flow of plastic melt in the mold cavity, the main runner and branch runner are heated by appropriate methods to keep the plastic in a molten state. The structure of continuous injection molding is the hot runner system. Intuitively speaking, without the handle part of the traditional injection mold, the use of hot runner can save raw materials, improve production efficiency, and make raw materials 100% productized, thus reducing the defects caused by secondary materials, improving product quality (product pressure and internal stress), prolonging mold life, improving pressure holding efficiency and reducing injection time. The disadvantage is that the cost of mold rises, maintenance and warranty need professionals, and mold design should be fully tested!