Hot runner is a heating component system used in injection molds to inject melted plastic particles into the cavity of the mold. 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 remove the runner and runner at each forming time. So the four characteristics of hot runner mold are as follows:

1. Save plastic

Pure hot runner mold has no cold runner, so there is no production cost. This is especially important for applications that use expensive plastics. In fact, in the era of expensive oil and plastic raw materials in the world, the world's major hot runner manufacturers have developed rapidly. Because hot runner technology is an effective way to reduce material costs.

2. Save waste

Reduce waste and improve product quality. During the molding process of hot runner mold, the temperature of plastic melt is precisely controlled in the runner system. The plastic can flow into each mold cavity in a more uniform state, resulting in the same quality of parts. The hot runner forming parts gate quality is good, the residual stress after demoulding is low, the parts deformation is small.

3. Shorten the cycle

The forming cycle of the part is shortened, and the part can be ejected in time after forming and curing, because there is no limitation of the cooling time of the runner system. The forming cycle of many thin-walled parts produced by hot runner molds can be less than 5 seconds.

4. Production automation

Elimination of subsequent processes is conducive to production automation. The finished product is formed by the hot runner mold, eliminating the need to trim the gate and recover the cold runner. Conducive to production automation. Many foreign product manufacturers combine hot runner with automation, which greatly improves production efficiency. Many advanced plastic molding processes are developed on the basis of hot runner technology. Such as PET preforming, multi-color co-injection in the MOLD, multi-material co-injection process, STACK MOLD and so on