1. shorten the molding cycle
Because there is no restriction on the cooling time of the runner system, the parts can be ejected in a timely manner after being cured. Many thin-walled parts produced with hot runner molds can be molded for less than 5 seconds.
2. save plastic raw materials
Because there is no cold sprue in the pure hot runner mould, there is no production cost. This is particularly significant for plastics expensive applications. In fact, the major hot runner manufacturers in the world have been developing rapidly in the world when petroleum and plastic raw materials are expensive. Because hot runner technology is an effective way to reduce material costs and material costs.
3. reduce waste, improve product quality
In the hot runner moulding process, the temperature of the plastic melt is accurately controlled in the runner system. Plastics can flow into the mold cavities in a more uniform state. The result is consistent parts. Hot runner molding parts have good quality, low residual stress after demoulding, and small parts deformation. Therefore, many high-quality products on the market are produced by hot runner molds. Many familiar plastic parts such as MOTOROLA mobile phones, HP printers, and DELL laptops are manufactured using hot runner molds.
4. eliminate the follow-up process, is conducive to production automation.
After the parts are molded by the hot runner mold, they will be finished products, and there is no need to trim the gates and recycle the cold runners. It is conducive to production automation. Many foreign product manufacturers combine hot runners with automation to greatly increase production efficiency.
5. Expand the application of injection molding process
Many advanced plastic molding processes are based on hot runner technology. Such as PET preform production, multi-color co-injection in the mold, a variety of materials co-injection process, STACK MOLD and so on.