Hot runner injection molding is a metal casting process that uses heated molds and channels to inject molten plastic into the mold cavities. The runner system is the part of the mold that delivers the plastic from the sprue to the gate. In hot runner injection molding, the runner system is heated by a manifold system that keeps the plastic in a molten state throughout the cycle. This eliminates the need to separate and recycle the runner material after each cycle, resulting in less material waste and faster cycle time. Hot runner injection molding manufacturer can improve the productivity and performance by increasing the injection speed, which can fill the mold cavities faster and more evenly; reducing the cycle time, which can increase the output.