Hot runners are already indispensable in injection molding production. For plastic processors, choosing the hot runner that is suitable for product molding and mastering the correct use of the hot runner is the key to benefit from the hot runner.

Hot runner (HRS) is also called hot gate, which turns the solidified nozzle into a molten nozzle, and its composition is relatively simple, mainly including a diverter plate, a hot nozzle, and a thermostat. Among them, the shunt plate can be divided into I-shape, X-shape, Y-shape, T-shape, mouth shape and other special shapes according to the shape; the heat nozzle can be divided into the large nozzle, the tip nozzle, and the needle valve nozzle according to the shape; the temperature controller according to the temperature control The methods can be divided into watch core type, card type and computer centralized control type.

In multi-cavity mold injection, the lack of hot runners makes it impossible to form. It can be said that the hot runner is the best technology to ensure the balance of the runner. Due to the shear force of the plastic in the runner, no matter how reasonable the geometric balance of the mold, the weight of the molded product is also difficult to match, especially for multi-cavity molds, if the hot runner is not used, it will be formed. The outside of the product will be lighter than the inside.