Hot runner applications

Details:

Hot Runner Systems is a system of heated components used in injection moulds to inject molten plastic particles into the cavities of the mould. A hot runner mould is a new construction in which the sprue and runner of a conventional mould or three-plate mould are heated so that the sprue and runner do not need to be removed during each moulding process.

The hot runner system generally consists of several parts such as hot nozzles, manifolds, temperature control boxes and accessories. There are two types of hot nozzles: open type hot nozzles and needle valve type hot nozzles. Because the hot nozzle form directly determines the hot runner system selection and mould manufacturing, and therefore often corresponding to the hot runner system is divided into open hot runner system and needle valve hot runner system. Manifolds are used when there are multiple cavities in a mould, or when there is multi-point feeding or single-point feeding but the material level is offset. The material is usually P20 or H13. manifolds are generally divided into two categories: standard and non-standard, and their structural form is mainly determined by the distribution of cavities in the mould, the arrangement of nozzles and the location of gates. Temperature control box includes host, cable, connector and wiring male and female sockets. Hot runner accessories usually include: heaters and thermocouples, runner seals, connectors and junction boxes.