The hot runner fitting is a part of the mold used to control the flow of plastic so that it is filled, held and formed in the mold cavity.

Common hot runner accessories include nozzles, hot nozzles, thermostats, heaters, sensors, controllers, etc.

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These parts usually work under high temperature and pressure, need to withstand the friction, wear and corrosion of plastic, and need to control precise temperature and pressure to ensure the quality and accuracy of the product.
According to the different materials used, hot runner accessories can be divided into metal and plastic two types.
Metal accessories are generally made of high temperature resistant alloy materials, such as stainless steel, titanium alloy, etc., to ensure their high strength, corrosion resistance and high temperature wear resistance; Plastic accessories are made of polymer materials, such as polyester, polycarbonate, etc., to withstand high temperature and high pressure working environments. In addition, the design and manufacturing of hot runner accessories need to go through precise calculation and control to ensure the accuracy and overall performance of the mold, in the manufacturing process, the need to use advanced processing equipment and technology, such as CNC machine tools, EDM, laser processing, etc., to achieve high-precision and high-efficiency manufacturing and assembly. Therefore, for mold manufacturing enterprises, choosing the right hot runner accessories and applying them to production reasonably is the key to improving production efficiency and product quality.