What are the classification of hot runner?

　　Fully hot runner and Semi hot runner。The design of adiabatic channel is complex, but the effect is good and the maintenance cost is very low. The structure of micro semi hot runner is simple, stable and easy to use, and the failure rate is low. Because of its simple structure, the maintenance cost is low, which has a greater guarantee for the stability of production.

Hot runner classification: open type (for micro semi hot runner), needle valve type (for adiabatic runner).

Open style

The open structure is simple, which is suitable for micro semi hot runner, but not for adiabatic runner. The adiabatic runner has high material limitations, and directly contacts the product surface, which is easy to cause wire drawing and leakage, and the surface quality is poor. The micro semi hot runner does not contact the product, but contacts the micro runner, so the open hot nozzle can be used, which is widely used in foreign high-precision molds.

Needle valve type

The needle valve hot runner saves materials, the surface of plastic parts is beautiful, and the internal quality is compact and the strength is high. There are two types of needle valve hot runner in the world (according to the injection principle): cylinder type and spring type. The cylinder dependent controller and the timing controller control the closing of the cylinder driven needle valve. The structure is complex, but the design is simple. Among them, Japan did not enter the Chinese market in the 21st century. Because of its structural characteristics, the cylinder type die has high precision, and the debugging and maintenance are more complex. A lot of their costs are in debugging and maintenance, and customers can't maintain them by themselves. The difference between spring type and cylinder type is that they can't control the time sequence and can't solve the problem of weld mark. Based on the successful experience of thousands of sets of hot runner system, we have successfully developed: small diameter wear-resistant nozzle; spring needle valve and internal heating nozzle. Plastic hot runner developed a kind of inlaid heater. The heater is directly inlaid into the copper sleeve. Because the copper has good thermal conductivity, the inlaid copper heater is covered on the hot nozzle, which greatly reduces the maintenance cost of hot runner hot nozzle

In fact, the hot runner mold reduces a lot of design requirements and provides great convenience for designers to develop more mold structures. Su Mei not only inherits the advanced technology of Canadian hot runner, but also integrates the related injection molding, electrothermal and precision machining technology. The company makes full use of human resources, introduces advanced on-site production and customer service system, and creates a set of management system to make customers fully satisfied.