When plastic pepper balls are processed by injection molding, there will be a large number of nozzles, and because of the mold design, the plastic material flows slowly in the mold, which often leads to the phenomenon of lack of glue and glue, and too many nozzles also push up the manufacturing cost of plastic pepper balls. Using hot runner mold technology to produce plastic pepper balls can effectively overcome the above shortcomings and save manufacturing costs.

The hot runner technology of PP plastic pepper ball is to install a heating device in the mold, so that the temperature of the mold runner is the same as that of the injection molding machine, which can effectively improve the fluidity of plastic materials, improve the phenomenon of lack of glue caused by insufficient mold temperature, and also overcome the phenomenon of stress cracking of plastic pepper ball. Because of the high runner temperature, it is not necessary to design a special runner, so it also saves materials, because there is no water outlet on the product. It can effectively reduce the manufacturing cost of plastic pepper balls, but the hot runner mold cost of plastic balls is high, so plastic pepper balls should use hot runner technology, and it must be an order with huge production capacity for plastic pepper balls to be suitable for hot runner technology.