Plastic pepper ball is a general term for plastic hollow pepper ball and foamed plastic pepper ball. Plastic pepper ball will choose plastic hollow pepper ball or foamed plastic pepper ball according to different needs. The manufacturing cost of foamed plastic pepper ball is relatively low, but the density of plastic foamed pepper ball is extremely unstable, so there are fewer and fewer customers using foamed plastic pepper ball now.

The plastic foaming pepper ball adopts the injection molding process, in which a certain proportion of foaming agent is added into the plastic raw material, and then injection molding processing is carried out. Because the whole foaming process happens randomly, the number and size of bubbles in the foamed plastic pepper ball are uncontrollable, and the density is unstable, so there are fewer and fewer customers using the foamed plastic pepper ball now.

There are two manufacturing processes of plastic hollow pepper balls, one is blow molding process, which is relatively simple and low in cost, and the other is manufacturing by welding two plastic hollow hemispheres, which has relatively high manufacturing cost, but high strength and good quality. Many kinds of plastic materials can produce plastic hollow pepper balls, so this process is more and more applicable.