Which is better for hollow molding? The extrusion blow molding machine is to inflate and deform the hollow plastic parison in a high elastic or plastic state with the help of compressed air, and then cool and finalize the shape to obtain the processing of plastic products, which is called blow molding. According to the types of blow molded products, this processing method can be divided into hollow blow molding and film blow molding.

For high-quality hollow molding manufacturers, during hollow blow molding, it is necessary to place the hollow plastic parison in high elastic state or plastic state in the closed blow molding mold cavity, and then introduce compressed air into it to force its surface area to swell (inflate) and close to the surface wall of the mold cavity. After cooling and shaping, hollow plastic products with certain shape and size can be obtained. Suitable for all kinds of bottle and cylindrical plastic containers.

Injection system is one of the main components of injection molding machine. There are three main forms: plunger type, screw type and screw pre plastic plunger injection type. At present, screw type is widely used. Its function is that in a cycle of the injection molding machine, a certain amount of plastic can be heated and plasticized within a specified time, and the molten plastic can be injected into the mold cavity through the screw under a certain pressure and speed. After the injection, the molten material injected into the mold cavity is kept in shape.