According to the plastic products production process, plastic machinery can be divided into plastic blending machinery, plastic molding machinery, plastic two times processing machinery and plastic processing auxiliary machinery or equipment, such as four major categories. Plastic blending machinery is used in the manufacture of various forms of plastic blending materials, including kneading machines, refining machines (mixer and mixer), granulator, screening machines, crushers and grinders. Plastic molding machinery is also known as plastic processing machinery, used in plastic products or products of the molding, including plastic presses, injection molding machine, extrusion machine, blow molding machine, calender, rolling machine, foaming machine. Plastic two times processing machinery for plastic products or products of reprocessing and post-processing, including thermoforming machine, welding machine, welder, hot stamping machine, vacuum evaporation machine, flocking machine, printing presses and so on. Metal-processing machine tools are also used in plastic processing two times. Plastic processing auxiliary machinery or equipment to achieve the rationalization of the plastic processing process, including automatic metering feeding device, scrap automatic recovery device, injection molding products automatic removal device, injection mold rapid replacement device, injection mold cooling machine, automatic thickness measurement devices and raw material transportation and storage equipment. This kind of auxiliary machinery or equipment, has become the modernized plastic processing process automation indispensable part.
The degree of perfection of plastic machinery directly affects the quality, yield and cost of plastic products or products, so it must be able to adapt to the changes of temperature and stress in the blending and processing of plastics, as well as the changes in the properties of molten materials, and adapt to special conditions such as chemical corrosion and mechanical wear. Specialization of plastic grade, the development of engineering plastics, the emergence of composite materials, the development of large plastic product structure, lightweight and thin-wall technology require plastic machinery to achieve: the production of products for the purpose of complete sets; high speed, labor-saving, automation to improve product production efficiency; , low energy consumption, small footprint, easy and safe operation and maintenance.