In recent years, the product category of the plastic machinery industry in China is developing with each passing day. Among them, there are many manufacturers that produce injection molding machines. According to incomplete statistics, there are more than 60 manufacturers. Judging from the processed products, there are monochrome, two-color, general and precision plastic products. The main manufacturers of these products have their own series, each with its own characteristics.

In the product composition of domestic plastic machinery, injection molding machines account for a major share, followed by extruders and blow molding machines. In 2000, the output of domestic injection molding machines was 29,311 sets, the extruders were 7,784 sets, the blow molding machines were 1,425 sets, and the number of injection molding machines and extruders was close to 4:1. The output value of the three major categories of products was 4.025 billion yuan, 2.533 billion yuan and 433 million yuan respectively, which accounted for 47.19%, 29.70% and 5.19% of the total output value of the industry. This indicates that the structure of domestic plastic machinery products is tending to be balanced and reasonable.

From the perspective of current product export structure, injection molding machines accounted for a major share of 60.4%, extrusion units accounted for 6.8%, hollow molding machines accounted for 11.7%, and other plastic machinery accounted for 21.1%. In recent years, large-scale and super-large injection molding machines have developed rapidly in the domestic injection molding machine market. At present, the domestic plastics machinery industry can provide batch injection molding machines with a clamping force below 25000 KN and four-cylinder straight-lock injection molding machines to the domestic market.

According to the production process of plastic products, plastic machinery can be divided into four categories: plastic compounding machinery, plastic molding machinery, plastic secondary processing machinery and plastic processing auxiliary machinery or devices. Plastic compounding machines are used for the manufacture of various forms of plastic compounds, including kneaders, mills (open mills and mixers), pelletizers, screening machines, crushers and mills. Plastic molding machinery, also known as plastic primary processing machinery, is used to form plastic semi-finished products or products, including compression molding machines, injection molding machines, extrusion molding machines, blow molding machines, calendaring machines, rotomoulding machines, and foaming machines.

Plastic secondary processing machines are used for reprocessing and post-processing of plastic semi-finished products or products, including thermoforming machines, welding machines, heat sealing machines, stamping machines, vacuum evaporation machines, flocking machines, printing machines, etc. Metal processing machines are also commonly used for secondary plastic processing. The plastic processing auxiliary machinery or device is used to rationalize the plastic processing process, including automatic metering feeding device, automatic scrap recycling device, automatic injection product injection device, rapid injection mold replacement device, injection mold cooling machine, automatic thickness measuring device and raw materials Transportation and storage equipment. Such auxiliary machinery or devices have become an indispensable part of the automation of modern plastics processing.

In recent years, the injection molding machine manufacturers in industrialized countries all over the world have continuously improved the functions, quality, supporting facilities of auxiliary equipment, and automation level of ordinary injection molding machines. At the same time, we will vigorously develop and develop large injection molding machines, special injection molding machines, reaction injection molding machines, and precision injection molding machines to meet the needs of producing plastic alloys, magnetic plastics, and plastic products with inserts.