Plastic machinery is a general term for various types of machinery and devices used in the plastic processing industry. According to the production process of plastic products, plastic machinery can be divided into four categories: plastic mixing machinery, molding machinery, secondary processing machinery, processing auxiliary machinery or devices. Plastic molding machinery is also known as plastic processing machinery.

According to the plastic processing technology, plastic machinery can be divided into three categories: extruder, injection molding machine and blow molding machine. According to the prospectus of Terry Machine, in China, injection molding machine has been in the leading position in the field of plastic molding equipment industry, the output value of plastic machinery accounts for about 40%, injection molding equipment as the largest use of processing machinery in the plastic processing industry, can directly produce a large number of plastic products, or the key equipment of the injection, drawing and blowing industry. Injection molding machine is also the largest output, the highest output value, the most exported plastic machinery. At present, the output of injection molding machines in the United States, Japan, Germany, Italy, Canada and other countries accounts for 60%-85% of the total plastic molding equipment, in contrast, China still has room for improvement.