The first injection molding machine was made by H. Bouchholtz in 192 1 year. That is a piston machine. Similar to the screw injection machine at that time. Of course, this machine is driven by human power. The first batch of injection molding machines were manufactured by eckert and Ziller in 1926. Although its mold locking is still manual, the injection process is completed by air pressure. The machine adopts horizontal structure, and its principle is still used today.
China's plastic machinery began in the late 1950s, and 1958, the first injection molding machine in China was born in Shanghai, which opened a new page for China to manufacture its own plastic machinery. However, the injection molding machines produced at that time had a low technical content, and they could only use daily necessities with low technical requirements, such as plastic boxes, plastic buckets and plastic pots. With the development of China's petrochemical industry, China's plastic machinery industry has gradually formed an independent industrial sector and begun to take shape, which is an important part of the national machinery industry. Especially since the reform and opening up, China's plastic machinery industry has made great progress.