Injection Molding Machine Development History in China

It has been half a century since the initial injection molding machine was developed. At present, 80% of the engineering plastics industry adopts injection molding.

In recent years, due to the increasing needs of industries such as automobiles, construction, household appliances, food, and medicine, the development and improvement of injection molding technology has been promoted.

About half of the plastic machinery produced in China is injection molding machines. In major producing countries such as the United States and Europe, the output of injection molding machines is increasing year by year, accounting for the largest proportion of plastic machinery.

The first-generation injection molding machine that uses mechanical principles to do injection actions ▼

The first generation injection molding machine

In 1966, Chen Hsong created the first direct-injection molding machine with 10 ounce screws, and it needs to be twisted by hand to adjust the mold. ▼

The first direct injection molding machine with 10 ounce screws

In 1980s, the second-generation domestic injection molding machine was controlled by proximity switch and numerical control adjustment. ▼

The second generation domestic injection molding machine

This machine king of 1990s! It often goes to the origin! ▼

machine king of 1990s

This is an improved version of the fourth generation. I personally felt that its user experience was not good at the time. ▼

Improved version of the fourth generation

The overall development of China’s injection molding machine manufacturing industry

China’s injection molding machine manufacturing industry has developed since the 1960s and has a history of 60 years.

From the oldest human manual injection molding machine, to hydraulic manual, semi-automatic, fully automatic, to oil-electric hybrid, and then to today’s all-electric injection molding machine, China’s injection molding machine industry has achieved rapid development.

Today, different types of injection molding machines, from general injection molding machines to precision injection molding machines and special injection molding machines, are produced in China and occupy a pivotal position in the global injection manufacturing industry.

After the 1980s, China’s injection molding machine industry has developed rapidly, with an annual growth rate of more than 20%, and gradually formed processing bases mainly in Ningbo, Zhejiang, Shenzhen, and Shunde, Guangdong.

At present, China’s annual production of injection molding machines ranks first in the world. Among them, the annual output of injection molding machines in Ningbo, China is about one-third of the world’s annual output, and it is the largest injection molding machine production base in the world.

Application of China's injection molding machines

In terms of application, China’s injection molding machines are mainly general-purpose, and the production of general plastic products such as toys, stationery, daily necessities, furniture, and decoration materials occupies the largest market share.

Secondly, injection molding machines are mainly used in the production of large household appliances, such as refrigerators, color TVs, washing machines, air conditioners, computer casings, etc. This application market accounts for more than 40% of China’s total engineering plastics, and domestic injection molding machines dominate this market higher share.

The development history of all-electric injection molding machine

In 1966, Germany’s Battenfeld (Battenfeld) launched an injection molding machine fed by an electric motor, which opened the forefront of applying electrical structures to important units of injection molding machines.

But until 1994, the Japanese FANUC company took advantage of its original electric servo control technology and cooperated with the American MILACRON technology to launch a commercialized all-electric injection molding machine. Since then, the all-electric injection molding machine has entered the stage of contention.

At the 2001 Dusseldorf Exhibition in Germany, many European manufacturers also exhibited all-electric injection machines:

In fact, since the launch of the commercialized electric injection machine, its development has always been dominated by the Japanese market and the North American market. Many European manufacturers are not active in development. However, with the Japanese manufacturers and the market fueling the flames, European manufacturers cannot stay out of the market. Therefore, a new generation of models were launched in 2001, such as Battenfeld, NETSTAL, ENGEL, MIR, OIMA, NEGRI BOSSI and so on. Judging from the development of several major global manufacturers in Europe, America and Japan, it is an inevitable trend to include all-electric injection molding machines in their product lines.

However, it is worth noting that in the past one or two years, some European and American manufacturers have launched “hybrid injection machines” or “electrical injection machines” instead of “all-electric” models. For example, Canada’s HUSKY, Germany’s ARBURG, DEMAG, KRAUSS-MAFFEI, Italy’s SANDRETTO, Japan’s JSW, SODICK, TOSHIBA, and MEIKI, and Taiwan’s Qunji have also launched oil-electric hybrid or partially electrified models. Both the all-electric type and the oil-electric hybrid type belong to the electrification category of injection molding machines.

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