Dalian Rubber & Plastics Machinery Co., Ltd. recently announced that its newly developed large-scale domestic plastic granulator will enter trial production at its new facility in May this year. However, despite these advancements, high-end molding machines remain scarce in the domestic market, with imported equipment still dominating the sector.
The trend toward large-scale refinement is becoming increasingly important. According to reports, China has attempted to collaborate with foreign partners to produce plastic granulators with an annual output of 70,000 tons, but none have succeeded so far. Today’s advanced plastic pelletizing systems require a capacity of over 50 tons per hour, translating to an annual output of 300,000 to 400,000 tons. This level of performance demands highly sophisticated design and manufacturing capabilities. Currently, only a few international companies—such as Japan’s Kobe Steel, Japan Steel, and Farrell—are capable of designing, manufacturing, and commissioning such large-scale units.
Compared to their global counterparts, China’s plastic granulator technology still lags behind. While the country has made progress in absorbing and applying large-scale granulator technology, it has completed the design for polypropylene mixing extruder units with annual outputs of 70,000 to 100,000 tons, yet these designs have not been widely implemented. The overall design and manufacturing standards of China’s extrusion granulators are still significantly behind those of foreign manufacturers, particularly for large and medium-sized polyolefin systems, which continue to rely heavily on imports.
In recent years, China’s plastics machinery industry has experienced rapid and sustained growth. This is evident in both import and export activities, reflecting not only a surge in production but also significant improvements in quality and technological capability.
China is currently a major player in the global plastics machinery manufacturing landscape, both as a producer and a consumer. However, it is not yet a true powerhouse in this field. There are approximately 400 plastic machinery manufacturers in the country, mostly concentrated in economically developed regions like the Pearl River Delta and the Yangtze River Delta. In contrast, areas such as Tibet, Xinjiang, Qinghai, Ningxia, and Hainan still lack any local manufacturers.
Despite the growing market demand, the total amount of imported plastic machinery remains high, accounting for about 50% of the total market. Overcoming technological bottlenecks will take time. Large-scale granulation units used in ethylene projects, precision injection molding machines for electronics, and large injection molding machines for automotive applications are still largely imported. This is partly due to the relatively weak foundation of China’s press manufacturing industry.
On one hand, there is a clear gap between China’s plastic machinery and that of advanced countries, especially in areas like precision injection molding and large-scale granulation, where domestic production is still lacking. On the other hand, many domestically produced machines are of comparable quality and performance, and can meet market needs without requiring imports. To address this, the industry must continue to enhance innovation and improve management practices.
Chinese manufacturers are actively working to align with international standards and compete globally. In terms of development speed and key economic indicators, the plastics machinery industry ranks among the top 190 sectors in the broader machinery industry. China’s annual production capacity for plastic machinery is around 200,000 sets, ranking first worldwide. In Ningbo alone, more than 100 injection molding machine manufacturers operate, including the Haitian Group, whose products are exported to over 30 countries, including Europe and the U.S. The company generates over $200 million in revenue annually.
According to statistics, China’s plastics industry is still in a phase of high growth. It is estimated that by 2010, the output of plastic machinery in China will reach 500,000 units.
Overall, China’s general plastic machinery products already face overcapacity. Companies undergoing technological upgrades are investing in more efficient and high-precision equipment to boost product innovation.
As the saying goes, "No diamond drill, no way to live in porcelain." For the plastics machinery industry to truly break through, there is still a long way to go.
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