The automatic winder is one of the most advanced textile machines, often referred to as the "jewel in the crown" of textile machinery. As demand for high-quality textiles continues to grow, the automatic winder has become an essential piece of equipment in textile mills, offering vast market potential. However, due to its complex structure and high manufacturing difficulty, only a few countries—primarily Germany, Italy, and Japan—have been able to develop and mass-produce these machines.
In the early 1990s, Pacific Electromechanical Shanghai Second Textile Machinery Co., Ltd. sought to meet the growing need for seamless yarn production by introducing technology from the German Schlafhorst Group. The company partnered with Schlafhorst to produce the AC238 automatic winder. However, when Schlafhorst launched a new generation of winders in the Chinese market, the collaboration did not yield the expected results.
Through this experience, Pacific Electromechanical realized that true success lay in independent innovation. The company aimed to shift from "Made in China" to "Created in China," breaking free from dependency on foreign technology. Starting in 1999, they began developing the EJP438 automatic winder with full intellectual property rights.
The EJP438 was designed to compete at the global top level. It incorporated cutting-edge technologies such as sensor systems, microelectronics integration, and specialized motor direct drive, enabling modular design of the bobbin unit. After four years of dedicated effort, the first self-designed, fully autonomous automatic winder with independent IP passed production appraisal in September 2003. This marked a major milestone, allowing Pacific Electromechanical to produce automatic winders independently.
From 2003 onward, the company started preparing for commercial mass production. A dedicated winding workshop was established, covering design, technology, procurement, and assembly. Several prototypes were tested in Chinese winding mills and compared against similar equipment from Germany, Italy, and Japan. The EJP438 received strong positive feedback from users. For yarn types like 23.6tex, 14.75tex, and 7.735tex (pure cotton and polyester-cotton blends), the machine achieved a 98% efficiency rate, 100% three-splice success rate, and 95% single-splice success rate. The fixed length average error was just 0.9%, with a coefficient of variation (CV%) below 1%.
The EJP438 gained significant attention at international textile machinery exhibitions, especially at the 2006 Shanghai International Textile Machinery Exhibition, where several customers rushed to purchase prototypes. Today, Pacific Electromechanical Shanghai Second Textile Machinery has the capacity to mass-produce the EJP438. The entire production process—from design to assembly—is carefully managed to ensure consistency, stability, and reliability. A trial production line is already running, with small-volume supply planned for the end of the year.
At the Beijing International Textile Machinery Exhibition in October 2006, Li Peizhong, President of Pacific Electromechanical Group and General Manager of Shanghai Second Textile Machinery, signed contracts for the sale of EJP438 automatic winders. He predicted that at least 100 units would be sold in 2007, marking a key step in the company's journey toward becoming a leading player in the global textile machinery industry.
Three Seats Electric Car,Electric Tricycle For Elderly,Low Speed Car,Electric Vehicles
YUMBOMOBILITY LTD , https://www.yumbomobility.com