The Shanghai Textile Machinery General Factory of the Pacific Electromechanical Group has been dedicated to the research and development of domestic combing machines since the 1960s. Over decades, the factory has continuously evolved its technology, from the early A201 and A202 models to the more advanced FA251, FA252, CJ40 series, and finally the sixth-generation CJ60 model. This journey marks a significant transformation in the mechanical systems used to meet process requirements—from basic mechanical structures to integrated mechatronic, digital, and intelligent solutions.
In terms of resource integration, the factory has established cross-functional project teams that include experts from market analysis, design, process engineering, manufacturing, and quality control. By appointing leading scientists and engineers, implementing incentive programs, and collaborating closely with spinning specialists, the factory enhances both learning and research capabilities. They actively engage with cotton spinning enterprises to gather real-world insights and apply them to their design processes. This approach not only strengthens their overall technical capability but also accelerates product development and elevates the technological value of their machines.
On the technology front, the factory has adopted an independent innovation strategy combining "technology accumulation" with "technology integration." It incorporates the latest research findings into combing technology, integrates modern mechanical design principles, and adopts mature technologies such as frequency conversion, servo control, industrial buses, and Ethernet. These innovations have led to the creation of highly competitive products with unique features. In addition, the factory places great emphasis on protecting its intellectual property by strictly following domestic and international patent application and approval procedures.
The CJ60 cotton combing machine is the sixth-generation model developed by the Pacific Electromechanical Shanghai Textile Machinery Factory, representing a successful implementation of the company's "resource integration and technology integration" strategy. It embodies the core of the factory’s innovative spirit and serves as a key example of its technological progress.
Key technical specifications of the CJ60 include a maximum speed of 450 clamps per minute, a sliver weight range of 60g/m to 80g/m, a drop rate between 8% and 25%, a feed roller output length of 3.84mm to 5.23mm, a drafting ratio of 8 to 24 times, and an output sliver of 3 to 6 dtex. The machine can produce up to 65 kg/h, making it one of the most efficient models in its class.
The CJ60 has undergone extensive optimization in motion coordination, timing, and positioning during the combing process. The nipper movement time and opening amount can be adjusted for different combing conditions, while the lightweight caliper assembly reduces impact forces and supports high-speed operation. The precise conjugate cam mechanism ensures smooth and accurate separation of the cotton mesh. Additionally, the combing angle offers two options—90° and 112°—to suit various operational needs.
The suction system has also seen new advancements, with controlled airflow that minimizes interference with the cotton mesh and ensures better quality at high speeds. The optimized drafting transmission structure allows for a wider drafting range, and the reduction in the main drafting roller diameter improves stability and strip quality. The machine's rigid frame provides excellent static and dynamic precision, along with a low center of gravity, enabling reliable performance at high speeds.
The communication system allows seamless data exchange between the PLC, touch screen, and variable frequency controller. Parameters can be directly set via the touch screen, enabling smooth and flexible speed control. The user interface is intuitive and easy to operate, and the machine can be connected to a central computer for centralized management. With a high cost-performance ratio and strong reliability, the CJ60 is equipped with nine patented technologies and meets the highest expectations of the market. Its performance is comparable to the best international standards.
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