In the field of precision transmission for single-screw extruders, the performance of the star wheel directly affects the equipment’s lifespan and operating efficiency. While PEEK material possesses significant advantages such as high-temperature resistance and corrosion resistance, rapid wear and easy deformation under extreme operating conditions remain bottlenecks restricting its application. Junhua Technology, with its innovative CF/PEEK star wheel, has brought a breakthrough solution to the industry.
Junhua CF/PEEK star wheel plates achieve a comprehensive upgrade in material performance through a special material formulation process. The carbon fiber content is as high as 40%-50%, with a small amount of PTFE (polytetrafluoroethylene) added for modification, resulting in significant improvements in mechanical strength, wear resistance, and temperature resistance. Tensile strength is more than 7 times higher than ordinary PEEK, creep resistance is significantly enhanced, and stable meshing accuracy is maintained even under long-term loads. The coefficient of friction remains stable in the range of 0.15-0.25, and the wear rate is only half that of ordinary PEEK. Continuous operating temperature can reach 300℃, and instantaneous temperature resistance is as high as 330℃, perfectly adapting to more demanding working environments.
To address the unique stress distribution in single-screw systems, Junhua’s technical team optimized the star wheel structure through simulation and dynamic load testing. The optimized tooth profile and fiber arrangement effectively dispersed stress, reducing local stress concentration by more than 25%. Under high-pressure alternating loads, the deformation of the CF/PEEK star wheel was reduced by 60% compared to ordinary PEEK, ensuring long-term operational stability. Real-world test data shows that in a compressor application at a certain company, the CF/PEEK star wheel maintained 92% of its initial accuracy after 8000 hours of continuous operation, far exceeding the average lifespan of ordinary PEEK.
As a benchmark enterprise in the domestic specialty engineering plastics field, Junhua Co., Ltd.’s CF/PEEK star wheel has three core advantages. First, it possesses patented CF/PEEK composite material molding technology (patent number: ZL201910443696.8), ensuring uniform distribution of carbon fibers in the matrix and avoiding performance fluctuations. Second, it has established a comprehensive quality control system, monitoring over 20 key parameters in real time from raw material selection and material molding to finished product processing, achieving batch consistency of up to 99.5%. Third, it provides customized service capabilities, offering personalized material modification solutions based on customer equipment parameters.
Facing a market growth rate exceeding 5% annually for single-screw compressors, Junhua Technology leverages its integrated industrial chain advantages—from PEEK resin raw material polymerization and finished parts R&D to production and sales—to provide comprehensive service support to its customers. This includes 200 hours of free simulated operating condition verification, analysis of non-standard tooth profile parameters within 48 hours, and a 12,000-hour operational quality guarantee. These services not only enhance customer satisfaction and trust but also give Junhua Technology a competitive edge in the market.
Junhua’s innovative R&D and application of CF/PEEK star gears not only solves the performance bottleneck problem of traditional PEEK materials under extreme working conditions, but also brings new solutions and development opportunities to the precision transmission field of single-screw machinery. With the continuous growth of market demand and ongoing technological innovation, Junhua will continue to lead the industry forward, providing more customers with high-quality products and services.