Ningbo Risheng Carbon Brush Co., Ltd is a specialized manufacturer and contract manufacturer of carbon brushes, based in Ningbo, China. Established in 2006, the company employs 11 to 50 people and operates a factory dedicated to producing a wide range of carbon brushes for various applications, including industry, motor-bikes, home appliances, micro-motors, power tools, electrical motors, and cars. Beyond carbon brushes, they also manufacture carbon bodies, carbon holders, mechanism seal rings made of high pure graphite, columniation, collector ring graphite wiper blades, and graphite bearing shafts. The company offers manufacturing services based on customer drawings and samples, operating with a policy focused on quality, reputation, service, and mutual benefit. Their products are exported to markets in Europe, the Middle East, Africa, and Asia.
Ningbo Yunsheng Edrive Technologies Co., Ltd., a subsidiary of the Shanghai-listed Ningbo Yunsheng Co., Ltd. (600366), is a premier manufacturer and high-tech enterprise specializing in the research, development, and production of permanent magnet servo motors and drive systems. Based in Ningbo, China, the company operates from a 20,000 square meter facility with an annual production capacity of 100,000 units. Leveraging the group's expertise in rare earth magnetic materials, the company provides high-performance solutions including AC permanent magnet synchronous motors, direct-drive motors, and IE4 high-efficiency motors.
With a workforce of over 1,000 employees and a dedicated R&D team of more than 100 engineers, Ningbo Yunsheng Edrive Technologies offers comprehensive OEM and ODM services. Their product portfolio serves diverse industrial applications such as rubber and plastic machinery, precision machine tools, port equipment, and renewable energy. Key technical specifications include power ranges from 0.2kW to 800kW and torque capabilities up to 52,158Nm, featuring various cooling methods and position feedback options.
The company maintains rigorous quality standards, holding certifications such as ISO 9001, ISO 14001, IATF 16949, CE, UL, and RoHS. As a globally oriented supplier, it exports approximately 80% to 90% of its output to international markets, serving major clients like Delta, Haitian, and Inovance. By integrating advanced manufacturing facilities with a post-doctorate research station, the company remains at the forefront of Industry 4.0 and mechanical-electronic integration.
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