Chongqing Zhizhan Gear Transmission Co., Ltd. (hereinafter referred to as "Zhizhan Gear"), founded in 2008, is located in Degan Industrial Park, Jiangjin District, Chongqing. In 2019, it acquired Chongqing Yongjin Heavy Machinery Complete Equipment Co., Ltd. As a national-level "Little Giant" enterprise specializing in new and unique technologies, it is a high-tech enterprise integrating R&D, production, sales, and service, with gear transmission equipment as its core business.

The company leads domestically in designing and manufacturing high-speed, heavy-duty, non-standard transmission devices, and spiral bevel gears. Its current designed maximum power transmission reaches 50,000 kW (50 MW), the highest gear pitch line velocity is 180 m/s, and the maximum speed is 100,000 r/min.It holds 11 invention patents, 82 utility model patents, and 16 design patents. It has been recognized as a National High-Tech Enterprise, a Chongqing Innovative Pilot Enterprise, a Science and Technology-Based Enterprise, and the Chongqing Engineering Technology Research Center for High-Speed Heavy-Duty Gear Transmission. It is also a national key "Little Giant" enterprise.

Its products are widely used in aerospace, aviation, shipbuilding, cement, building materials, steel, thermal power, mining, petroleum, chemical industry, coal, metallurgy, wind power, rail transportation, construction machinery, water conservancy hubs, various test benches, sewage treatment, waste incineration power generation, gas turbine power generation, compressors, and other fields.

It possesses internationally advanced processing and testing equipment, including German DMG five-axis machining centers, Italian PAMA boring and milling machining centers, German NILES CNC form grinding machines, and German Schenck dynamic balancing machines. It can produce integral gear parts with a diameter of up to 4 meters, unlimited modulus, accuracy up to DIN-3, tooth surface hardness of HRC58-62, as well as herringbone gears without relief grooves and high-precision gearboxes. It also masters the world-leading single-match processing technology for spiral bevel gears.

It has been awarded the Second Prize of the Higher Education Institutions Scientific Research Outstanding Achievement Award, the Second Prize of Sichuan Provincial Science and Technology Progress Award, and the Third Prize of the Aeronautical Society Scientific and Technological Progress Award. It is recognized as a "Digital Workshop," a "Green Manufacturing System Demonstration Enterprise," and the Chongqing Engineering Technology Research Center for High-Speed Heavy-Duty Gear Transmission.

The company has established a comprehensive quality management system and passed ISO9001 Quality Management System Certification, ISO14001 Environmental Management System Certification, and ISO45001 Occupational Health and Safety Management System Certification.

Looking ahead, the company will stay true to its original mission and forge ahead. Adhering to the quality philosophy of "prevention first, process control, continuous improvement, and pursuit of excellence," it upholds the core value of "creating value for customers." It aims to build itself into a "small but excellent" transmission technology enterprise and uphold the core values of creating value for customers.