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Chongqing Chuanyi Precision Machinery Co., Ltd. is a mixed-ownership enterprise mainly invested by China Silian Instrument & Meter Group Co., Ltd. together with key employees. Its predecessor, Southwest Instrument Parts Factory, was a third-front enterprise relocated from Shanghai to Chongqing in 1966, later renamed Sichuan Instrument Factory No.22 and Chongqing Chuanyi Factory No.22. On April 22, 2004, it was restructured into Chongqing Chuanyi Precision Machinery Co., Ltd.
The company is located at the foot of Jinyun Mountain by the Jialing River in Beibei District, Chongqing, with production sites in Chengjiang Town and Xiema Science City covering more than 20,000 square meters. With nearly 60 years of parts machining history, the company has 380 employees, over 500 production machines, more than 80 auxiliary facilities and 110 inspection devices. We are dedicated to manufacturing precision machinery parts (instrument elements, precision optoelectronic parts, auto parts, compass parts, precision die-casting parts, etc.) and to the design, manufacture and sale of industrial automation instruments (temperature, level and engine instruments).
Our machining lines are built around optical-communication high-end component machining, Honeywell / Yokogawa-Chuanyi transmitter machining, and aluminum die-casting with downstream machining. Relying on excellent workmanship and capacity, we have become the instrument parts manufacturing center of China Silian Group and a key supply base of Chongqing Chuanyi Automation Co., Ltd.
Corporate Vision
To build a modern enterprise with stable and reliable product quality and scientific on-site management, becoming a first-class domestic manufacturing base for precision parts and instrument components.
Management Policy
Precision machining, careful management, focused innovation and constant improvement; accident prevention, green safety, continuous improvement and scientific development.
Development History
- 1966 — Southwest Instrument Parts Factory relocated from Shanghai to Chongqing
- 2004 — Restructured into Chongqing Chuanyi Precision Machinery Co., Ltd.; certified as a high-tech enterprise
- 2022 — Recognized as an SRDI enterprise; QES certified
- 2025 — Passed GJB quality management system certification
Core Values
Qualifications & Honors
Certified under QES and GJB systems; recognized as High-tech Enterprise, SRDI Enterprise and National Work Safety Standardization Level II. Our optical adapter precision assemblies were certified as National Key New Products and High-tech Products. Awarded Best Supplier by Accelink and Excellent Supplier by Chongqing Cummins Engine, Yokogawa-Chuanyi and Chuanyi Control Valve.