Nearly 60 years of precision machining · Parts manufacturing center of China Silian Group
Formerly Southwest Instrument Parts Factory relocated from Shanghai in 1966
01A mixed-ownership company with employee shareholders
02500+ production machines and 110+ inspection devices, QES/GJB certified
03In-house aluminum die-casting lines integrated with downstream machining, covering instrument housings and auto parts.
View DetailsRobotic grinding and polishing lines delivering consistent surface quality and high efficiency for castings.
View DetailsOver 500 production machines covering turning, milling, grinding and drilling for volume precision machining.
View DetailsCenterless and jig grinding equipment for high-precision shaft and hole machining.
View DetailsCMM, roughness/profile testers and vision measuring machines form a complete metrology system.
View DetailsXRF spectrometers, Brinell/Vickers/Rockwell hardness testers, air-tightness testers covering material and performance testing.
View DetailsAll-in-one sensor and transmitter for non-contact level measurement of liquids and solids; easy installation for water treatment, chemical and power industries.
Learn more +Explosion-proof version for level measurement in flammable and explosive environments such as petroleum and chemical plants.
Learn more +Separated sensor and display unit for harsh sites with high temperature, humidity or corrosion; the display can be installed in the control room.
Learn more +26GHz high-frequency radar with narrow beam and high accuracy for continuous level measurement under demanding conditions.
Learn more +Full PTFE anti-corrosion antenna design for level measurement of strong acids and alkalis.
Learn more +Standard radar level meter with high cost performance for conventional applications such as water treatment, power and grain storage.
Learn more +Chongqing Chuanyi Precision Machinery Co., Ltd. is a mixed-ownership enterprise mainly invested by China Silian Instrument & Meter Group and key employees. Formerly Southwest Instrument Parts Factory relocated from Shanghai in 1966, it was restructured on April 22, 2004.
Located in Beibei District, Chongqing, covering 20,000+ m² with 380 employees, 500+ production machines and 110+ inspection devices, we manufacture precision machinery parts and industrial automation instruments as the parts manufacturing center of China Silian Group.
Learn more +On June 10, nearly 140 teachers and students from the Department of Measurement & Control Technology and Instruments visited our Science City and Xiaomotan campuses for field study and exchange.
2026-06-22Six decades of dedication, marching forward together. The company held celebration activities for the 60th anniversary of its founding.
2026-05-07From July 30 to August 1, 2025, the audit team conducted an on-site review of our GJB quality management system, and the company successfully passed the certification.
2025-09-08On April 21, leaders of China National Machinery Industry Corporation's Chongqing Materials Research Institute visited our company for exchanges on cooperation.
2025-04-24On December 27, leaders of Yufu Group and Silian Group inspected work safety at our company and affirmed our safety management.
2024-12-31
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