About Us

Wenzhou Dongyi Machinery Manufacturing Co,.Ltd is one of the best High-Tech Industry factory in China. We have more than 30 years of experiences at the design and produce the spare parts of reciprocating compressor. Such as valves, packing assembly, connecting rod assembly, piston assembly, crankshaft, bearing, oil scraper ring assembly, crosshead assembly. We have provided a widely service in Metallurgical Industry, Gas & Chemical Industry, Electric Industry, Mining Industry, Petrochemical Industry , Machinery Industry, CNG Industry…

With the complete control of quality system ,strict procedure for quality, our level of technology facilities and quality has reached the international standard. We has more than 100 sets machines for the production and quality test CNC Machines, Laser Machines, Grinding Ma-chines, Cylindrical Grinder, Internal Grinding Machine, Surface Grinder Machine, R-angle Grinder Machine, Lapping machines, Turning Machines for production; Gas Seal Test-bed, Hardness Testing Instruments, Spectrophotometer, Ultrasonic Detection, Magnetic Particle Testing, CMM, Crank Detection Instrument, Vernier Caliper, Spring Fatigue Testing Instruments, Bridge type three coordinate detection instrument for quality control system.

My factory was founded in 2006 in Wenzhou, As the industry leader to design and produce spare parts for piston compressor and gas separation plants in China.

Our products are widely used for metallurgy, diggings, petrochemical industry, gas separation, chemical industry, textile industry, food-stuff industry, medical industry etc. Provide OEM service.

Quality and Honor

Company has passed ISO9001 certification.

Design for the valve has been patented to improve and extend service life. Successfully invented tungsten oxide & ceramic piston rod Invented superfine abrasion resistant fiber filled PTFE to produce piston ring, support ring, packing sealing ring, in order to fill the gap in the market.