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Metal face oil seal group



There are forging workshop, machining workshop, heat treatment ,R&D center of seal group ,its premises cover 3700 square meters.,in compliance with national standard: JB/T8293.1-1999, JB/T51030-1999 etc. The product outer diameters are from 43mm to 700mm. Main technical parametres:
Working surface hardness: HRC 60-72
Surface finish: less than or equal to RA0.1 Micro-Metre Surface
smoothness: less than or equal to 0.002Roughness of abrasive surface reaching GB1031-68, Ra0.02- 0.032 µm;
wide range of temperature of application from -50℃ to 120℃
Life-span in use: 3000 hours

Recoil spring

The diameter range of recoil spring is 0.2mm-80mm , it is applicable for all construction machines


Equipments show:

hot-rolled machine

compression machine

shot-blasting machine

Hardness Tester


Friction materials

in the production of powder-metallurgy friction material products  such as  Cu-, Fe-, Paper-, Carbon-based, Mo-coated, Semi-metallic and Non-asbestos, more than 1,000 specifications is widely used in the brakes and/or clutches of construction machinery . In quality system-  ISO9001: 2000

Work shop:

CNC Laser cutting machine

MM Friction tester

Metallurgical analysis  instrument


piston ring


With the advanced materials and technologies such as ductile cast iron, steel metal strips, high alloy, chrome-plating, composite ceramics, Mo coating and FTC to the manufacturing  , sophisticated processing, controlling and detecting , In quality system- ISO 9000, QS9000 and ISO/TS16949 ,the annual output of piston rings surpasses 50 million pieces.


Universal joint

the production procedure of forging,machining ,heat treatment, grinding and assembling is all by the automatic equipment.the quality control system strictly is  in compliance with the ISO/TS16949 standard.



Tel:0086-714-6553027 Fax:0086-714-6553257Address:No.21-4,Shunjia Four Seasons City,Yanan Road,Huangshi ,Hubei,China