Cylinder Head-Forged and CNC Machining

2016-08-26 14:39:00

SAE port is very crital to hydraulic cylinder, normally the tolerance is less than 0.4mm while the roughness of the sealing cone is less than Ra0.8. JB has unique technique to machine the SAE oil port and gurantee the concentricity of the oil port and thread or internal holes at the same time ensure the tolerance of the external diameter and the finish of the sealing groove. 



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