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Hydraulic Cylinder Tube

Hydraulic Cylinder Tube is a kind of seamless tubes used for construction of hydraulic cylinder barrel. It covered ready to hone tubes and honed or skived&roller burnished tubes.

Hydraulic Cylinder Tubes can be DOM(Drawn over mandrel) and CDS(Cold drawn seamless) and regular sizes and technical achievements are stated below:

Hydraulic cylinder Tube.jpg

Regular steel grades:

Hydraulic cylinder Tube1.jpg

Manufacture Method: Hydraulic Cold Drawing, Cold Rolling, Hot rolled+Deep Hole Boring 

Heat Treating Method/Delivery Condition:

Hydraulic cylinder Tube2.jpg

ID tolerance of honed tubes or skived&roller burnished tubes:

Hydraulic cylinder Tube3.jpg

Bore Roughness: 

Ra0.25um Max for Skived&roller burnished tubes. 

Ra0.25um Max or Ra0.35um Max for Honed tubes. 

Ready to honed tube is a kind of cold drawn tube or hot rolled+deep hole bored tube or even cold drawn+deep hole bored tube with ID suitable for further honing or skiving&roller burnishing,as it's ID tolerance is always negative comparing with finished size of cylinder barrel. ID tolerance can only be given by users,because ID tolerance is different depending on size of cylinder barrel, bore treatment method, and turning requirement. 

Honed tubes or skived&roller burnished tubes are made from ready to honed tubes to get smooth internal surface with roughness like Ra0.25um max or 0.4um max and precise ID with tolerance of H8 or H9. 


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    Changzhou Chengxin Metal Products Co.,Ltd