Skiving&roller burnished tube

Skiving and roller burnishing steel tubes made mainly for the hydraulic cylinder industry and other applications where fine-finishing of the internal diameter of a tube is required, Primarily for hydraulics in the contracting, mining and construction industries.

Skiving has some preference over honing , for example, skiving can increase the tube ID surface hardness obviously, providing better tolerance and better surface finishing, achieving Ra0.05--0.3max, also reducing  the ovality of CDS tube .

Comparing with surface of honed tube, the skived and burnished surface provides longer seal life because of its better wear --resistance property . For the advantage of its reliability, wear-resistance and operating reliability, its coming more widely adopted by cylinder manufacturing industry ,Like Caterpillar, Komatsu, SANY, XuGong, Wirpo India, Zoomlion, etc.

Surface roughness:
The surface roughness is  Ra 0.05--0,3μm.
Tolerance:
Tolerances In accordance with DIN 2391/2393. H8/H9.
Delivery condition:
cylinder tube is delivered as standard in cold drawn stress  relieved condition.(BKS&SR).
Tube dimension :
Roller burnished tubes are available in a wide range of sizes from OD 50 – 300 mm and ID 40 – 250 mm , length: 50---9000mm.
steel grade:
St52(S355J2G3), St52.3. Ck45, SAE1026, SAE1020. 27SiMn , 42CrMo4.



Besides, we also provide the ready for assembling cylinder tube, we can have the
tube processed as per your drawing, for example, the tube fully machined and welded
with flange or oil port or other necessary parts as its required.




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