Datong Hydraulic

 Heat treatment is necessary for H8 honed tubes in order to improve their mechanical properties and make them more suitable for their intended application. The heat treatment process involves heating the steel to a specific temperature and then cooling it down slowly, which can result in changes in its microstructure and properties. In H8 honed tubes, a continuous ans smooth surface can be obtained on the inner diameter thanks to the skiving and burnishing technique. H8 honed tubes that Datong Hydraulic produced are in EN10305 standards in various size and E355+SR（DIN2391 ST52 BK+S）quality standards and all of them are cold drawn and stress released. Material : E355 ST52 Delivery Condition : BK, BK+S, GBK, NBK ID Size  : 20mm – 1500mm Length : max 16m Type : Seamless, Hot Rolled, Cold Rolled, Cold Drawn Straightness : ≤ 0.5/1000 Roughness : 0.2-0.4 um Tolerance EXT : DIN2391, EN10305, GB/T 1619 Tolerance INT : H7,H8,H9 ADVANT...

  Datong Group as a professional manufacturer of cylinder tube and cylinder piston rod ,We stock the largest range of Honed Cylinder Tubes & Unhoned Cylinder Tubes with imperial size and metric size. These steels are derived from a range of leading manufacturers from China like BaoSteel. There are key types we stock: Finished (Honed) Tubes – Honing process / SRB: Skived and Roller Burnished. Semi-finished (Unhoned) Tubes are Made from ST52 Drawn over mandrel & Cold Drawn Seamless Honed Cylinder Tube: Hot Finished E355. Advantages Of Datong Group Cylinder Tube 1, High precision tolerances; Our honed steel tube can meet ID tolerance H7, H8, H9, … etc according to the customer’ requirements, and its I.D dimension. 2, Seamless tube with high pressure resistance; We only use seamless cold drawn tubes to produce honed pipes, which means our honed tubing can work under higher pressure, thus our honed pipes are more reliable for hydraulic cylinder applications. 3, High Smooth...

  Cylinder piston rod is a very important part in hydraulic cylinder working smoothly,hard chrome plating a piece of precision equipment such as a cylinder rod is a painstaking and methodical process. The Hard Chrome Plating Process: 1. Inspection The  cylinder chrome rod  is inspected during the initial evaluation to determine the condition prior to the chroming process. An inspector will make note of any signs of corrosion, pitting, marring, damage, cracking or flaking. The presence of any of these conditions will be taken into account during the re-chroming process. 2. Grinding & Stripping Old material on the  hydraulic cylinder rod  must be removed before new chrome can be applied. This step needs to be completed carefully to preserve the steel beneath the old layer and without affecting the rod diameter. This can be done with two methods – electrolytic stripping and stone grinding. 3. Cleaning and Masking The rod then needs to be prepared to be placed ...