Wuxi YUTONG

  Skiving and roller burnishing   process provide high quality  hydraulic cylinders  with final sizing and creates the desired finish pattern on the interior of tubing or cylinder bores. They are used in the manufacturing of hydraulic cylinders. Compared to  honing  process, they are 80-90% saving of machine time which reduces tool costs per meter of tube length and produces super finish surface, with a bore tolerance of H8, thereby reduces the sealing wear making it ideal for pistons. It is capable of holding bore diameter tolerances to 0.025 mm (0.001 in.) The necessary equipment requires a large up-front investment, which makes it suitable for high-volume tubing production. The skiving and roller-burnishing operation, as the name implies, actually involves two processes in one tool. The tube is end clamped in the machine and the tool advances inside. Coolant is pumped through the ID of the tube, flows around the tool and pushes chips out of the front of ...

ST52 steel  come under the DIN 2391 specification, it belongs to a standard structural steel grade..  ST52 grade steel is a readily weldable low carbon manganese steel with good impact resistance.  The steel has excellent weldability and machinability that is similar to mild grades of steel. The steel modules are commonly seen in the construction of bridges, buildings, general engineering, etc. And it works well in extreme and cryogenic temperatures. The steel has good impact resistance and is commonly supplied in the standard normalized condition.  ST52 Steel Chemical Properities Standard Grade C Si Mn P max S max DIN2391 St52 ≤0.22 ≤0.55 ≤1.6 0.025 0.025 Yield Strength 520 Mpa Min. Tensile Strength 600 Mpa Min. Elongation 14% Min. DIN2391 ST52 Steel also has widely application in hydraulic industry,like we usually use ST52 steel to produce  cylinder honed barrel  and   precision cold drawn tubes ,  ST52 honed tube  can withstand extrem...

  Cylinder barrel tube （Honed tube) is the most important part to manufacture and repair hydraulic cylinders. This is because honed tubes are the most critical materials for hydraulic cylinders. Honing is essentially a bore sizing and surface preparation process.    The honing process of cylinder barrel tube is mostly utilized to produce smoothly inside surface finishes, and to ensure accurate dimension tolerances on inside diameters.It will uses abrasive stones and paper to machine the inside diameter of the cold drawn seamless tubes , which “grinds” stock away to eliminate the surface defects from the cold drawing process; and to reach the required tolerances and surface roughness. And usually we should use cutting fluids to offer easy cutting action and also to clear away the cut material from the inside surface. The advantages of honing process for cylinder barrel tube? High processing accuracy of the inside diameters Good surface quality: the surface of honing is cr...

  Cylinder Tube and Rod   usually use carbon steel or stainless steel materials. As a professional cylinder tube and rod manufacturer,   Wuxi YUTONG   Specializing in the production of various types of  hydraulic cylinder tube  and barrel, cylinder rods, honed tubes, skiving roller &burnished tube,  cold drawn precision tube  , chrome plated bar , hollow chrome rod  , induction hardened chrome rod  and other cylinder accessories. We deliver it in production lengths or divide it according to individual requirements Tubes for hydraulic cylinders E355 + SR steel is the most common and most widely used tube material for the production of hydraulic cylinders. Exact, cold-drawn tubes with a rolled inner surface. Surface roughness Ra <0.2 μm. Tolerance H8, weldability guaranteed. On demand, we also supply welded tubes in tolerance H9 with honed inner surface. Rods For Hydraulic Cylinder  Piston rods are coated on the surface wi...