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...

  ST52 Cylinder Barrel  is well known as hydraulic cylinder tube in industries.  Honed Tubes , Skived & Roller Burnished Tubes are the most important material of manufacturing  hydraulic cylinders . Delivery Condition Of ST52 Cylinder Barrel Normal speaking , Annealing and normalizing of steel are two common heat treatment processes.The purpose of annealing and normalizing is to eliminate certain defects caused by hot processing of steel, or to prepare for the subsequent cutting and final heat treatment. As a professional cylinder barrel factory,  Datong Hydraulic  can do production with Delivery Condition: BK, BK+S, GBK, NBK. To keep the cylinder tube good working performance. Cold Finished(BK):  Honed Cylinder Tubes  do not undergo heat treatment following the final cold forming and thus, have a rather high resistance to deformation. Cold finished and stress-relieved (BK+S): Heat treatment is applied following the last cold forming process. ...

  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...

  An important factor that when manufacturing   hydraulic cylinder tube and rod ,the quality of steel materials.   Datong Hydraulic   work with the best materials for durable, high performance hydraulic cylinder tube and rod. Ideal properties for hydraulic cylinder materials include resistance to wear and corrosion, light weight, machinability, and low cost. Here are some of the most commonly used materials: STAINLESS STEEL TYPE 304 Type 304 Stainless is one of the most widely used materials in  hydraulic cylinder barrel  and piston rod. Type 304 Steel is not only resistant to corrosion but is also easily available and environmentally friendly. Stainless steel 304 is durable in acidic environments and does not wear easily. TITANIUM ALLOY GRADE  When used to manufacture hydraulic cylinders, titanium grade provides corrosion resistance and impeccable strength. It is also easy to machine or form, and is relatively lightweight for its strength - one of the...

  HYDRAULIC HONED PRECISION TUBES Hydraulic honed tubes  are seamless, hot rolled and honed. They can be used for manufacturing any hydraulic cylinder. Honing is finishing method whose goal is to ensure perfect surface grade, in our case final treatment of the inner diameter of the tube. Advantage of this classic procedure is high geometrical accuracy of the shape with minimal conicity and waviness of the surface. However, after the process, they will be a large number of spiral grooves from the grinding tool. These result in greater wear and lesser lifespan of the seals, compared to the roller burnished tubes. Final surface will have roughness Ra 0,4 μm. Hydraulic Honed Tubes are made of ST52.0 (E355) material. ST52 Hydraulic Cylinder Tubes are preferred in various sizes and thickness by our clients all across the globe. SKIVED AND ROLLER BURNISHED PRECISION TUBES These tubes are cold drawn, skived and roller burnished. They can be used for manufacturing any hydraulic cylinde...

Bore is the inner diameter of the  hydraulic cylinder . The size of the bore can calculate by checking how much force is generated. Bigger the bore size can generated large force and the small one generate less force. The Bore of the Hydraulic cylinder decides the all-out intensity of the cylinder. The bigger the drag, the more it can lift or push. On the off chance that you see or hear us discussing a "4-inch" cylinder, we are continually discussing the drag of the cylinder. The outside distance across (OD) is normally around 1/2″ bigger than the drag, yet it relies upon the divider thickness, so on the off chance that you quantified your cylinder all things considered and it quantifies 4-1/2″, you can be almost certain its a 4″ Bore cylinder. Datong Hydraulic  is a professional manufacturer in producing and designing hydraulic cylinder ,besides, we also produce  honed tubes  and  chrome plated bars , if you have any inquiry about  hydraulic cylinder tube ...

DESIGN The  hydraulic cylinders  first designed by a team of hydraulic cylinder engineers, taking into account the use of the hydraulic cylinder and the environment that it will be in. This dictates materials, coatings, seals and other specialist parts. Hydraulic systems are designed in compliance with any external legislation that relates to the industry that it is being designed for. The offshore industry in particular has a number of requirements, which Apex Hydraulics can design in compliance with.   MACHINE SHOP Once the design has been finished, the machine shop engineers start producing the cylinder. Cylinder rods and other parts are bored to minutely accurate measurements using highly specialized machinery. Cylinder rods are chromed or coated with specialist coatings company such as  Datong Group .   FITTING DEPARTMENT The fitting department puts all the components together (rod, pistons, tubes and seals). Purchasing from a wide variety of high-quality m...

hydraulic Honed tube  is a kind of tube that the inner hole of cold drawing tube is machined by honing head with the high speed grinding process, so that the inner hole achieves the tolerance dimension and surface roughness requirements required by us. It is widely used in  hydraulic cylinder  ,engineering machinery, metallurgical machinery, mining machinery, road construction machinery, textile machinery and other industries. Description Name: DIN 2391 Seamless cold drawn tubes, DIN 2391 Seamless precision steel tubes, ST52 Precision tubes, Seamless precision tubes, DIN 2391 ST52 Seamless precision steel tubes, ST 52 Honed tubes, ST52 cylinder tubes Size: 30mm-1000mm W.T.: 3mm-50mm Shape: Round Production type: Cold drawn Length: as customer’s actual request max length is 13m Grade: St52 Other Available Products We Can Supply St52 BK+S DIN2391 Honed Tube H8 DIN2391 Honed Cylinder Tube Skived and Roller Burnished Tube Chrome Plated Bar Chrome Plated Hollow Bar/Chrome Plat...

How to choose, process, and install  hydraulic cylinder tubes   properly, in order to make the hydraulic line system work more energy-efficient, reliable, and have a longer life? This has become an important issue for hydraulic technologies. As one of the leading China hydraulic tube manufacturer and supplier,  Datong Hydraulic  specializes in manufacturing hydraulic cylinder tubes and carbon steel honed tube for many years, and has many years experience of hydraulic tube related technology and research. This article will briefly describe the hydraulic pipe selection, processing, installation, etc., with hope to help the customers in the hydraulic system industry who are in need. CHOOSE THE RIGHT MATERIAL AND SIZE OF HYDRAULIC TUBES The hydraulic cylinder tubes should be selected according to the system pressure, flow and application environment. Must pay attention to the strength of the tubing whether is enough, whether the pipe diameter and the wall thick...

Hydraulic cylinder tube  is one typical application type of honed tube. It is made from  cold drawn seamless steel tube  (CDS tube), by the process of honing or Skiving & Roller Burnishing (SRB tube) on the inside surface. It is widely used to manufacture hydraulic cylinders, so it is known as hydraulic cylinder tube. As the most experienced hydraulic cylinder tube supplier and manufacturer, we can understand the requirements of our customers accurately, and we can give our suggestions to our customers to help them to choose the right materials and the hydraulic cylinder tube sizes. Here below are the main features of our hydraulic precision cylinder tubes. Tolerance  Our cylinder tubes with high accuracy tolerance can be provided by us at premium cost, mostly the tolerance of the honed tube  ID is ISO H8 ; and we also can manufacture hydraulic cylinder tubes with  ID tolerance H7 or H9  on customer’s request. Ovality  The ovality of cyli...

The required barrel is a key part of hydraulic cylinder , and sometimes the direct acting component of hydraulic cylinder (when piston rod or plunger is fixed); the barrel, end cover and piston (plunger) form a sealed chamber for containing pressure oil and driving the load for acting; thus the barrel has requirements for strength, rigidity and sealing as below: (1) The barrel should have sufficient strength to prevent permanent deformation under long-term rated operating pressure and short-term dynamic test pressure. (2) The barrel should have sufficient rigidity to prevent bending caused by lateral force imposed by the piston and reacting force during installation. (3) Reliable seal: The grade of dimensional tolerance and accuracy of geometric tolerance of cylinder inner surface, piston seal and supporting ring should be designed rationally to ensure reliable seal and reduce wear. (4) The cylinder barrel to be welded should have good weldability to avoid cracking or excess...