Wuxi YUTONG

  Designing   hydraulic cylinders   requires many factors involved in the process. Ignoring any of these critical steps in the design process could increase the possibility of a design mistake. Hydraulic cylinders have many different working conditions, and that affects the design criteria. For example, the cylinders used in the mining & construction machines versus forestry have other design criteria in terms of materials used.  There are a few main variables that should be taken into account while designing a hydraulic cylinder. What to consider when specifying hydraulic cylinders? WORKING CONDITIONS In general, it’s essential to consider the working conditions – where and what – the hydraulic cylinder is designed to do and what kind of load it has to endure. For example, challenging working conditions could be a corrosive environment, falling rocks in the mining industry, or high working cycles causing welding fatigue and shortening seal life span. For example...

  Hydraulic cylinders power a range of industries, from agriculture to mining to construction and aerospace. Because they must withstand immense pressure, the different materials they're constructed from are solid and durable. Below are the most commonly utilized materials used in hydraulic cylinder servicing and production: Hydraulic Cylinder Barrel The cylinder barrel is a key component of a hydraulic cylinder, typically made from cold-rolled or honed seamless steel or carbon steel tubing. Cylinder tubes hold and contain the cylinder's pressure and house all parts essential for its functioning. Glands & Pistons The style of cylinder piston rods and glands is influenced by various design requirements, loading, and pressure. The standard material used for the barrel is high-tensile SAE C1026 or St52 cold-drawn honed tubes   for increased seal life. Other piston rod options include 4140 , aluminum, and stainless steel. Wiper, Rod, and Piston Seals Pressure characteristic...

  Honing is a unique abrasive machining process utilising hard tooling and perishable abrasives such as stones or diamonds. The stones are rotated with a lubricant under controlled pressure to produce a cross-hatch pattern on the surface of the cylinder. It is a simple process and a smaller part of the total process of a  hydraulic cylinder repair or rebuild. A finishing operation, primarily for the internal cylindrical surfaces of parts, that uses a fine-grain abrasive tool in the form of rods, or sticks, mounted on a honing head, or hone. The abrasive rods are pressed against the surface being machined, and the honing head, which is attached to the spindle of a honing machine, performs rotational and reciprocating motions. Honing is one of the last operations performed on a part; it follows boring, broaching, reaming, or grinding. Advantages of cylinder barrel honing : Improved lubrication Uniform wear Longer seal life Correct minor surface irregularities Correct geometric...

  As the main component of the hydraulic cylinder, the processing quality of the   cylinder barrel  directly affects the life and reliability of the entire product. The cylinder has high processing requirements, and its inner surface roughness is required to be Ra0.4 ~ 0.8um, and the requirements for coaxiality and wear resistance are strict. Generally, it is processed and produced by the principle of  honing  or rolling. The common materials of cylinder barrel are SAE1020, 1026, 1045,  ST52 seamless honed tubes , the steel tube is honed or rolled to meet the roughness requirement within 0.4μm. The low-pressure oil cylinder can use 1020 steel pipe, and the high-pressure oil cylinder can use CK45 steel pipe. As a professional cylinder barrel supplier, manufacturer,exporter in China,  Wuxi YUTONG  has more than 20 years production experience, we sell hydraulic honed tubing to customers and provide full range of technical support. Imperial sizes...

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...

  E355 ST52 Honed tube  is very widely used as cylinder barrel in hydraulic cylinder design and repair. It is the core part of the hydraulic cylinder.  Honing is a processing technique. Through the honing head, the reciprocating high-speed grinding technology is used to process the inner hole of the cold drawn pipe, so that the inner hole meets the requirements of the tolerance size and surface roughness we need. The advantages of our ST52 honed tubes 1. High precision tolerances;  Wuxi YUTONG ’s honed 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.   Advanced manufacturing equipment and facilities, including: cold drawing machine, cold roll...

  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...