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Hydraulic piston rod structure design requirements
Jun 25, 2018

In order to meet the requirements of practical applications, the requirements for various aspects of the hydraulic piston rod are usually strict when machining and manufacturing. Moreover, the quality of the hydraulic cylinder is often directly affected by the quality of the hydraulic piston rod, which belongs to a connecting member that supports the piston to perform work, and is widely used in the cylinder and the cylinder movement executing component.


Combined with its operating characteristics to analyze the hydraulic piston rod in the use of frequent movement, so its quality and reliability will directly affect the life and reliability of the entire product. It is generally required that the surface roughness is controlled at Ra 0.4-0.8um, and the requirements for coaxiality and wear resistance are strict.


Although the structural design does not want to bear radial forces, it will be directly limited by the actual structure when used, and the hydraulic piston rod will inevitably withstand a considerable portion of its radial external force. At the same time, the length of the piston of the hydraulic cylinder must be appropriate, generally taking 0.7 to 1.0 times of the outer diameter of the piston rod.


In addition, in the processing process, production standards should be strictly observed to ensure that the hydraulic piston rod has a good guiding effect and a sufficient bearing surface area, so as to reduce wear and improve the service life of the hydraulic cylinder. Generally, the coaxial tolerance of the outer diameter of the hydraulic piston rod to the inner hole and the sealing groove should be within 0.02 mm.http://www.xhychromerod.com/