Dear friends, today we will delve into how to choose suitable cylinder seals to extend the service life of the equipment. In hydraulic systems, oil cylinder seals (English name: Oil cylinder seal DSHmfCom) are a crucial part that can prevent hydraulic oil leakage and ensure the normal operation of the hydraulic system. Below, we will provide a detailed introduction on how to choose the appropriate cylinder seal from five aspects.

1、 Understand the working pressure of the oil cylinder
Firstly, we need to understand the working pressure of the oil cylinder. The higher the pressure of the oil cylinder, the harder the selected seal should be. For example, if the required pressure for the oil cylinder is greater than 25MPa, we need to choose high hardness seals to ensure the normal operation of the equipment. When working under high pressure, the hardness of the sealing element can effectively prevent deformation under high pressure, thereby avoiding the occurrence of oil leakage. Therefore, understanding the working pressure of the oil cylinder is one of the key factors in selecting suitable sealing components.
2、 Pay attention to the linear speed of the sealing element
The linear speed of the seal is also an important factor in the selection. During the operation of the oil cylinder, the sealing element will generate friction with the piston rod or the inner wall of the cylinder body, so it is necessary to ensure that the linear speed of the sealing element meets the requirements of the equipment. If the linear speed is too low, the sealing components are prone to wear and oil leakage; If the linear speed is too high, the seal is prone to heating and failure. Therefore, when selecting seals, it is necessary to pay attention to whether their linear speed meets the requirements of the equipment. This can be obtained by consulting the product manual or contacting the manufacturer to obtain the necessary information.
3、 Consider the temperature resistance performance of seals
In hydraulic systems, changes in oil temperature are inevitable. Therefore, we need to choose seals with good temperature resistance performance. The temperature resistance of the sealing element should be able to adapt to the temperature range of -30 ℃ to 110 ℃ to ensure normal operation under various temperature conditions. If the temperature resistance performance of the seal is insufficient, it may lead to premature aging or failure of the seal, thereby affecting the normal operation of the equipment. When selecting seals, attention can be paid to their materials and manufacturing processes to achieve better temperature resistance performance.
4、 Choose a dedicated seal
When selecting seals, we need to choose specialized seals based on the different parts of use. For example, shaft seals should choose shaft specific seals, and piston seals should choose piston specific seals. This can ensure that the seal has good sealing performance and a long service life under high pressure conditions. Special seals are usually designed according to specific usage environments, which can better adapt to the working conditions of oil cylinders, thus having higher performance and longer service life. When selecting specialized seals, you can refer to the product manual provided by the manufacturer or consult professional technical personnel for more information.
5、 Installing gaskets to improve sealing performance
To further improve the sealing performance of the seal, we can install a gasket at the root of the seal. The gasket has a certain hardness and deformation, which can reduce the deformation of the sealing element and reduce the risk of extrusion and tensile damage to the root of the sealing element. The hardness of the gasket is positively correlated with pressure, that is, the greater the pressure, the higher the hardness of the selected gasket. By installing washers, we can improve the stability of the sealing components, extend their service life, and also improve the overall performance of the hydraulic system. When installing gaskets, it is necessary to pay attention to the correct installation method and size to ensure that they can effectively improve sealing performance.