Komatsu 7079967870 707-99-67870 Boom Cylinder Repair Seal Kit Fits PC400LC-8 PC400-8 PC400-8R

Komatsu 7079967870 707-99-67870 Boom Cylinder Repair Seal Kit Fits PC400LC-8 PC400-8 PC400-8R

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Influencing factors of seals:

Hydraulic seals play a vital role in the integration of hydraulics and pneumatics. If the seals of a hydraulic and pneumatic component product are not good enough, then this hydraulic and pneumatic component product is not a good product. There are many factors that affect seals.

(1) First of all, pressure is an important factor affecting the quality of the seal. The level of pressure and the length of the pressure cycle change have a great impact on the damage of the seal (such as extrusion). The higher the pressure, the greater the impact of other factors on the performance of the seal, such as temperature, speed, seal material, clearance between the piston and cylinder, and clearance between the piston and cylinder head.

(2) Another one is temperature and friction. It is difficult to describe the maximum use temperature and minimum use temperature of a seal material, because it is the result of the combined influence of a series of factors. For the different working temperatures of the piston and the piston rod, they should be selected differently. Another is the surface roughness of the seal product, the characteristics of the surface, the pressure, the medium, the temperature, the material of the seal, the type of the seal and the speed of movement, which are all factors that affect the seal.

(3)The last one is surface treatment. Experience has shown that the characteristics of the surface of the cylinder piston and piston rod have a great influence on the life of the seal. Surface properties are often defined by the value of surface roughness RA, which is the arithmetic mean of the absolute value of the deviation of the surface shape from the centerline. However, these values ​​do not fully represent the effect of the surface condition on the seal, because even with the same roughness, different surface shape features can cause different degrees of seal wear to the seal.

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• Guangzhou Suncar Seals Co., Ltd. is a foreign trade company specializing in construction machinery seals. Suncar has a complete management center, professional product consulting services, innovative research and development of product production, efficient logistics and distribution and other organizational structures. At present, the company's business covers many regions at home and abroad.

• Suncar Seals entered the construction machinery oil seal industry in 2008 and has nearly 12 years of oil seal technology experience. Suncar Seals has always maintained its core technology advantages, advanced manufacturing and processing capabilities, scientific management system and complete after-sales system. It is recognized as one of the most promising companies in China's future mechanical oil seal business.

• Suncar Seals has a wealth of experience in production and processing and a good production environment. Product is used for excavators, bulldozers and wheel loaders of Komatsu, C.A.T, JCB, Hitachi, Sumitomo, Kobelco, SUNCARVO.L.VO, KATO, Daewoo, CASE, John Deere and other brands.

• Suncar Seals company provide construction machinery equipment such as loaders and crawler excavators provide high-quality, high-performance, long-life seals and vehicle parts, which solves the problem of maintenance and replacement of construction machinery parts for customers. Relying on its good reputation in the machinery industry, SUNCAR will always maintain its original intention, actively develop and create a unique brand belonging to the company, and provide customers with high-quality products at lower costs, better quality and good service.