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Type of excavator hydraulic system

​According to the characteristics of hydraulic pumps, hydraulic systems used in hydraulic excavators generally include quantitative system, variable system and quantitative and variable system.

The role of the piston rod

(1) to have enough strength, stiffness and stability;(2) Good wear resistance and high machining accuracy and surface roughness requirements;

Cause of overheating of piston rod

(1) when the piston rod and stuffing box assembly is skewed, causing local friction, should be adjusted in time;(2) the sealing ring holding spring is too tight, the friction force is large, should be......

Causes of oil leakage in hydraulic cylinders of excavators and precautions for use

Friends engaged in construction machinery must be often troubled by the oil leakage of the hydraulic cylinder. For excavators, once the hydraulic cylinder leaks, there will be slow lifting and insuffi......

Cause analysis and treatment of discoloration of excavator cylinder

Many excavator users have encountered the problem of discoloration of the cylinder, thinking that the quality of the cylinder has a problem, and they are often very anxious. In fact, the discoloration......

Why is the excavator cylinder always broken? See if you have these five operations!

The newly-purchased excavator didn't do much work, and it kept breaking down. Some excavator failures were accumulated due to long-term improper operation.