Hydraulic Cylinder Tube/Honed Tube Usage Problems Part1 - Inner Wall Scoring and Wear
Release time:
2026-04-01
The hydraulic cylinder barrel is the core pressure-bearing and guiding component of the hydraulic cylinder. It operates under high pressure and high-frequency reciprocating motion for extended periods, and its working condition directly determines the operational stability of the entire hydraulic system. In actual use, influenced by factors such as operating conditions, hydraulic fluid, installation, and maintenance, the cylinder barrel is prone to various types of damage and failure. The following are some of the most common core problems:
1. Inner Wall Scoring and Wear
This is one of the most frequent problems in hydraulic cylinder use, especially common in harsh environments such as construction machinery and mining equipment.
Problem Manifestations
Longitudinal scratches and grooves appear on the inner wall of the cylinder barrel. In severe cases, large-area "cylinder scoring" occurs. The originally smooth inner wall becomes rough, and the clearance between the piston and the cylinder barrel gradually increases.
Cause Analysis
- Insufficient hydraulic oil cleanliness: Hard particles such as sand and iron filings mixed in the oil scratch the inner wall with the reciprocating motion of the piston.
- Foreign objects accidentally enter the cylinder during assembly or maintenance, scratching the inner wall during operation.
- Long-term high-frequency reciprocating motion causes normal abrasive wear on the inner wall, gradually losing its original dimensional accuracy.
Impact
Inner wall damage accelerates the wear of piston seals, directly causing internal leakage in the cylinder. This results in weak cylinder movement, reduced speed, and in severe cases, pressure holding failure, rendering the equipment unable to perform positioning, support, and other functions.
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