Hydraulic cylinders play a crucial role across numerous industries. When one malfunctions, the consequences can be severe, disrupting operations and halting productivity. Many customers have reported issues with their hydraulic cylinders failing to function properly. To address these problems effectively, it's essential to identify the root cause first.
In most cases, hydraulic cylinders that fail to operate typically occur in newly installed units. Start by examining external factors like whether the mechanism attached to the cylinder is too forceful or jammed. Also, verify if the hydraulic fluid pressure is within the acceptable range.
If no external issues are found, inspect the cylinder itself. Issues might include insufficient oil entering the cylinder, overly tight sliding components, or poor design and manufacturing.
Further investigation should focus on the hydraulic lines and circuits, including checking for blockages at hose connections and assessing the condition of the overflow valve seat. Dirt accumulation can lead to leaks due to poor sealing between the cone valve and valve seat, so regular cleaning is vital.
Design flaws can also result in non-functioning cylinders, particularly when the return pressure fails after the piston stroke or when the working area is too small during startup. Similarly, excessive lateral loads, weak structural support, or physical damage can cause similar issues. Proper installation is key—ensure the cylinder’s axial alignment matches its movement direction and that the load aligns with the cylinder axis to prevent eccentric loading.
When mounted horizontally, the weight of the piston and rod can cause deflection, leading to uneven loads on the guide bushings and pistons. This can damage seals, cause leaks, and even jam the piston inside the barrel. Horizontal mounting is generally discouraged.
After years of research and development, Henan Kexing has introduced innovative technologies to enhance the quality of our hydraulic cylinders. We’ve eliminated outdated practices to ensure reliability and efficiency. If you're looking for custom hydraulic cylinders, consider reaching out to Henan Kexing, your trusted manufacturer.
This article was originally published by Henan Kexing Hydraulic Co., Ltd. Reproduction is permitted but please credit the source.
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While hydraulic cylinders are essential for industrial applications, their maintenance and troubleshooting require attention to detail. Understanding common causes of failure can help prevent costly downtime. Regular inspections, proper installation, and adherence to technical specifications are critical for long-term performance. At Henan Kexing, we prioritize innovation and quality to meet diverse customer needs. Our team is ready to assist with any hydraulic cylinder requirements, whether standard or customized solutions.
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