Recently, a major mining company conducted an analysis to determine the most common failures on their R2900 Lift Cylinders. After collecting some data, it appeared that chrome damage, likely from fly rock, was the biggest culprit.
When a hydraulic cylinder is in an extended position, the rod is particularly vulnerable to damage. Fly rock can hit the exposed chrome, leaving pits, scores and dents. This can cause oil leaks and ultimately, seal failure.
There are a few options available to try and mitigate against this issue, but we believe bellows give an additional layer of protection to solve this problem. They also happen to also be one of the most cost effective solutions available.