A large surface copper mine experienced premature seal and cylinder failure on the stick cylinders of a large mining excavator.
Stick cylinders were exposed to severe operating conditions including shock and radial load, pressure peaks, and a harsh environment.
Cylinders lasted only 4,000 hours with their original seal repair kit.
The challenge was to extend the operating hours between maintenence intervals of the cylinders to improve the availability of the excavator. The mine was looking for a more reliable seal system to prolong the life of the cylinder’s metal components.