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A new blog post: Hydraulic Cylinder Tips - Part 1

Author : Andrew Delaney Parker Hannifin

03 December 2012

The first of a seven part series by Andrew Delaney offering useful tips for hydraulic engineers and hydraulics maintenance professionals.

Andrew Delaney

Check the glands and seals!
If a hydraulic cylinder develops a leak, it is most likely to be from the gland. Premature seal failure may be caused by the presence of abrasive particles – either from the external environment or carried in contaminated hydraulic fluids.

Seals can also fail due to excessive temperatures or unsuitable seal materials for the application, or through premature wear caused by excessive side loading. When specifying or overhauling a cylinder, check that the specification of the seal is suited to the fluid medium and application.

By incorporating separate, detachable gland assemblies in their designs, cylinder manufacturers can help facilitate ease of maintenance; often without the need to remove the cylinder from the machine. As well as minimising downtime, detachable glands simplify handling and reduce the stock holding of spare parts.


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