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A question I’m asked regularly is “What is the best way to test the integrity of the piston seal in a double-acting hydraulic cylinder?”
There is a simple bench-test for doing this but it involves the intensification of pressure in the cylinder. While the test procedure is safe if you understand the concept of pressure intensification in a hydraulic cylinder – it is in...
In a previous blog post I discussed the true cost of hydraulic oil leaks. In the case of oil leaks, the expenses that need to be considered include:
Make-up fluid;
Clean-up;
Disposal;
Contaminant ingress; and
Safety.
But what about hydraulics’ fluid power cousin – pneumatics? One of the advantages pneumatics has over hydraulics is its cle...
Hydraulic hose has a finite service life, which can be reduced by a number of factors. From a maintenance perspective, little or no attention is usually paid to the hoses on a hydraulic machine until a failure occurs. And hydraulic hose failures cost more than the replacement hose. Additional costs can include:
–Clean up, disposal and replacement of lost hydraulic oil....
Based on my experience at least, electrostatic discharge in hydraulic systems is not a widespread problem. But for reasons I’ll explain in a moment, it may be on the increase, so it’s definitely something you need to be aware of.
As you probably remember from school science experiments, electrostatic charge is generated whenever there is friction between two bodies mov...