By Josh Cosford, Contributing Editor Sometimes, there’s a practical and propitious device that’s been around forever, only to be discovered by happenchance, yet it provides immense value and serendipity. I have been known to use hyperbole in my writing, and maybe so here. Still, if this article convinces just one reader to use this simple … [Read more...] about Where are buffer seals used on hydraulic cylinders?
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Hydraulic oil analysis part 2 – determining viscosity
Last month, we discussed how vital an oil analysis program is for the reliability of your hydraulically powered machinery. This article is the second in the series where I discuss the many important qualities a competent oil analysis lab can identify for you. Oil viscosity is a primary driver in the oil selection process and is often the only … [Read more...] about Hydraulic oil analysis part 2 – determining viscosity
Wear rings get no respect in cylinder function
By Josh Cosford, Contributing Editor When buying a cylinder repair kit, you generally expect to open a plastic bag filled with O-rings, rod seals, end seals and other synthetic rubber bits used to freshen up an old air or hydraulic cylinder. Often, we call such an assembly of parts a seal kit, which completely forsakes a family member necessary … [Read more...] about Wear rings get no respect in cylinder function
12 tips for leakage prevention through proper sealing design and selection
By Josh Cosford, Contributing Editor Seals used for fluid power applications are highly varied and specific to each component and application. From simply sealing pressurized air from atmospheric air for pneumatic valves to preventing hydraulic oil from leaking into waterways from the rudder cylinder on watercraft, there are few conditions in … [Read more...] about 12 tips for leakage prevention through proper sealing design and selection
A primer on hydraulic oil analysis
By Josh Cosford, Contributing Editor This article is the first in our series (find the rest here: part 2 viscosity, part 3 particles, part 4 water, part 5 acidity, and part 6 spectrometry) on hydraulic oil analysis programs. Hydraulic oil is the lifeblood of your hydraulic system, circulating primarily as a power transmission medium but also … [Read more...] about A primer on hydraulic oil analysis
How long should hydraulic fluid last?
By Josh Cosford, Contributing Editor Forever. It should last forever. Thanks for reading, and come back next week for more YouTube Shorts. I kid, of course, although there is always truth in comedy because you should treat your oil as your forever fluid. Of course, simply showering your hydraulic fluid with love will not guarantee a lifelong … [Read more...] about How long should hydraulic fluid last?
What are the symptoms of a clogged hydraulic filter?
By Josh Cosford, Contributing Editor In the case of hydraulic systems, efficiency and reliability are paramount, and these systems, used in various industries, rely on the seamless flow of hydraulic fluid to power heavy machinery and equipment. One crucial component that ensures the reliable operation of the pumps, valves and actuators is the … [Read more...] about What are the symptoms of a clogged hydraulic filter?
How can you tell if you have air in your hydraulic oil?
By Josh Cosford, Contributing Editor Hydraulic systems are the workhorses of many industries, powering everything from heavy machinery to manufacturing equipment. The lifeblood of these machines is hydraulic oil, which transmits power, dissipates heat, carries away contamination and lubricates components. However, just like any other fluid-based … [Read more...] about How can you tell if you have air in your hydraulic oil?
How to evaluate chemical resistance and fluid compatibility of seal materials
Contributed by Seema Gangatirkar, Greene Tweed Matching the right elastomer to an application is key to ensuring an O-ring's optimal performance and mitigating premature failure. One critical factor to consider is resistance to process fluids. Different types of elastomers have differing resistance to various fluids, making material selection … [Read more...] about How to evaluate chemical resistance and fluid compatibility of seal materials
Static versus dynamic seals in fluid power
By Josh Cosford, Contributing Editor Let's square off in a squared circle to discuss why dynamic seals are never square. I suppose one could manufacture a square seal, but perhaps that would be more of a gasket. Either way, we're pitting static seals against dynamic seals to see who comes out on top, and you may find yourself surprised by the … [Read more...] about Static versus dynamic seals in fluid power
