Seek Help Choosing Fluid Power Cylinder Seals and Materials

Nov 24, 2015 7:00:00 AM LEAVE A COMMENT


In 1962, E.F. Houghton Co. published A Handbook On Hydraulic and Pneumatic Packings for the fluid power industry. In the opening chapter there is an illustration of a “typical animal hide” which depicted the best parts of the hide that could be fabricated into leather “U” cups, “V” rings, and gaskets to seal fluid power cylinders.

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FILED UNDER: Seal Solutions, Troubleshooting, Application

How To Avoid Cylinder Side Loading: 4 Ways to Compensate for Less Than Proper Cylinder Alignment

Apr 8, 2014 8:00:00 AM LEAVE A COMMENT

When installed with proper alignment, fluid power cylinders will provide the smooth trouble free performance for which they were intended.  Unfortunately, perfect alignment is extremely difficult, if not next to impossible to achieve. During cylinder operation, any misalignment can impose an eccentric force on the piston rod known as “side loading”.

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FILED UNDER: Troubleshooting, Sideloading

Checks and a Flood: Issues With a New Installation Cylinder

Mar 10, 2014 3:30:36 PM LEAVE A COMMENT

You know that sinking feeling when you take the first bite of a much needed lunch, the phone rings and you answer to hear the words "We have a problem; it’s a new installation and the tube seals have blown!" With thoughts of catching a snack later in the day, you attend the scene of the crime...

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FILED UNDER: Seal Solutions, Troubleshooting, Maintenance, Failure Analysis

4 Things to Consider When Forced with Long Term Storage of Cylinders Outdoors

Jan 27, 2014 8:09:45 AM LEAVE A COMMENT

Any piece of equipment operates best when it is used regularly within normal guidelines.

Take for example a classic car; it ran perfectly when you put it away last fall, but something happened during the long winter.

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FILED UNDER: Troubleshooting, Maintenance

Multiple Mountings: Magic or Misery?

Nov 22, 2013 3:00:52 AM LEAVE A COMMENT

In our experience, the call for more than one mounting feature on a cylinder is by no means a rare event.

We won’t say that all mounts can be combined; as clearly there are some features which would just interfere with each other. For instance, a Front Head (FHF) and a Side Lug (SL) cannot coexist on the same end of a cylinder. What is possible, however, is to have an FHF (Head) mount combined with a Side Lug at the Cap; if that serves a useful design purpose for you.

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FILED UNDER: Troubleshooting, Application

A Handy Platform

Nov 4, 2013 3:00:49 AM LEAVE A COMMENT

Ever thought that you have had to go a long way around a design problem to mount a particular component? Here's a hint that might possibly be a ‘quick-fix’ and a help if you're finding yourself in a similar situation.

Sheffer fits tie rod supports to long stroke cylinders to stop the tie rods from twanging like an out of tune banjo - and the design feature does a wonderful job of achieving that aim.

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FILED UNDER: Troubleshooting, Maintenance

Top 5 Reasons Your Cylinder Supplier Can Make You or Break You

Sep 23, 2013 4:00:02 AM LEAVE A COMMENT

When charged with the notorious "beating your head against a wall", and at the very least unpleasant, task of choosing a cylinder supplier -- one can quickly become disenchanted with all of the industry hype and mumbo jumbo.

From the mammoth sized companies, in which you can get lost and slip through the cracks, to the miniature sized companies that don't offer competitive quality or the same kinds of guarantees as the "big guys" -- the options seem pretty limited.

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FILED UNDER: Troubleshooting, Application, Maintenance

The Key to Some Types of Mounting

Sep 9, 2013 4:00:37 AM LEAVE A COMMENT

Most cylinders are fixed at one point along their length. Although there is guidance and best practices associated with all of the mounting types --our thoughts go back to the times we have seen side lug cylinders used incorrectly – in one case; to the extent that the tube to cap joint was ruined.

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FILED UNDER: Troubleshooting, Application

The Ultimate Cylinder Design Checklist

Jun 12, 2013 4:00:00 AM LEAVE A COMMENT

Many eager professionals looking for a cylinder solution fall susceptible to beginning their search prior to considering all that goes into applying the right cylinder for their application. Good news, you don’t have to be that person! A simple example is as follows:

An individual sends in an order for the following cylinder:

  • 6” HH Series, 3” Rod, 50” Stroke, FHF Mount, Style 2 Rod End, Port pos. 1 & 5, Non-Cushioned.

The cylinder is made and shipped in 3 days, to the delight of the customer and thanks to the Gold Program (go ahead, check it out), since it was a job that they had to get going in a hurry. The customer installs the cylinder and a few weeks later the cylinder starts to have leaking issues at the rod. They call up very upset that the cylinder is leaking and want it fixed quickly under warranty. We ask about the application to see if we can find out more to help solve their pain as to why the cylinder has failed so quickly.

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FILED UNDER: Troubleshooting, Application, Failure Analysis

Small Cylinders and Long Pipes

Apr 8, 2013 4:00:02 AM LEAVE A COMMENT

There was a time, almost a generation ago, when the HH range of cylinders used an array of (normally) four metallic rings as the piston seal. Their function was much along the lines of the ones used in a car engine to this day.

These rings were inert to more or less anything the world threw at them. Heat was an easy task, aggressive fluids no problem and the working surface was so hard that the tube was more likely to wear over time than the seals were to lose their size.

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FILED UNDER: Seal Solutions, Troubleshooting, Application, Maintenance, Innovation