What Causes Hydraulic Hose Failure?

Hydraulic hose failures are not accidents. It is always someone’s fault. Poor design, lack of maintenance, a dirty environment can all lead to hose failure.

Here are some common reasons hoses fail and how to avoid work stoppage and failure.

  • Poor Assembly Practices Improperly assembled hoses fail fast. Under-crimping, over-crimping, and poor crimp engagement are common. A poorly crimped hose will not effectively hold the hose end on the cover and fail under pressure. Over-crimping can cause destroy the reinforcement layer and cause a blowout. If the insertion is incorrect you have poor bite and the fitting will pop out under pressure.
  • High Temperature Excessive temperature beyond the tolerances of your hose drastically increases the rate at which the hose degrades. The tube and cover become incapable of staying flexible yet firm. The tube will bulge out of the reinforcement and the cover is more likely to scuff, chuff, peel or become oxidized.
  • Abrasion via Vibration this can often be prevented by properly routing your hose. This can also result in failed hose securing which results in vibration and rubbing. Abrasion resistant sleeves are available when vibration can not be avoided.
  • Poor Routing Stress on the crip and more bending, hose movement, and more can stress joints. Don’t allow bending or pinching at the fitting. Hose clamps and intelligent routing will prevent these issues.
  • Bad Material Choices The inner hose tube and the carcass have exposure to corrosive chemicals that break down the material. Contaminated hydraulic material increases oxidation and breakdown of the tube. Ambient chemicals can break down the cover.

Ensure that you are practicing proper maintenance and making smart choices in your hydraulic systems.

5 thoughts on “What Causes Hydraulic Hose Failure?”

  1. I understand what you mentioned about how a badly crimped hose won’t keep the hose end on the cover well and will break under pressure. At the industrial company he oversees, my husband frequently interacts with hydraulic cylinders, thus he should be informed of this. Additionally, I believe that he needs access to an Emergency Hydraulic Cylinder Repair┬áservice that he may use whenever.

    1. Well we have a very fast turn around time for most projects. Reach out to our cylinder specialist today for more info on how we can be an asset to your husbands position. 919-295-0332 and ask for Nick!!!

  2. It’s good to know that hydraulic hoses are very susceptible to high temperatures. I have several hydraulic hoses in my warehouse, and I noticed that some of them have been crimping lately. The machine that they’re close to is really warm, so I suppose that might be the reason.

  3. Your explanation of how an improperly crimped hose can break under pressure and not be able to retain the hose end on the cover was intriguing to me. My husband works with hydraulic cylinders all the time at the industrial firm he manages, so he should know this. In addition, I think he should have any time access to an emergency hydraulic cylinder repair service.

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