13111-159 St. Edmonton, Alberta, Canada T5V 1H6 |
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Ph: (780)452-2876 Fax: (780)451-4664 |
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Toll Free 1-800-406-3111 |
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Identify your leveling jack with our specification pdf templates
At RHK we are certified in:
Quality ISO 9001
Safety OHSAS 18001
Environmental ISO 14001
Call: 1-780-446-4717
Manufacture of Single, Two or Three Stage Cylinders, Leveling Jacks, Make Up & Break Out Cylinder. Each cylinder & jack is engineered to meet safety, material strength & load capacity guidelines.. Call, fax or e-mail us for a quote. |
13111-159 St. Edmonton, Alberta, Canada T5V 1H6 |
|
Ph: (780)452-2876 Fax: (780)451-4664 |
|
Toll Free 1-800-406-3111 |
|
Failure of hydraulic cylinders can be caused by many reasons, here are a few that we see on a regular basis:
1. Seal Failure - this can occur due to seal materials deteriorating with time, cylinder cycles, fluid temperature, fluid condition & condition of the cylinder components. Cylinders do not usually fail from this cause. However this is the usual symptom of the problem.
2. Rod Condition - Most cylinder rods are polished & hard chromed, any deterioration of the finish or straightness will cause seal failure & external oil leakage.
3. Cylinder Bore Condition - Most cylinder bores are honed to Ra8 to Ra16 Micro finish & a .1mm or .004 inch diameter tolerance. Any deterioration to Surface finish or Dimensional Clearances will cause Internal Oil Leakage & the cylinder may not function at full efficiency.
4. Failure of the Mounting Connections - Cylinders usually require mounting. Some styles incorporate threads, pins, trunions, tabs, bolts, bearings or bushings as an example to attach the cylinder to the mechanism that they are operating. Failure of any of these devices can stop operation of the cylinder.
5. Failures of the Porting - All cylinders require flanges, couplings, & fittings as a method of receiving oil flow from the control system. Failure of these items will cause failure of the component.