Hydraulic cylinder honing 

Don't skip critical steps when rebuilding - Always hone your cylinders

Honing

Honing is metal finishing process much like fine grinding and is used to create the optimal surface finish in a hydraulic cylinder tube. It is critical part to a cylinder rebuild. It is a simple process and a small portion of the total cost of a cylinder repair.

 

A properly honed tube is the basis for a superb seal, smooth operation and extended seal life for any hydraulic cylinder. Leaks are the most widely cited repair indicators prompting a cylinder repair. When leaks are present, contaminants can enter the system creating scratches, low spots and other irregularities in the cylinder tube wall. These irregularities accelerate seal wear and eventually cause internal leaks. Internal leakage is a silent killer that decreases performance.

 

Every time a cylinder is resealed, light honing should be performed as part of a thorough repair. It is widely accepted that honing when resealing will save you time and money when you consider the costs of more frequent rebuilds, shortened seal life, and lost time. A suitable hone job will renew the bore finish and provide a true bore that is necessary to achieve maximum life, peak performance and reduced downtime.

 

Deglazing is another reason to hone a cylinder before installing new seals. Deglazing will in effect restore the original crosshatch finish that will improve lubrication, minimize wear and offer smoother operation. Honing can also be considered an inspection tool. After a light hone, surface imperfections may be revealed that could indicate a more severe condition.

 

  • Deglazes the Surface and Creates a Cross-Hatched Surface Finish

  • Improved Lubrication - Uniform Wear – Longer Seal Life

  • Corrects Minor Surface Irregularities

  • Scratches – Dents - Worn Areas – Minor Galling

  • Helps Correct Geometrical Issues

  • Taper – Bell Mouth – Out of Round - Ballooning

  • May Reveal more Serious Surface or Geometrical Issues

  • Can remove up to .010” (.25mm) and use standard cylinder seals

 

Severe cylinder damage

In some instances, cylinder damage is too severe and a light hone will not be sufficient. In such cases, we can offer several options for a sound repair.

 

Process

 

  • Heavy hone to “Clean Up” to correct both surface and geometrical problems.

  • Custom over-size seals sourced and precisely matched to the finished bore diameter. Many times we can ”Salvage” a tube utilizing our expert welding and machining capabilities.

  • Welding of most common materials used in hydraulic cylinders.

  • If a tube is a total loss, a new tube can be manufactured to meet or exceed all OEM Specifications.

  • We have a broad inventory of commonly used tube material and sizes.

 

Our cylinders are designed to be durable, versatile and repairable. Our team of technical professionals uses CAD systems to manufacture all types of cylinders to meet exacting performance requirements. At Lake Tool & Hydraulic we can make changes in existing hydraulic cylinders, repair damaged cylinders or fabricate new cylinders with accuracy and efficiency. Complete cylinder service by seasoned experts. Call the experts at Lake Tool & Hydraulics today and learn more about how honing can help you!