Fluid Power World: What's the Difference between Honing and Roller-Burnishing

06/05/2020

Sunnen's Phil Hanna, product manager for machines/gages, was recently featured in Fluid Power World, discussing the difference between honing and roller-burnishing.

Hydraulic valves, piston pumps and cylinders require increasingly close fits between the piston or spool and bore to reduce internal leakage. The components also need precision surface finishes for high performance and long seal life.

That’s according to Phil Hanna, product manager for machines/gages at Sunnen Products, St. Louis. Hanna offered these observations in a presentation, “Bore Finishing for Hydraulic Components,” part of the virtual June NFPA/FPIC Regional Conference, which focused on improving fluid power systems with precision manufacturing.

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