Cogsdill Valve Seat Pocket Roller Burnishing

Описание: By using Cogsdill’s “Patented” Roller Burnishing Slide with our ZX tooling, you can achieve surface finishes not obtainable by machining alone!!

Check the end of the video to see the results.


Valves are essential parts of any piping system and are widely used in the oil and gas industry to control the flow and pressure of contents – whether oil, gas, liquid or vapours – by opening, closing, or partially obstructing various passageways.

The valve seat pocket is a challenging feature to machine because of the narrow flow bore diameter, vibration tendencies, interrupted cuts, high tolerance and surface demands as well as long overhangs that require a tool with a stretched radial reach.

Cogsdill have the solution, with our extended and supported long-reaching ZX Modular Boring Tools called Valve Seat Pocket Tools. There tools are dedicated to machine cavities or different geometries inside deep bores. Valve Seat Pocket Tools feature an end cap mounted pilot shaft which feeds inside a collet pilot, mounted inside the bore for accurate support during machining operation.

ZX Valve Seat Pocket Tools have enough stroke and strength to rough-machine preclad seat pocket cavities and, using the same tool, to finish-machine the pocket in Inconel after cladding. Non-clad pockets can also be machined. Seat pocket tools are commonly used in steel, stainless steel, and Inconel. All tools feature 2:1 actuation ratio for easy programming.

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