Spindle and Slurry Deburring

Home Products Surface Finishing and Refinement Spindle and Slurry Deburring

Since the metalworking industry has a wide variety of finishing requirements and an equally wide range of products to be finished, the efforts necessary to accomplish the desired results demand increasing degrees of specialization.

The spindle concept is sometimes referred to as a “Slurry Deburring Machine” or “Flowing Abrasive Machine.” The equipment generally includes a circular rotating tub holding lose media/abrasive, a rotary spindle to hold parts and fixturing.

The principle of this process is to use slurry deburring to finish a workpiece mounted on the rotary spindle by immersing it into a rapidly moving abrasive slurry. The velocity of the abrasive is generated by the rotating tub speed suitable for the process requirements. The abrasive slurry particles swiftly flow over and through holes and rough edges, removing sharpness and burrs.

The following capabilities and advantages of spindle finishing are justifiably recognized:

  • Rapid, precision finishing of parts.
  • Part dimensions can be maintained to extremely close tolerances.
  • Uniform deburring, radius forming, blending of machine or grind lines, and improved micro-inch surface finishes can be accomplished on external surfaces.
  • Short process cycles, generally ranging from 5 seconds to 5 minutes.
  • Parts are fixtured, resulting in no damage due to part-on-part impingement.

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Spindle Finishing Models and Specifications

Model Width Length Height Horsepower

 2SF-36

 53″

 86″

 63″

 7-1/2

 2SF-48B

 59″

 94″

 68″

 10

 2SF-48D

 87″

 94″

 75″

20


In this video, you can see abrasive slurry moving at speeds of up to 1000 surface feet per minute. This processes large parts or clusters of small parts on spindle mounted chucks. Then the centrifugal force of the slurry machine spins the selected finishing media into a “form-fitting grinding wheel”. Slowly rotating the parts in mass assures uniform deburring and finishing of all surfaces. This surface deburring machine can deliver precision finishing of gears, bearing cages, splined shafts, pump rotors, jet compressor discs, jet blades and other complex parts. Contact Advanced Deburring & Finishing for the slurry machine you need!

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operation of sutton centri-flo

An entirely new machine design which makes possible high speed deburring and finishing of a multiplicity of larger size piece parts heretofore impractical except by hand methods. Centri-flo equipment provides a controlled method of consistently deburring, generating radii, and improving microinch surface finishes to the most exacting engineering requirements, completely eliminating the element of human error.

An abrasive slurry is contained in a circular tank which is rotated at a high rate of speed. Centrifugal force causes the abrasive slurry to simulate a form fitting grinding wheel at the periphery of the tank. Piece parts to be processed are automatically fixtured to rotating spindles which are indexed into the abrasive media for an electrically timed predetermined cycle. Spindle rotation assures that piece part will be worked upon uniformly. At the end of the processing cycle the deburring spindle automatically returns to the loading position where the finished part is rinsed and the spindle is reloaded with another raw part. The operator’s only function is to alternately load and unload the two spindles.

Part sizes 12″ up to 48″ diameter.

CFT-4000-1 “TORNADO”

Model CFT-4000-1 is capable of processing suitable piece parts up to 40″ diameter; and is powered by a 75 HP Variable Speed Drive Unit. All other basic functions are same as CFT-2000-1.




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