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Cibo Convolute Abrasive Wheels

The most commonly used grades for convolute abrasive wheels are:

  • 9SFN, or 9S fine – Equivalent to the Cibo SA1 convolute wheel.
  • 8 AM or 8 A medium – Equivalent to the Cibo SA2 convolute wheels.
  • 7SFN or 7S fine grade – Equivalent to the Cibo SA3 convolute wheels.

 

The SA1 wheels are the hardest and most dense wheels, and are therefore excellent for tough deburring applications where a very fine, soft satin finish is required.

The SA2, or 8A medium wheel is our most popular wheel in 200mm / 8″ diameter for putting a brushed satin finish on architectural ironmongery such as aluminium door handles.

The SA7 or 7S fine wheel is again a finer grade which is also commonly used for deburring applcations or for brighter and finer satin brush finish.

Light deburring wheels are made of fine grade, soft density, unitized or convolute materials, which are typically designed to fit onto a bench grinder. Typicallly 150mm diameter and either 13mm or 25mm wide, primarily light deburring wheels are used for removing light burrs to leave behind a clean polished surface without damaging the workpiece.

Typical light deburring product applications:

  • SA grade 1 – Wound convolute wheel construction.  SA1 wheels (sometimes referred to as a 9 S Fine wheel) are the hardest of the deburring wheels and are made with a very fine abrasive grain. SA grade 5 is the most common deburring wheel -use it for removing fine machined threads. It leaves a semi-bright, uniform finish. Also commonly referred to as 2SFN deburring wheels.
  • SA grade 3 –  Wound convolute wheel construction.  The softer and more conformable of the convolute constructed wheels, the grade 3 (or 6 S Fine) deburring wheel gives a more comfortable feel on the workpiece and is ideal for use on softer edges. Use when a very fine architectural satin finish is required.
  • SA grade 6 – Unitised construction.  Often used in machine shops where a slightly heavier burr needs to be removed, or where there is there is a risk of the wheels being damaged by heavier edges.  Commonly referred to as 3SFN deburring wheels.
  • MA grade 8 – A coarser and more durable wheel.  Excellent for heavier burrs.  The MA8 will leave a distinct, fine satin finish.

3M primarily supply convolute light deburring wheels for bench grinder applications.  Below are the Cibo equivalent grades in the convolute wheel range:

 

3m LDW           Cibo LDW

9 S Fine               SA 1

8 S Medium          SA 2

7 S Fine               SA 3

And for the unitised wheel range 3M light deburring wheels

 

3M                  Cibo

2 SFN                   SA 5

3 SFN                   SA 6

 

Additionally Cibo also have the following grades:

SA 7 –  Harder than the SA 6, it provides longer life compared to the Cibo SA3 convolute wheels and creates a slightly finer finish.

MA7 – The same density as the SA7, but with a coarser girt in the wheel, meaning that the MA7 wheels will give a more distinct, but still fine, satin finish.

 

The Cibo equivalent to the 2S fine deburring wheel is the Cibo RebelOne range of SA 5 wheels.