Convolute wheels are used in a variety of different processes including edge breaking or radiusing, deburring, light deburring or blending, heavy deburring, finishing, and light corrosion, rust or oxidation removal. Preferred Abrasives’ convolute wheels consist of compressed nonwoven abrasives which are wrapped convolutely around a center core, producing a harder, one-directional wheel. Resin ratios and winding tension determine wheel density.
Convolute wheels feature continual exposure of cutting grains and consistent finishing ability throughout the product life. They minimize undercutting or gouging and provide an extremely consistent finish.
To help define our grading system, following are some of our popular grades: , 7SF, 8SF, 9SF, 9AF, or 9AM grade convolute wheels. The first digit corresponds to the density (hardness), the second digit corresponds to the grain (A stands for aluminium oxide and is used to produce a satin finish and S stands for silicon carbide and is used to produce a brighter, shiny finish), and the final digit is the grade designation (F stands for Fine, M stands for Medium).
We offer 7, 8, and 9 level hardness convolute wheels. Hardness is determined by the amount of abrasive bond and is dependent on the grit type of the wheel, among other factors. If you are unsure which level hardness to start with, we suggest working with a level 8 hardness convolute wheel and then adjusting as needed for your particular project.
Our convolute wheels can be used on most materials, the most common are:
- Stainless Steel
- Carbon steel
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Convolute Deburring WheelsPremium XL Wheels Premium XL wheels are a great choice for general deburring, blending, and final finishing. These wheels are heat and smear-resistant, and can be used wet, dry, or with oils to increase shine. XL2 Heavy Deburring XL2 Heavy Deburring wheels have an advanced resin system and higher grain content which extends the life and makes them the best choice for rapid stock removal and heavy deburring.
Green Final Polishing WheelsGreen Final Polish (GFP) wheels will leave a “mirror life” finish on a variety of metals. They will not alter part geometry and do not require any compound.
Metal Finishing WheelMetal Finishing wheels are durable and provide users with a long-lasting finishing wheel for decorative, satin, and antique finishing of stainless steel, brass, and aluminum.
Multi-Finishing WheelMulti-Finishing wheels are highly conformable and will provide a #4 RMS “Food Grade” finish. This is the best wheel to provide a bright, uniform linear finish on stainless steel or aluminum. This wheel should not be used on burrs.