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ROUGH GRINDING WHEEL SPEED RECOMMENDATIONS
BE SAFE! Never exceed the maximum operating speed of the grinding wheel.

Type of Grain in
Grinding Wheel
Diameter of
Grinding Wheel
Description *Surface Feet
Per Minute
RPM's
White Aluminum Oxide 7" (175 mm) Fast stock removal. Less form holding capabilities 3400 to 3900 1850 to 2100
White Aluminum Oxide 8" (204 mm) Fast stock removal. Less form holding capabilities 3400 to 3900 1600 to 1900
White Aluminum Oxide 8-7/8" (225mm) Fast stock removal. Less form holding capabilities 3400 to 3900 1500 to 1700
White Aluminum Oxide 10" (254 mm) Fast stock removal. Less form holding capabilities 3400 to 3900 1300 to 1500
Pink Chromium Oxide 7" (175 mm) Aggressive grinding wheel holds form better than white wheels. 3400 to 3900 1850 to 2100
Pink Chromium Oxide 8" (204 mm) Aggressive grinding wheel holds form better than white wheels. 3400 to 3900 1600 to 1900
Pink Chromium Oxide 8-7/8" (225mm) Aggressive grinding wheel holds form better than white wheels. 3400 to 3900 1500 to 1700
Pink Chromium Oxide 10" (254 mm) Aggressive grinding wheel holds form better than white wheels. 3400 to 3900 1300 to 1500
Blue and White Ceramic 7" (175 mm) Most aggressive grinding wheel, resharpens itself, excellent shape holding capability, excellent on harder steels. 5000 to 5500 2650 to 2850
Blue and White Ceramic 8" (204 mm) Most aggressive grinding wheel, resharpens itself, excellent shape holding capability, excellent on harder steels. 5000 to 5500 2400 to 2600
Blue and White Ceramic 8-7/8" (225mm) Most aggressive grinding wheel, resharpens itself, excellent shape holding capability, excellent on harder steels. 5000 to 5500 2200 to 2400
Blue and White Ceramic 10" (254 mm) Most aggressive grinding wheel, resharpens itself, excellent shape holding capability, excellent on harder steels. 5000 to 5500 1900 to 2100
Blue and Pink Ceramic 7" (175 mm) Most aggressive grinding wheel, resharpens itself, excellent shape holding capability, excellent on harder steels. 5000 to 5500 2650 to 2850
Blue and Pink Ceramic 8" (204 mm) Most aggressive grinding wheel, resharpens itself, excellent shape holding capability, excellent on harder steels. 5000 to 5500 2400 to 2600
Blue and Pink Ceramic 8-7/8" (225mm) Most aggressive grinding wheel, resharpens itself, excellent shape holding capability, excellent on harder steels. 5000 to 5500 2200 to 2400
Blue and Pink Ceramic 10" (254 mm) Most aggressive grinding wheel, resharpens itself, excellent shape holding capability, excellent on harder steels. 5000 to 5500 1900 to 2100

*Surface Feet Per Minute (SFPM) Formula =

the Wheel Diameter X Pi or 3.1416 X Revolutions Per Minute
12
Wood Tech Enterprises
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P.O. Box 2226
Fairview, NC 28730 USA

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Phone: 828-628-4414
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