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Welcome to the new Home of Abrasives World
Welcome to the new Home of Abrasives World

Correct Surface Speed

The fundamental reality is that abrasives function similarly to any cutting tool. Incorrect usage, particularly at inappropriate speeds, can result in subpar performance, premature wear, or, in the worst-case scenario, failure to achieve the desired outcome.

Determining the Correct Speed Refer to the table below for a concise summary of the recommended and correct surface speeds rpm

Angle Grinders:

Material to be processed 4” / 100mm 4 ½” / 115mm 5” / 125mm 7” / 178mm
Stainless steel, tool steel, high speed steel 3500 – 6000 3000 – 5000 2750 – 4600 1900 – 3200
Cast iron, carbon steel 4800 – 8600 4100 – 7500 3820 – 6900 2650 – 4775
Non-ferrous metals, copper, brass 4800 – 6700 4100 – 5800 3820 – 5350 2650 – 3700
Aluminium, zinc 3500 – 6000 3000 – 5000 2750 – 4600 1900 – 3200
Hard and hardened steel  1500 – 2900 1300 – 2500 1200 – 2300 850 – 1600
Titanium and titanium alloys 1900 – 4800 1650 – 5800 1500 – 3800 1050 – 2650
Glass, ceramic materials and stone 1500 – 1900 1300 – 2500 1200 – 2300 850 – 1600
Acrylics 955 – 1500 830 – 1300 760 – 1200 530 –   850
Plastic and rubber 1900 – 3500 1650 – 3000 1500 – 2750 1050 – 1900
Wood 2850 – 4800 2500 – 5800 2300 – 3800 1600 – 2650
Lacquers, varnishes 1500 – 1900 1300 – 2500 1200 – 2300 850 – 1600

 

Powerfile Machines:

Powerfile machines vary widely in terms of their performance capabilities. A recommendation below on whether fixed speed or variable is required for a particular material.

 

Material to be Processed Machine Recommendation
Stainless steel, tool steel, high speed steel   Variable speed
Cast iron, carbon steel   Fixed speed
Non-ferrous metals, copper, brass   Variable speed ideal.
Aluminium, zinc   Variable speed
Hard and hardened steel   Variable speed with low speed option
Titanium and titanium alloys   Variable speed with low speed option
Glass, ceramic materials and stone   Variable speed with low speed option
Acrylics   Variable speed with low speed option
Plastic and rubber   Variable speed with low speed option
Wood   Variable speed with low speed option
Lacquers, varnishes   Variable speed with low speed option

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