Recommended RPM for Cutting Blade

Column：Technical Guides Time：2019-07-10

RECOMMENDED RPM

Diameter

Recommended RPM

Maximum RPM

Diameter

Recommended RPM

Maximum RPM

4"

(105mm)

9,075

15,000

20"

(500mm)

1,815

3,055

5"

(125mm)

7,260

12,000

22"

(550mm)

1,650

2,780

6"

(150mm)

6,050

10,185

24"

(600mm)

1,515

2,550

8"

(200mm)

5,185

8,730

26"

(650mm)

1,400

2,350

9"

(230mm)

4,540

7,640

28"

(700mm)

1,300

2,185

10"

(250mm)

3,630

6,115

30"

(750mm)

1,210

2,040

12"

(300mm)

3,025

5,095

32"

(800mm)

1,135

1,910

14"

(350mm)

2,270

3,820

36"

(900mm)

1,010

1,700

16"

(400mm)

2,270

3,820

42"

(1000mm)

865

1,455

18"

(450mm)

2,020

3,395

48"

(1200mm)

760

1,275


For concrete and masonry products, the optimum speed range for recommended RPM is +/-10% (based on 9,500 SFPM-Surface Feet Per Minute) of the speed shown in the chart.

For hard and dense materials ( stone, hard title, etc.), the optimum speed range for recommended RPM is 10% to 25% less than the speed shown in the chart.

The blade shaft speeds (RPM’s at no load ) for most tools will be higher than the recommended RPM's listed in the chart. The actual blade shaft speed of the tool will show down under load, and should fall within the optimum speed range.

The operator should always make sure that the blade shaft speed of the tool is within the maximum safe limit of the blade before mounting any blade.


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