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Blade RPM vs. Surface Feet Per Minute (SFPM)
When choosing a blade for your cutting conditions, follow the blade
manufacturer’s recommendations. Match the blade speed (Blade Shaft RPM) to
the recommended blade Surface Feet Per Minute (SFPM).
SFPM 16”
diam.
RPM
18”
diam.
RPM
20”
diam.
RPM
24”
diam.
RPM
26”
diam.
RPM
30”
diam.
RPM
36”
diam.
RPM
42”
diam.
RPM
48”
diam.
RPM
8,000 1910 1698 1528 1273 1175 1019 849 728 636
8,500 2029 1804 1623 1353 1249 1082 902 773 676
9,000 2149 1910 1719 1432 1322 1146 955 819 716
9,500 2268 2016 1814 1512 1396 1210 1008 864 756
10,000 2387 2122 1910 1592 1469 1273 1061 910 796
10,500 2507 2228 2005 1671 1543 1337 1114 955 836
11,000 2626 2334 2101 1751 1616 1401 1167 1001 875
11,500 2745 2440 2196 1830 1690 1464 1220 1046 915
12,000 2865 2546 2292 1910 1763 1528 1273 1092 955
12,500 2984 2653 2387 1989 1836 1592 1326 1137 995
13,000 3104 2759 2483 2069 1910 1655 1378 1183 1035
13,500 3229 2866 2581 2149 1985 1719 1433 1228 1074
14,000 3349 2972 2676 2229 2058 1783 1486 1273 1114
14,500 3468 3078 2772 2308 2132 1847 1532 1319 1153
CAUTION
§ Verify that the engine start switch is OFF before installing blade.
§ Tighten the 5/8” blade-mounting bolt to
125-175 foot-pounds torque.