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Home > SAFETY > Grinding wheel speeds |
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| m/min |
r.p.m |
| Wheel dia |
1,000 |
1,500 |
1,800 |
2,000 |
2,400 |
2,700 |
3,000 |
3,600 |
3,800 |
4,800 |
6,000 |
| 6mm (1/4″) |
53,053 |
79,580 |
95,496 |
106,106 |
127,328 |
143,244 |
159,160 |
190,992 |
201,602 |
254,655 |
318,308 |
| 10 (2/6″) |
31,831 |
47,746 |
57,296 |
63,662 |
76,394 |
85,943 |
95,493 |
114,591 |
120,957 |
152,788 |
190,985 |
| 13 (1/2″) |
24,485 |
36,728 |
44,073 |
48,970 |
58,764 |
66,110 |
73,455 |
88,146 |
93,043 |
117,528 |
146,912 |
| 16 (5/6″) |
19,694 |
29,841 |
35,809 |
39,788 |
47,746 |
53,714 |
59,682 |
71,619 |
75,598 |
95,492 |
119,336 |
| 19 (3/4″) |
16,753 |
25,130 |
30,156 |
33,506 |
40,208 |
45,234 |
50,260 |
60,312 |
63,662 |
80,415 |
100,518 |
| 25 (1″) |
12,732 |
19,096 |
22,918 |
25,465 |
30,558 |
34,377 |
38,197 |
45,836 |
48,383 |
61,115 |
76,394 |
| 32 (1(1/4)″) |
9,947 |
14,921 |
17,905 |
19,895 |
23,873 |
26,858 |
29,842 |
35,810 |
37,800 |
47,747 |
59,683 |
| 38 (1(1/2)″) |
8,377 |
12,565 |
15,078 |
16,753 |
20,104 |
22,617 |
25,130 |
30,156 |
31,831 |
40,208 |
50,259 |
| 45 (1(3/4)″) |
7,074 |
10,610 |
12,733 |
14,147 |
16,977 |
19,099 |
21,221 |
25,465 |
26,880 |
33,953 |
42,441 |
| 50 (2″) |
6,366 |
9,549 |
11,459 |
12,732 |
15,279 |
17,189 |
19,099 |
22,918 |
24,191 |
30,558 |
38,197 |
| 65 (2(1/2)″) |
4,897 |
7,346 |
8,815 |
9,794 |
11,753 |
13,222 |
14,691 |
17,630 |
18,609 |
23,506 |
29,383 |
| 75 (3″) |
4,244 |
6,366 |
7,639 |
8,488 |
10,186 |
11,459 |
12,732 |
15,279 |
16,128 |
20,372 |
25,465 |
| 90 (3(1/2)″) |
3,537 |
5,305 |
6,366 |
7,074 |
8,488 |
9,549 |
10,610 |
12,733 |
13,440 |
16,977 |
21,221 |
| 100 (4″) |
3,183 |
4,775 |
5,730 |
6,366 |
7,639 |
8,594 |
9,549 |
11,459 |
12,096 |
15,279 |
19,099 |
| 115 (4(1/2″)) |
2,768 |
4,152 |
4,982 |
5,536 |
6,643 |
7,473 |
8,304 |
9,965 |
10,518 |
13,286 |
16,608 |
| 125 (5″) |
2,546 |
3,820 |
4,584 |
5,093 |
6,112 |
6,875 |
7,639 |
9,167 |
9,677 |
12,223 |
15,279 |
| 150 (6″) |
2,122 |
3,183 |
3,820 |
4,244 |
5,093 |
5,730 |
6,366 |
7,639 |
8,064 |
10,186 |
12,732 |
| 180 (7″) |
1,768 |
2,653 |
3,183 |
3,537 |
4,244 |
4,775 |
5,305 |
6,366 |
6,720 |
8,488 |
10,610 |
| 205 (8″) |
1,553 |
2,329 |
2,795 |
3,105 |
3,727 |
4,192 |
4,658 |
5,590 |
5,900 |
7,453 |
9,316 |
| 255 (10″) |
1,248 |
1,872 |
2,247 |
2,497 |
2,996 |
3,370 |
3,745 |
4,494 |
4,743 |
5,992 |
7,490 |
| 305 (12″) |
1,044 |
1,565 |
1,879 |
2,087 |
2,505 |
2,818 |
3,131 |
3,757 |
3,966 |
5,009 |
6,262 |
| 355 (14″) |
897 |
1,345 |
1,614 |
1,793 |
2,152 |
2,421 |
2,690 |
3,228 |
3,407 |
4,304 |
5,380 |
| 405 (16″) |
786 |
1,179 |
1,415 |
1,572 |
1,886 |
2,122 |
2,358 |
2,830 |
2,987 |
3,773 |
4,716 |
| 455 (18″) |
700 |
1,049 |
1,259 |
1,399 |
1,679 |
1,889 |
2,099 |
2,519 |
2,658 |
3,358 |
4,198 |
| 510 (20″) |
624 |
936 |
1,123 |
1,248 |
1,498 |
1,685 |
1,872 |
2,247 |
2,372 |
2,996 |
3,745 |
| 560 (22″) |
568 |
853 |
1,023 |
1,137 |
1,364 |
1,535 |
1,705 |
2,046 |
2,160 |
2,728 |
3,410 |
| 610 (24″) |
522 |
783 |
939 |
1,044 |
1,254 |
1,409 |
1,565 |
1,879 |
1,983 |
2,505 |
3,131 |
| 710 (28″) |
448 |
672 |
807 |
897 |
1,076 |
1,210 |
1,345 |
1,614 |
1,704 |
2,152 |
2,690 |
| 760 (30″) |
419 |
628 |
754 |
838 |
1,005 |
1,131 |
1,256 |
1,508 |
1,592 |
2,010 |
2,513 |
| 810 (32″) |
393 |
589 |
707 |
786 |
943 |
1,061 |
1,179 |
1,415 |
1,493 |
1,886 |
2,358 |
| 915 (36″) |
348 |
522 |
626 |
696 |
835 |
939 |
1,044 |
1,252 |
1,322 |
1,670 |
2,087 |
| 1015 (40″) |
314 |
470 |
564 |
627 |
753 |
847 |
941 |
1,129 |
1,192 |
1,505 |
1,882 |
| 1065 (42″) |
299 |
448 |
538 |
598 |
717 |
807 |
896 |
1,076 |
1,136 |
1,434 |
1,793 |
| 1250 (48″) |
255 |
382 |
458 |
509 |
611 |
688 |
767 |
917 |
968 |
1,222 |
1,528 |
| 1500 (60″) |
212 |
318 |
382 |
424 |
509 |
573 |
637 |
764 |
806 |
1,019
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1,273 |
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