§ 45.83. Speed of circular saws.

 The following table sets forth the recommended and maximum speed in revolutions per minute for various sizes of circular saws working in soft wood. The maximum allowable speed, given in the third column of the table, shall not be exceeded, except in the case of saws, directly coupled to motors, which have been properly tensioned by the manufacturer to operate safely at a higher speed. The saws shall be marked by the manufacturer with the maximum revolutions per minute for which they are tensioned.

	Revolutions Per Minute
Diameter of Saw (in inches)	Recommended for Soft Wood	Maximum Speed
8	4500	5400
10	3600	4320
12	3000	3600
14	2570	3085
16	2250	2700
18	2000	2400
20	1800	2160
22	1635	1965
24	1500	1800
26	1385	1660
28	1285	1540
30	1200	1440
32	1125	1350
34	1060	1270
36	1000	1200
40	900	1080
44	820	980
48	750	900
54	665	800
60	600	720

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