Current through Register Vol. 54, No. 50, December 14, 2024
Section 45.121 - Band mills(a) All band saw wheels shall have a minimum rim thickness of 5/8 inch, except the portion within 1 inch from the front edge.(b) Unless the provisions of subsections (c)-(e) are met, no band mill shall be run at a speed in excess of that indicated in the following table: | Size of Mill (in feet) | Speed (in feet per minute) |
| 8 | 10,000 |
| 6 | 9,000 |
| Under 6 | 6,000 |
(c) Band mills shall be designed and constructed with a factor of safety of ten for the intended speed.(d) Band mills shall be cast so as to be as free as possible from shrinkage strain and shall be balanced statically, as well as dynamically when running at rated speed.(e) The intended maximum speed of band mills shall be stamped in figures not less than 1/4 inch in height on a brass plate securely fastened to the frame of the machine so as to be easily legible from the stand of the sawyer.