Michigan Administrative Code
Department - Labor and Economic Opportunity
MIOSHA
General Industry and Construction Safety and Occupational Health Standards
General Industry Safety Standards
Part 44 - FOUNDRIES
Section R. 408.14463 - Sand mixers
Universal Citation: MI Admin Code R. 408.14463
Current through Vol. 24-16, September 15, 2024
Rule 4463.
(1) A bowl or drum-type sand mixer shall have a grating which is made of 3/8-inch rod or a material of equal strength with openings as prescribed in table 1 and which covers the opening and is interlocked to the mixer. When the cover is raised, the motor shall not start again until the cover is closed and the starter button activated.
(2) Table 1 reads as follows:
TABLE 1
| Distance of Opening From Point of Operation Hazard (inches) | Maximum Width Opening (inches) |
| 1/2 to 1 1/2 ................ | 1/4 |
| More than 1 1/2 to 2 1/2 .............. | 3/8 |
| More than 2 1/2 to 3 1/2 .............. | 1/2 |
| More than 3 1/2 to 5 1/2 .............. | 5/8 |
| More than 5 1/2 to 6 1/2 .............. | 3/4 |
| More than 6 1/2 to 7 1/2 .............. | 7/8 |
| More than 7 1/2 to 12 1/2 ............. | 1 1/4 |
| More than 12 1/2 to 15 1/2 ............ | 1 1/2 |
| More than 15 1/2 to 17 1/2 ............ | 1 7/8 |
| More than 17 1/2 to 31 1/2 ............ | 2 1/8 |
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