Skip to Main Content

This information is provided free of charge by the Department of Industrial Relations from its web site at These regulations are for the convenience of the user and no representation or warranty is made that the information is current or accurate. See full disclaimer at
Subchapter 7. General Industry Safety Orders
Group 8. Points of Operation and Other Hazardous Parts of Machinery
Article 74. Cotton Gins and Seed Cotton Processing Machines
Return to index
New query

§4647. Screw Conveyors.

All accessible screw conveyors shall be guarded by substantial covers or gratings or with an inverted horizontally slotted guard of the trough type which will prevent personnel from coming into contact with the screw.

NOTE: Such guards may consist of horizontal bars spaced to allow material to be fed into the conveyor and supported by arches which shall be not more than 8 feet apart.

EXCEPTION: Screw conveyors under gin stands shall be considered guarded by location.

NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.


1. Amendment of subsection (b) filed 5-13-77; effective thirtieth day thereafter (Register 77, No. 20).

2. Amendment filed 2-24-86; effective thirtieth day thereafter (Register 86, No. 9).

Go BackGo Back to Article 74 Table of Contents