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| Machine Safeguarding Applications & Solutions |
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What is the required guarding on a manual lathe? What types of guards are available for manual lathe that are OSHA compliant?
Omron STI Answer: This is an interesting question, because lathes are one of those machines that fall under different OSHA safeguarding clauses depending on the application. If the lathe is being used for woodworking, then it must be guarded under 1910.213; however, if it is used for turning metal then it comes under the general safeguarding clause in 1910.212.
The requirements for guarding a woodworking lathe are defined in 1910.213(o): "(1)...shall have all cutting heads covered by a metal guard. If such a guard is constructed of sheet metal, the material used shall be not less than one-sixteenth inch in thickness; and if cast iron is used, it shall not be less than three-sixteenths inch in thickness. (2) Cutting heads on wood-turning lathes, whether rotating or not, shall be covered as completely as possible by hoods or shields. (3)... shall be equipped with hoods enclosing the cutter blades completely except at the contact points while the stock is being cut. (4) Lathes used for turning long pieces of wood stock held only between the two centers shall be equipped with long curved guards extending over the tops of the lathes in order to prevent the work pieces from being thrown out of the machines if they should become loose"
Lathes not used for woodworking fall under the general safeguarding clause, which requires that one or more methods of machine guarding shall be provided to protect the operator and other employees in the machine area from hazards such as those created by point of operation, ingoing nip points, rotating parts, flying chips and sparks. (1910.212(a)(1). This clause does not provide any specific guidance as to how this guarding is to be accomplished. The best way to ensure compliance is by using a consensus standard such as those published by ANSI. The ANSI standard B11.6-2001 (R2007), Safety Requirements for Manual Turning Machines with or without Manual Control provides all the detailed information required for guarding a lathe properly. We strongly recommend purchasing a copy and following its guidelines. |
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