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Saws Presses Plastics Machinery        Barrier Guards Presses >> - Mechanical Full Revolution Part Revolution - Hydraulic - Pneumatic - Hydra-mechanical - Mechanical-Friction Clutch - Powered Press Brakes - Definitions Barrier Guards are appropriate safeguards for full revolution and part revolution mechanical power presses. They are designed to keep the operator's hands and arms from entering the "danger zone" as prescribed by the particular machine. Barrier guards are usually the first point-of-operation safeguard considered for machines.   Barrier Guard Regulations Barrier guards on power presses must prevent the entry of hands or fingers into the point of operation by reaching through, over, under or around the guard. [1910.217(c)(2)(i)(a)] The barrier guards must conform to maximum permissible openings tables. [1910.217(c)(2)(i)(b)] The barrier guard itself must not create pinch points between the guard and moving machine parts. [1910.217(c)(2)(i)(c)] The guard must not be easily removable. [1910.217(c)(2)(i)(d)] Fixed barrier guard Click on image to view animation   The guard must not interfere with machine inspection. [1910.217(c)(2)(i)(e)] The barrier guard must offer maximum visibility of the point of operation consistent with the other requirements. [1910.217(c)(2)(i)(f)]     Barrier Guard Types Die enclosure guard must be attached to the die shoe or stripper in a fixed position. [1910.217(c)(2)(ii)] Fixed barrier guard  must be attached securely to the frame of the press or to the bolster plate. [1910.217(c)(2)(iii)] Interlocked press barrier guard  must be attached to the press frame or bolster and be interlocked with the press clutch so the clutch can not be activated unless the guard itself, or the hinged or moveable sections of the guard conform to listed requirements. [1910.217(c)(2)(iv)] The hinged or movable sections of an interlocked press barrier guard must not be used for manual feeding. [1910.217(c)(2)(v)] The guard must prevent opening of the interlocked section and reaching into the point of operation prior to die closure or before the slide stops.  [1910.217(c)(2)(v)] Adjustable barrier guard must be securely attached to the press bed, bolster plate, or die shoe, and shall be adjusted and operated in conformity with Table O-10. [1910.217(c)(2)(vi)]     Saws | Presses | Plastics Machinery eTool Home | Additional References | User Guide | Credits

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