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Machine guards

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LACHANDARA

Mechanical
Mar 29, 2010
12

Hi all,

Just wondering if anyone has made/designed these type of guards described below. I'm loking for the type that remains attached to the guard when removed. Is there a product that can be bought off the shelf to do this, haven't found anything on the net to date, i presume it would be some type of recessed bolt, you put this in the guard and maybe crimp something on to the recess of the bolt, thus holding the bolt to the guard. Presume this is all done somwhere already, must do this with stainless stell parts.
Hope i'm explaining this reasonably well.
Any advice would be greatly appreciated.

Best Regards


L



"The European Machinery Directive requires additional layers of safety. The Machinery Directive requires fastener systems to remain attached to the guards or to the machinery when the guards are removed, and, when possible, that the guards are incapable of remaining in place without their fasteners."

 
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As jboggs has indicated, the term you need to search on is "captive screw".

McMaster.com stocks a fair assortment, including stainless.



Mike Halloran
Pembroke Pines, FL, USA
 
I went through this recently and the vast majority of the options are for smaller panels like electronics. If you need something 1/4" or bigger, the list is very short. We do industrial machinery and needed fasteners with a bit more meat to them.

Southco are certainly good products, and so are Savetix (
Whichever systems you are interested in, keep in mind that different clearances and factors go into ensuring your guards remain easily removable. Get some samples and install them into various examples to learn how they will/won't work as direct retrofits.

David
 
Use a socket head fastener, fill it with solder or epoxy.
 
Depending how big you're going PEM has stuff.

Plus simple captive screws are readily available places like McMaster etc.

Posting guidelines faq731-376 (probably not aimed specifically at you)
What is Engineering anyway: faq1088-1484
 
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