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<p>[QUOTE=&quot;usmc60, post: 2919173, member: 76739&quot;]Larry, here&#039;s part of the discussion I had with Stan Moffat. I think he knows a lot more about presses than both you and I do.</p><p>Since the mint is real tight about a lot of their procedures. I think this little conversation will interest you even though it&#039;s about doubling.</p><p><br /></p><p>I believe explains the tonnage used in quarter production. And another fact that I was unaware of. The tonnage capability of the mints presses.</p><p>That&#039;s why they have these guidelines set up at every press no matter which press it is.</p><p>Stan Moffat&nbsp; &nbsp; Ejection doubling I like to classify under the umbrella of machine doubling. If the ecection was starting while the coin was still under coining pressure it would not tske long for the press to break. At the most an ejector might have a capacity of 10 tons. Since it takes somewhere around 75-ish tons to strike a quarter sized coin the force of coining would quickly breat yhe ejector oins levers, linkages, drive chain, or what ever ejector devices are in the type of press that is being used. I jush had at a consulting engagement last week a 600T press blew up the ejector pin that pushes the table die up out of the collar because there was a control fault that allowed the press to cycle without the ejector in the full retracted position. 1 cycle was all it took. So the ejector pushing off early is probably not the cause of ejection doubling, at least not for long before the press breaks[/QUOTE]</p><p><br /></p>

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