06-06-2015, 07:35 PM
Dave
A quick calculation on your press frame.
The channel you listed in the Dumpster Dive was 5x1.75 which SHOULD be 6.7 pound per foot channel.
With the load in the middle of two 25 inch long channels as you've drawn it would carry 62,000 pounds before it permanently deformed.
With the 10 ton load you listed they would elastically bend 0.016 inches in the middle.
The vertical channels are 1.97 inches square area, so each one would carry 71,432 pounds tension, before they yielded. BUT that would have to be reduced by the metal removed where you drill for the pins. They should be safe.
Hope that helps.
A quick calculation on your press frame.
The channel you listed in the Dumpster Dive was 5x1.75 which SHOULD be 6.7 pound per foot channel.
With the load in the middle of two 25 inch long channels as you've drawn it would carry 62,000 pounds before it permanently deformed.
With the 10 ton load you listed they would elastically bend 0.016 inches in the middle.
The vertical channels are 1.97 inches square area, so each one would carry 71,432 pounds tension, before they yielded. BUT that would have to be reduced by the metal removed where you drill for the pins. They should be safe.
Hope that helps.
Free advice is worth exactly what you payed for it.
Greg
Greg