Equipment for Ultra Sonic Sealing of Copper Tube

I'm trying to find a company or companies which manufactures an portable ultra sonic sealer for copper tubing in which the jaws of the sealer are 90 degrees to the body of the unit. We use sealers now in our application in which the jaws are inline with the body of the sealer. We are making changes in our designs and our current sealer can't snip off the copper tube close enough for our new design. I need a sealer in which the jaws are positioned at a right angle; that way, I can reach up the tube far enough to snip and seal the tube correctly. Thank you.