Restretch your own frames or start getting paid to restretch other businesses frames. Achieve high tensions and save or make money with these machines. These manual tensioning machines have a final pneumatic lift that presses the frames up into the mesh to get even higher newtons. Cost is only $3500 for a 115cmx150cm table or $6500 for a 150cmx250cm. call me for details.... attached is a data sheet for the machine.