Please kindly note that some salesman is newbie and they do not know more knowledge,meanwhile,they want to sell a press brake very quick.so,their idea maybe confuse you. for example,for 8 mm x 3200 mm sheet metal,they would tell you 160 tons press brake is enough, actually,160 tons only can bend 8 mm when the V width is very big.according to our test,only 200 tons machine can do this thickness very well.Most importantly,after  a long terms usage,the pressure will lower due to all kinds of reason.under this situation, 160 tons must not work for 8 mm x 3200 mm metal.Finally,remember our words,bigger press brake would be easy to finish your work too.