why does more people choose guillotine style instead of swing beam shearing machine? because guillotine shears can overload to cut metal in especial time. for example,you have a 16 x 2500 guillotine shearing machine in hand, you can use it to cut 18 x 2500 metal, however,you must not use swing beam 16 x 2500 machine to cut 18 mm metal.Do not take lucky idea to try anything if you do not know how to operate this machine.