... time, can change the paper roll without stop the machine. The tighten, loosen, up and down, move for center, left and right ... moving all use electrical control. 2) Effective working width: 1600mm, 1800mm,2000mm, 2200.3) Max. raw paper ... the rail is 4500mm.3) Each roll stand has two paper roll sending rails, two paper roll up dolly, it can load the ...