... the same time, can change the paper roll without stop the machine. The tighten, loosen, up and down, move for center, left and ... of single arm: 1500kg. 6) Each roll sand has two paper roll sending rails, two paper roll up dolly. Rail is made from the ... the rail is 4500mm.3) Each roll stand has two paper roll sending rails, two paper roll up dolly, it can load the paper ...