Thick cardboard making machine produce super grade duplex board paper
The thick cardboard making machine is a high configuration paper making machine. All parts in this machine are from framous brand and be manufactured in high precision. Such as:
|Before welding, sheet and tube should rectify straight.
|Before fine machining, it must mechanical vibration treatment to eliminate stress.
2. Casting parts
|Big jumbo press roll, dryer cylinder: after casting, thermal insulation treatment to eliminate stress.
|Other casting: after casting, annealing heat treatment to eliminate the stress.
3. Spindle nose of rolls
|Wire section guide roll, press section guide roll, spreading roll, dryer section guide roll, paper leading roll: Quenching and tempering treatment before finishing.
|Bearing taper surface of all the bearing and roller must precision fit, the contact surface more than 80%.
The heaviest part in this thick cardboard making machine is the press roll, about 34tons per roll.