- Heating plate is surface grinded and chrome-plated.
- Dense weight rollers be used in heating section, 3 stage adjustable pressure for weight rollers are controlled by pneumatic system according to thickness of paperboard (optional).
- Tension control for upper cotton belt by pneumatic cylinder. Automatic or manual correcting device are optional.
- Drive section adopt gearbox, driven by electromagnetic speed control motor or frequency conversion motor.
- Drive rollers be covered endure abrasion rubber and cutting "V" from teeth, with drum and put out paperboard stable.