1. Wall board material is casting iron, thickness 40mm, will not be out of shape. Spot facing work adopt high precision display processing, center distance of holes can between 0.01mm.

2. Helical tooth gears on main drive which adopted 45# steel, treated with gear shaving with high precision facility, closed spray lubrication system, put oil before run the machine,can lower down the noise, decrease the abrasion of gears, and prolong the lifetime of gears.

3. Adopt electrical counter,can control the paper quantity exactly. 

4. Adjust 4 slotting knives by manual together to change the slotting depth together,finish the carton height adjustment in one time together.

5. Manual transverse moving of 4 slotting knives separately.

6. Knives and creasers left-right moving together.