2. Width for c-folding material is sap sheet width+(30-50mm).

3. Servo control festooning machine's hopper swing left and right, make the swinging arm more accurate, speed match more precision.

4. Servo control swing arm hopper fore and aft movement, cross feed more steady and pause more precisely.

5. Servo control rise and fall, make swing arm hopper and material festooning with uniform speed. The position of the swing arm is consistent with the position of the material.