it is used for folding part of hard cover (hard bookcover, box cover, calenders, files cover etc..) forming.

After aligned with body paper, the upper glue paper is fed into the flanging machine through a conveying belt. The flanging process is performed in three steps: left/right side, front/back side, and the operation is finished at a time automatically.

First process: Feed the glue paper and body paper into the flanging belt, foldleftand right side, then the paper is integrated closely via the drum of the firstlayer. Second process: After operated by the front forward gas baffler, the paper reciprocatesto the drum of the second layer to perform flanging of the backside. Third process: After operated by the back forward gas baffler, the paper reciprocatesto the drum of the third layer to perform flanging of the front side. The paper is fed into the collection table for four-side flanging machine.

ZB-500Four Sides Folding Machine