The following solution can finish the whole production processes of expansion files.

• PP raw materials are made into PP sheets by plastic sheet extrusion line;
• PP sheets are pressed by a die cutting and creasing machine and cut into expansion file covers which meets your size requirements;
• The cover line is made more uniform by the heat pressing of a file folder creasing machine.

• PP raw materials are made into PP sheets by plastic sheet extrusion line;
• PP sheets are pressed by die cutting and creasing machine and cut into expansion file inner pages which meets your size requirements;
• The inner pages are folded by expanding file edge folding machine;
• Well cut inner pages and edge pages are put into corresponding dies and then inner pages will be welded to edge pages to form expansion file inner part by the two side expanding file forming machine.

Expansion file products
Inner pages and cover are welded by expanding file divider and cover assembly machine to form expansion file products finally.