Features: 1) Used to produce multi-wall paper tubes for packing cement 2) Can sew up 2 - 4 layers of roll Kraft paper to form paper tube at a stroke by the way of automatic gluing, forming, length-setting, cut-off and counting 3) New generation of multi-layer Kraft paper bag making machines designed for solving the problem of environmental pollution and meeting requirements of environmental protection 4) Uses 70 - 80g Kraft paper rolls to output paper bags Specifications: 1) Bag making length: 800-1,000mm 2) Width: 400 - 600mm 3) Roll material width: 820 - 1,200mm 4) Bag making speed: 20 - 80 bags/min 5) Total power: 15kW 6) Bag layers: 2 - 6 layers 7) Total weight: 7,000kg