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SBH330/450

Roll Fed Square Bottom Paper Bag Machine

The SBH series roll fed square bottom paper bag machine is designed to manufacture square bottom paper bags from paper roll in blank or printed designs. Side gluing, tube forming, tube cutting, bottom creasing, bottom gluing, bottom forming and final product out feed can all be completed within a single operation pass by this machine. It is ideal equipment for making paper bags for food, shopping bag and other commonly used paper bags. The machine use German machinery manufacturing technology and ideas, including a high speed movement of the central control system (CPU) control. The bag length can be adjusted by servo system, allowing the machine to create bags in various specifications. Different models (SBH330 and SBH450) can also have a twisted or flat handle unit added to the production line.

  • Servo Adjustable Former,
    Adjust The Face Width &
    Gusset Size Automatically.
  • Mechanical Drive
  • Bottom Forming Drum With Vacuum Assist

1. The roll fed square bottom paper bag machine is equipped with a Japanese Mitsubishi servo system and SICK photocell for correction, so that users can accurate track printed material, and minimize adjustment and pre-set times.
2. It is equipped with a Mitsubishi electric control system and Mitsubishi motion controller (CPU). This achieves an integration of an optical fiber in order to achieve a high speed and high precision, motion control and production flow test. With a touch screen display, the operation functions are clear, and feature a great human to machine interface.  
3. Equipped with a tension system and automatic WEB correction system, this paper bag production machine can reduce waste and improve efficiency.
4. With a servo motor adjustable forming plate, there is no need for individual formers. This also allows for a faster change between different bag sizes.
5. The vacuum assisted main drum allows for better control during bag bottom formation.

Bag Schematic Diagram

Technical Info SBH150 SBH290 SBH330 SBH330B SBH450 SBH450B
Paper Roll Width (mm) 295-640 395-910 420-1050 465-1050 618-1310 618-1310
Paper Roll Dia. (mm) ≤1200 ≤1200 ≤1500 ≤1500 ≤1500 ≤1500
Paper Roll Core Dia. (mm) Φ76 Φ76 Φ76 Φ76 Φ76 Φ76
Paper Thickness (gsm) 40-135 50-150 50-160 50-160 70-160 70-160
Tube Cut Off Length (mm) 191-385 280-530 280-530 280-530 368-762 368-762
Bag Face Width (mm) 80-200 120-290 125-330 150-330 200-450 200-450
Bag Bottom Size (mm) 50-100 70-150 70-150 70-180 90-180 90-205
Max. Speed (bags/min) 250 220 230 220 160 160
Total Power (kW) 8.75 10.25 14.5 14.5 18.8 18.8
Machine Weight (kg) about 5600 about 8000 about 8500 about 9000 about 11000 about 11000
Machine Size ((L×W×H)m) 8.6×2.6×1.96 11.5×3.1×1.96 11.5×3.1×1.96 11.5×3.1×1.96 13×3.9×2 13×3.9×2
Three Types Bottom Seal in in in in in in
Servo Lip Cut Device in in in in no no
Serrated & Straight Cut Device in in in in in in
M= Servo Motorized Plate Device no no w/o w/o w/o w/o
Bottom Forming Drum With Vacuum Assist no no yes yes yes yes
Options unit SBH150 SBH290 SBH330 SBH330B SBH450 SBH450B
DC01/DC02 Servo Window Cutting Unit yes yes yes yes yes yes
TM01/TM02 Servo Film Patching&Laminating Unit yes yes yes yes yes yes
PAV02 Die Cut Handle Patch Application Unit yes yes yes yes yes yes
DL01/DL02/DL03 Two Ply Unit yes yes yes yes yes yes
1-4 Colors Flexo Printing Unit yes yes yes yes yes yes
Twisted Handle Unit no no yes yes yes yes
Flat Handle Unit no no yes yes yes yes
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