Automatic Multi-Layer Paper Bag Tube Making Machine
Produce 1–4 layer kraft paper bag tubes at up to 108 m/min in one pass.
Integrated production line transforms kraft paper rolls into finished multi-layer bag tubes without intermediate handling steps. Designed for cement, grain, and chemical packaging facilities requiring consistent high-volume output with minimal operator intervention.
Key Specs
Key Specs
Overview Points
Single-Pass Processing
Flexible Layer Configuration
Servo-Controlled Cutting
Variable Speed Control
Heavy-Duty Unwinding
Reinforced Frame Design
Automated Processing
Standard Power Requirements
Key Features
A PLC programming control system paired with high-precision servo drives (three 2 kW dispensing servos plus a dedicated 2 kW dispensing servo) manages paper feed, glue dispensing, and cut-length positioning. A Japanese-origin closed-control encoder and a US-made Martin dispenser encoder deliver repeatable accuracy, while automatic color-code tracking (Taiwan-sourced) ensures every cut aligns with the printed design — no manual adjustment between runs.
The machine feeds up to four paper webs simultaneously through layering, middle-seam sizing, and bag-mouth dispensing stations, producing a fully bonded multi-layer tube in one uninterrupted pass. This integrated approach eliminates the need for separate laminating equipment and reduces work-in-progress inventory on the factory floor.
The 40 mm 45# steel head plate, 250# channel-steel column structure, and 200# channel-steel intermediate supports are surface-treated with three coats of paint for corrosion resistance. Mechanical parts use 45# steel, A3 steel, and cast iron where appropriate, ensuring dimensional stability over years of high-speed operation.
A 10-inch touchscreen HMI centralizes all parameter settings — bag length, layer count, line speed, and glue timing. Automatic coil-stop, photoelectric induction, and auto-counting functions let a single operator manage the full 14,500 mm production line. Cold cutting extends blade life and eliminates heat-related paper deformation.
Coil widths from 660–1,020 mm are accepted as standard, and the maximum roll diameter can be customized to match your supplier’s output. An optional full-servo-control dispensing system provides speed-synchronous glue application for higher-speed runs, and a guide configuration is available for downstream bottom-pasting integration.
Technical Specifications
The multi-layer bag can-making machine is designed to solve environmental pollution and conform to green environmental protection. It is suitable for 70- 140 grams of kraft paper rolls, and the finished products such as automatic forming and middle seam gluing according to the size required by the customer can be output at one time. It has a wide range of applications and is an ideal equipment for packaging grain, chemical, cement and other products.
This machine is developed after years of pioneering and innovation by the company and absorbing advanced technology at home and abroad. Automatic production line equipment with the combination of machine, electricity andgas
Coil→Passing→Paperpuncture→Layering→Bagmouthdispensing→Middlesizing→Forming→Multi-layertraction→Cutting(fixedlength)→Pullingoff→Photoelectriccounting→Wholebagconveying→Finishedproduct
With man-machine interface adjustment (10-inch touch screen), frequency conversion speed regulation, high-precision servo control system, PLC programming control system, automatic counting, output, etc. The control system is simple and convenient to operate: automatic mechanical stop of the coil; automatic tracking of the color code; automatic gluing; forming; material pulling; photoelectric induction; functions such as arbitrary fixed length without changing gears, cold cutting of cutters, etc.
| No | PartName | Model | Qty |
| 1 | touchscreen | 10tuch | 1 |
| 2 | PLCprogrammablecontroller | 1 | |
| 3 | Maininverter | 7.5KW | 1 |
| 4 | Mainmotor | 7.5KW | 1 |
| 5 | Maindrive | 380V 4KW | 1 |
| 6 | Dispensingservodrive | 380V 2KW | 3 |
| 7 | Dispensingservodrive | 380V 2KW | 1 |
| 8 | Reducer | 3 | |
| 9 | PLCprogrammablecontroller | 1 | |
| 10 | Encoder(closedcontrolinJapan) | 1 | |
| 11 | Dispenserencoder(USAMartin) | 1 | |
| 12 | Color codetracker(Taiwan) | 1 | |
| 13 | Synchronous gear andbelt | 96:24 | 1 |
| 14 | AxialFan | 120FZY2-S 220V |
2 |
| 15 | Button(domesticwell-known brand) |
2 |
| 16 | Two-positionknob(domestic well-knownbrand) |
3 | |
| 17 | Powerindicator(domestic well-knownbrand) |
1 | |
| 18 | Alarm | 1 | |
| 19 | Airswitch 4P | 4P 32A | 1 |
| 20 | Switching power supply | HS35-24 | 1 |
| 21 | IntermediateRelay(Chint) | HH53P/DC24V | 2 |
| 22 | ACcontactor | CJX2-3210 220V | 1 |
| 23 | Emergencystopbutton(domestic well-knownbrand) |
NP4- 112S/ 1 | 1 |
| 24 | Photoelectricswitch | WS-C2G-S | 1 |
| 25 | sensor | DW-AD-621-M12 | 3 |
| 26 | Proximityswitch | LM12-4F-N1 | 3 |
Applications
Cement bag manufacturing — multi-layer kraft paper sack tubes for 25–50 kg cement packaging
Grain and flour packaging — food-grade multi-layer paper bags for agricultural products
Chemical powder packaging — layered paper bag tubes for fertilizer,ite, and mineral powders
Animal feed packaging — durable multi-ply paper sacks for pelletized and powdered feed products
Building materials packaging — paper bag tubes for gypsum, morite, and dry-mix products
General industrial packaging — kraft paper bags for any bulk dry-goods filling line
Video
FAQ
Automatic Multi-Layer Paper Bag Tube Making Machine is widely used in: Cement bag manufacturing — multi-layer kraft paper sack tubes for 25–50 kg cement packaging; Grain and flour packaging — food-grade multi-layer paper bags for agricultural products; Chemical powder packaging — layered paper bag tubes for fertilizer,ite, and mineral powders; Animal feed packaging — durable multi-ply paper sacks for pelletized and powdered feed products.
All NTBOBO machines come with a 1-year warranty from the date of Bill of Lading. Our engineering team provides 24-hour technical support throughout the warranty period.
We accept 30% down payment by T/T (Telegraphic Transfer), with the balance due before shipment. Other payment arrangements can be discussed for long-term partners.
Standard delivery is within 10-35 working days after receiving the down payment, depending on the machine model and customization requirements.
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