Paper Sack Production

Valve Bag Bottomer Machine

Multi-wall paper bag bottoming machine for valve bags and open-mouth bags used in the construction, chemical and food industries

  • Max. speed 300 bags/min
  • Bottom width 90-250mm
  • Bag width 300-720mm
  • Bag length 350-1650mm

We focused on reducing customer complaints during the final use of valve bags in the design of our valve bag bottomer machine. Through innovative design, stable operation of the main conveyor belt is ensured, with precision control within 1mm. This precision extends to the vertical cutter, where cutting errors are kept within 1mm. The world-first online adjustable vertical cutter allows for easy adjustments without stopping the machine. These innovations provide strong protection against dust emissions during the bag filling process, ensuring proper sealing and preventing powder leakage.

The valve bag bottomer machine also handles small-batch, multi-variety paper bag production efficiently. Changing bag specifications is quick and simple, with one-click adjustments, eliminating the need for gear replacements.

  • Valve Bag Bottomer Machine
  • Valve Bag Bottomer Machine
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  • Specifications
  • Machine Construction
  • Features
  • Valve Bag Bottomer Machine
  • Valve Bag Bottomer Machine
  • Valve Bag Bottomer Machine
  • Valve Bag Bottomer Machine

The valve bag bottomer machine is ideal for packaging a variety of materials, including:

  • Cement Industry: Packaging for Portland cement, white cement, dry mixed cement, and premixed products
  • Mining Industry: Packaging for calcium carbonate, gypsum, lime, and other powdered and granular materials
  • Chemical and Petrochemical Industry: Packaging for building chemicals, casting powders, polymer granules, fertilizers, and organic fertilizers
  • Food Industry: Packaging for flour, starch, grains, sugar, beans, and other food products
  • Agriculture: Packaging for animal feed, seeds, coal, and other agricultural products

Improve production efficiency with high-performance packaging solutions.
Contact us today to explore how the Valve Bag Bottomer Machine can enhance your packaging process.

Applicable Bag Types

  • Open-Mouth Paper Bag
  • Kraft Paper Valve Bag with Thumb Notch
  • Inner Sleeve Valve Bag
  • Hot-Melt Glue Sealed Paper Valve Bag
  • Ultrasonic Sealed Paper Valve Bag
Specifications
Model YD-2018-18 YD-2818 YD-2825
Max. speed 200 bags/min 300 bags/min 300 bags/min
Bottom width 90-170mm 90-180mm 90-250mm
Bag width 300-600mm 300-600mm 300-720mm
Bag length 410-1300mm 410-1300mm 410-1450mm
Center distance 260-1000mm 200-1000mm 200-1350mm
First valve sheet length (optional) 90-270mm 90-270mm 90-270mm
Second valve sheet length (optional) 90-270mm 90-270mm 90-270mm
Weight 45T 50T 60T
Machine Construction
  • Machine Construction
  • Machine Construction
  • 1. Feeding
  • 2. Tube Aligning
  • 3. Creasing & Bottom Opening
  • 4. First Valve Unit
  • 5. Second Valve Unit
  • 6. Internal Patch Inserting
  • 7. Bottom Pasting
  • 8. Bottom Forming
  • 9. Bottom Reinforcing Patch Inserting
  • 10. Pressing
  • 11. Counting & Stacking

The valve bag bottomer machine is mainly composed of thirteen parts, which are:

Rotary Feeder
Rotary Feeder
Rotary Feeder
Tube Aligning Unit
Tube Aligning Unit
Tube Aligning Unit Ejecting mis-aligned paper bag tubes
Diagonal Creasing/Bottom Center
Diagonal Creasing/Bottom Center
Diagonal Creasing/Bottom Center Creasing/Bottom Opening Units
First Valve Unit
First Valve Unit
First Valve Unit Valve length of 90-270mm, with optional functions of thumb notch and additional film layer
Second Valve Unit
Second Valve Unit
Second Valve Unit Valve length of 90-270mm
Internal Reinforcing Patch Inserting Unit
Internal Reinforcing Patch Inserting Unit
Internal Reinforcing Patch Inserting Unit Internal reinforcing patch length of 200-400mm (optional)
Bottom Pasting & Creasing Unit
Bottom Pasting & Creasing Unit
Bottom Pasting & Creasing Unit
Bottom Forming Unit
Bottom Forming Unit
Bottom Patch Inserting Unit
Bottom Patch Inserting Unit
Bottom Patch Inserting Unit Bottom reinforcing patch length 200-450mm (optional)
Bottom Turning Unit
Bottom Turning Unit
Bottom Turning Unit
Pressing Unit (S-Press Belt Conveyor)
Pressing Unit (S-Press Belt Conveyor)
Pressing Unit (S-Press Belt Conveyor) Flattening the valve bags, and ensuring even distribution of glue
Counting & Stacking Unit
Counting & Stacking Unit
Counting & Stacking Unit
Bottom Printing Paper Roll Stand (Optional)
Bottom Printing Paper Roll Stand (Optional)
Features
  • Innovative Design
    The newly designed valve bag bottomer machine uses analog digital control with a tool-free adjustment system. It features 50 servo motors, allowing for one-click switching between different paper bag specifications.
  • European-Sourced Components
    20% of the components are sourced from Europe, featuring a synchronous belt drive design that requires no lubrication, meeting stringent pharmaceutical and food-grade workshop standards.
  • AI Vision Detection
    Our innovative use of AI vision detection ensures quality control. The system automatically rejects bags if they are placed upside down, if the bottom size deviates too much, or if external reinforcement strips are missing, effectively reducing customer complaints.
  • Moisture Control
    To manage moisture content in paper bags, we continuously improve the equipment. The valve bag bottomer machine now uses chemical adhesives, enabling faster drying of the bags and preventing issues like yellowing and mold.
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