AUGER FILLER+MULTI LANE BACK SIDE SEALING BAG PACKING MACHINE

Max film width 280mm,support 4-6lanes,bag size range L:50-180mm; W:17-30mm, max speed 35bags/lane/min

Bag sealing way adopt 1.Straight cutting; 2.Zig zag cutting; 3.Round cutting

Also could widely used as sugar stick multi lane packing machine,coffee multi lane packing machine,shampoo multi lane packing machine combine with different weighing system

An Auger Filler + Multi Lane Back Side Sealing Bag Packing Machine is a high-efficiency, fully integrated automated packaging system that combines a precision auger metering unit with a multi-lane back side sealing bag forming module. This machine is engineered specifically for packaging fine, non-free-flowing powders (and some small granular materials) into narrow, single-serve back-sealed sachets, with multiple lanes operating simultaneously to maximize production output. It is widely used in the food, pharmaceutical, cosmetic, and nutraceutical industries for portion-controlled products like coffee powder, milk powder, protein powder, medicinal powders, and facial mask powders.

Core Working Principle & Operational Workflow

The machine’s design centers on synchronized multi-lane operation and auger-driven precise filling, with a continuous workflow optimized for powder materials:

1. Multi-Lane Film Unwinding & SlittingA single roll of wide packaging film (typically high-barrier composite films such as PET/AL/PE, BOPP/PE, or aluminum foil to protect powders from moisture and oxidation) is fed into the film handling station. Built-in slitting blades cut the wide film into multiple equal-width narrow strips—each strip corresponds to one packaging lane (common lane counts range from 2 to 12, depending on machine model and sachet size). Tension control rollers ensure each film strip remains flat, taut, and aligned to avoid misfeeding or sealing defects.
2. Back Side Sealing & Bag FormingEach narrow film strip is folded longitudinally along its centerline, bringing the two edges together at the back. Heat-sealing bars press the overlapping back edges to form a continuous back seal—this creates a tube-shaped structure for each lane, with the front side remaining open for filling. The width of the back seal is adjustable via PLC parameters to match different sachet dimensions, ensuring leakproof performance for fine powders.
3. Auger Filler-Driven Precision FillingA shared hopper supplies material to multiple independent auger filling heads (one per lane), the core of the system for handling non-free-flowing powders:
   • Material Conveying & Metering: The auger (a rotating helical screw) rotates at a preset speed to convey powder from the hopper to the filling nozzle. The auger’s rotational speed and run time are precisely controlled by a servo motor, which dictates the volume of powder dispensed—critical for ensuring consistent portioning across all lanes.
   • Anti-Bridging & Anti-Dust Design: The hopper is equipped with a vibratory agitator to prevent powder bridging (clumping that blocks material flow). Filling nozzles are designed with a retractable structure that extends into the film tube during filling, minimizing powder dusting and avoiding contamination of the sealing edges.
   • Lane Synchronization: The PLC system ensures all auger filling heads operate in perfect sync, so each lane receives the exact same amount of powder at the same time, maintaining uniform sachet weight across the entire production line.
4. Horizontal Sealing & Lane CuttingAfter filling, horizontal sealing bars descend to seal the top of the current sachet and the bottom of the next sachet in each lane—these transverse seals divide the continuous film tube into individual portioned sachets. For powder materials prone to air entrapment, some models integrate a vacuum function to remove excess air before sealing, preventing sachet bulging. Next, slitting blades cut the multi-lane sachet web into separate single sachets, completing the packaging process.
5. Discharge & Post-Packaging ProcessingFinished single-serve sachets are discharged onto a conveyor belt, which transports them to downstream processes such as weight inspection, metal detection, batch coding, and case packing.

Key Features & Advantages

1. High-Output Multi-Lane OperationBy running 2–12 lanes simultaneously, the machine delivers exponentially higher production speed than single-lane models—output ranges from 100 to 600 sachets per minute, depending on lane count and sachet size. This makes it ideal for large-scale mass production of portion-controlled powder products.
2. Auger Filler Precision for Non-Free-Flowing PowdersThe auger metering system excels at handling sticky, clumpy, or fine powders that volumetric cup fillers cannot manage effectively. It ensures filling accuracy within ±0.5–1%, critical for products with strict dosage requirements (e.g., pharmaceuticals, nutritional supplements).
3. Leakproof Back Side Sealing DesignThe back-sealed structure creates a clean, narrow seal that eliminates edge leaks, making it perfect for fine powders. The seal is also aesthetically pleasing and easy to tear open, enhancing consumer convenience.
4. Flexible Lane & Sachet AdjustmentOperators can adjust sachet length and width by modifying PLC parameters, without replacing large mechanical parts. Some models support quick lane conversion (e.g., switching from 8 lanes to 4 lanes for larger sachets) to accommodate different product specifications, reducing production downtime.
5. Hygienic & Food-Grade ConstructionAll parts in contact with powder—auger screws, hoppers, filling nozzles, and film guides—are made of 316 stainless steel, compliant with FDA and EU food safety standards. The machine features a closed hopper design to prevent dust contamination, and quick-disassembly components for easy cleaning and sterilization between batches.

Typical Application Scenarios

This integrated machine is a go-to solution for industries requiring high-volume, portion-controlled powder packaging:

• Food Industry: Instant coffee sachets, milk powder portions, cocoa powder, seasoning mixes, flour sachets.
• Pharmaceutical Industry: Medicinal powder sachets, herbal extract powders, dietary supplement powders.
• Cosmetic & Personal Care Industry: Facial mask powder sachets, body scrub powders, hair treatment powders.
• Nutraceutical Industry: Protein powder sachets, collagen powder portions, probiotic powder packs.