Automatic 4-Head Linear Weigher VFFS Packaging Machine | Collar Type Back-Seal Granule Packing System
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This automatic 4-head linear weigher packaging machine integrates a four-head weighing system with a collar-type vertical form fill seal (VFFS) machine for high-speed and accurate granule packaging. The four weighing hoppers operate alternately to improve efficiency and ensure continuous feeding. Equipped with a collar-type film forming system, the machine is specifically designed for back-seal bag packaging. It is ideal for quantitative packaging of granular materials requiring high weighing precision, stable operation, and attractive packaging appearance.
Machine Overview and Functional Description
This automatic 4-head linear weigher VFFS packaging machine is engineered for precise and efficient packaging of granular materials. The system consists of a four-head linear weigher and a KY-520 collar-type vertical form fill seal (VFFS) packaging machine, combining intelligent weighing technology with stable bag forming performance.
Four-Head Linear Weigher System
The four weighing heads operate alternately, significantly improving packaging speed while maintaining high weighing accuracy. Equipped with high-precision digital load cells, the system enables fast and accurate quantitative measurement of granular materials.
The machine adopts a three-stage vibration feeding system, allowing stable product flow and improved weighing precision for materials with different particle sizes and flow characteristics. The weighing hoppers are detachable for convenient cleaning and maintenance.
All product-contact components are manufactured from premium stainless steel, ensuring corrosion resistance, dust prevention, hygiene compliance, and easy cleaning. The intelligent microcomputer control system offers stable performance, advanced technology, and user-friendly operation.
Collar Type VFFS Packaging Machine
The packaging section adopts a automatic vertical form fill seal machine with a collar-type bag former, specifically designed for back-seal pouch packaging.
The imported PLC control system and large touchscreen interface provide convenient operation and excellent machine stability. The servo film pulling system ensures precise film positioning, consistent bag length, and reliable sealing quality.
When integrated with the weighing device, the system automatically completes feeding, weighing, bag forming, filling, date coding, gas flushing (optional), counting, sealing, and finished product discharge in one continuous automated process.
This machine offers low operating costs, high productivity, and reliable long-term performance for granular product packaging.
Application Areas and Suitable Materials
Agriculture Industry: Seeds,Fertilizers,Pesticides,Veterinary medicine granules,Premixes,Feed additives,etc
Food Industry: Rice,White sugar,Salt,MSG,Chicken essence seasoning,Snack foods,Nuts,Granular condiments,etc
Chemical Industry: Laundry detergent powder,Granular additives,Industrial granules,Chemical particles,etc
Hardware Industry: Small hardware components,Screws,Fasteners,Industrial spare parts,etc
Technical Specifications
| Fully automatic four-hopper weighing granule packaging machine | |
|---|---|
| Model | Four-head linear weigher |
| Packaging specifications | 20–1000 g |
| Packaging speed | 5–60 bags/minute (depending on material density and specifications) |
| Bag Dimensions | Length: 80–350 (mm) Width: 80–250 (mm) |
| Weighing Range | Max 4000 ml |
| Film Feeding Method | Dual-belt film feeding |
| Maximum Film Width | 520 (mm) |
| Film Roll Thickness | 0.04–0.09 (mm) |
| Packaging accuracy | ±0.5% |
| Air consumption | 0.8 MPa, 0.5 m³/min |
| Total power | 2.2 kW, 220 V, 50 Hz |
| Total weight | 450 kg |
| Dimensions | Length (L) 1520 × Width (W) 1120 × Height (H) 2100 mm |
Structural Design and Working Principle
1. Four-Head Linear Weigher System
The four weighing hoppers operate alternately to improve packaging efficiency and maintain stable product feeding. High-precision digital sensors combined with three-stage vibration feeding ensure accurate weighing performance for various granular materials.
2. Servo Film Pulling Mechanism
The servo-driven film pulling system provides stable and precise film transportation. It ensures accurate bag length positioning, smooth operation, and improved packaging consistency while minimizing film waste.
3. Collar-Type Film Forming & Bag Making
The collar-type bag former is specifically designed for back-seal pouch packaging. It delivers smooth film shaping, stable bag formation, and strong sealing performance, ensuring attractive and professional package appearance.
4. Reserved Dust Collection Port
The machine is designed with a reserved dust collection interface, allowing convenient connection to external dust removal systems. This feature helps maintain a cleaner working environment, especially when packaging dusty granular materials.
FAQs
Q1: What types of materials can this machine package?
This machine is suitable for granular and free-flowing materials such as rice, sugar, salt, seeds, fertilizers, snack foods, MSG, chicken seasoning, additives, detergents, and small hardware parts.
Q2: What type of bags can this machine make?
The collar-type VFFS system is designed specifically for back-seal bags (pillow bags) and does not support three-side or four-side seal packaging.
Q3: How does the four-head weigher improve efficiency?
The four weighing hoppers work alternately, enabling continuous feeding and faster weighing cycles while maintaining high measurement accuracy.
Q4: Is the machine easy to clean?
Yes. The weighing hoppers are detachable, and all material-contact parts are made of stainless steel, making cleaning and maintenance quick and convenient.
Q5: Can the machine integrate additional functions?
Yes. Optional configurations such as date coding, nitrogen flushing, dust collection systems, finished product conveyors, and metal detectors can be added according to production requirements.
Compliance and Certification Standards
At HONGDI Machine, we prioritize operational safety, electrical stability, and rigorous hygiene across all our custom industrial machinery. As a verified SGS-audited manufacturer, our equipment undergoes strict testing to meet and exceed global manufacturing regulations.
As demonstrated in the certification documents, our core product categories hold official CE Certifications, fully complying with the strict European Machinery Directives and Electromagnetic Compatibility (EMC) standards.
Key safety and quality guarantees include:
Certified Safe Operation: Advanced electrical and mechanical engineering that protects your facility’s personnel and ensures uninterrupted daily workflows.
Sanitary Stainless Steel Construction: Premium food-grade stainless steel contact parts designed for simplified washdowns, preventing cross-contamination and meeting strict food safety compliances.
Global Export Readiness: Dependable, customized equipment built to perform seamlessly in diverse international manufacturing environments.
Whether you are integrating a complete automated production line or a standalone unit, our CE-certified systems guarantee stable, continuous operation while protecting your product’s integrity.
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