Semi Automatic 4-Bucket Weigher Packing Machine for Granules, Seeds, Rice & Fertilizer
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This semi automatic four hopper weighing packing machine is designed for fast and accurate quantitative packaging of granular materials. The system adopts four independent weighing hoppers operating alternately, significantly improving packing speed while maintaining weighing accuracy. Equipped with high-precision digital load cells, a three-level vibration feeding system, and intelligent PLC control, the machine delivers stable and reliable performance. It is widely used for packaging granules, seeds, rice, fertilizers, additives, detergents, snacks, and small hardware parts.
Machine Overview and Functional Description
The semi automatic four hopper weighing packing machine is a highly efficient quantitative weighing solution designed for granular, free-flowing, and irregular materials. The system consists of a four-head weighing unit, vibration feeding system, PLC control system, weighing hopper assembly, discharge platform, and stainless steel frame, ensuring reliable operation and easy integration into existing packaging lines.
The core component is the four hopper weighing system, where four independent weighing hoppers operate alternately to minimize waiting time and maximize packaging efficiency. Compared with conventional single-hopper systems, the alternating discharge structure greatly increases packing speed while maintaining excellent weighing consistency.
The machine adopts high-precision digital load cells, enabling rapid and accurate measurement for small to medium packaging weights. A three-stage vibration feeding system provides precise material feeding control, improving weighing accuracy and reducing material waste.
Designed for flexibility, the machine features strong compatibility with bagging equipment, making it easy to integrate with sewing machines, heat sealers, conveyors, or semi-automatic packaging lines.
All material-contact components are manufactured from high-quality stainless steel, offering corrosion resistance, dust prevention, and convenient cleaning. The detachable weighing hoppers simplify maintenance and sanitation, especially for food and chemical applications.
The integrated microcomputer PLC control system provides intuitive operation, stable performance, and reliable parameter management. Operators can easily adjust feeding speed, target weight, and discharge settings according to different product characteristics.
Its compact structure, high weighing precision, and continuous operation make it an ideal solution for industries requiring efficient and reliable granule packaging.
Application Areas and Suitable Materials
Agriculture Industry: Seeds, rice seeds, corn seeds, wheat seeds, fertilizers, pesticides, veterinary medicine granules, premixes, feed additives, etc
Food Industry: Rice, sugar, salt, MSG, chicken seasoning, snack foods, nuts, grains, beans, coffee beans, pet treats, etc
Chemical Industry: Detergent powder granules, washing powder, chemical additives, plastic granules, desiccants, industrial particles, etc
Feed & Animal Nutrition Industry: Feed granules, premixes, nutritional supplements, mineral additives, animal nutrition powders and granules, etc
Hardware Industry: Small hardware parts, screws, bolts, fasteners, connectors, and industrial accessories, etc
Technical Specifications
| Semi-automatic four-hopper weighing and packaging machine | |
|---|---|
| Packaging capacity | 20–2,500 g/bag |
| Packaging accuracy | ±0.5% (depending on the material) |
| Packaging Speed | 900–2,500 bags/hour |
| Power Supply | 220V 50Hz 0.7 kW |
| Machine Weight: | 220 kg |
| Machine Dimensions(L × W × H) | 1,300 × 900 × 2,500 mm |
Structural Design and Working Principle
- Four Hopper Weighing System
The four independent weighing hoppers operate alternately to reduce waiting time and improve packaging speed. Combined with high-precision digital load cells, the system ensures fast, stable, and accurate quantitative weighing performance.
- PLC Intelligent Control System
Equipped with an advanced PLC touchscreen interface, the machine enables easy parameter adjustment, weighing control, feeding speed management, and quick product switching for different packaging requirements.
- Adjustable Discharge Platform
The adjustable discharge platform supports bags of different sizes and improves operational flexibility. Its ergonomic design enhances filling stability and reduces material spillage during packaging.
- Visible Material Hopper
The large-capacity visible hopper allows operators to easily monitor material levels during operation. The enclosed structure minimizes dust leakage while supporting continuous and stable material feeding.
FAQs
Q1: What materials can this machine package?
This machine is suitable for granular and free-flowing materials, including rice, seeds, fertilizers, detergents, feed granules, sugar, salt, additives, snacks, and small hardware parts.
Q2: How does the four hopper weighing system improve efficiency?
The four weighing hoppers work alternately, reducing waiting time between weighing cycles and significantly increasing packaging speed compared to traditional single-hopper machines.
Q3: Is the machine easy to clean?
Yes. The weighing hoppers can be directly removed, allowing quick cleaning and maintenance. Stainless steel contact parts also improve hygiene and corrosion resistance.
Q4: Can the machine work with other packaging equipment?
Absolutely. The machine features strong compatibility and can easily connect with sewing machines, sealing machines, conveyors, and other semi-automatic packaging equipment.
Q5: Is the weighing accuracy adjustable?
Yes. The machine uses high-precision digital load cells and a three-level vibration feeding system, allowing operators to optimize weighing accuracy according to different material characteristics and package weights.
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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