The Role of Combination Weighers in Intelligent Packaging Systems
Combination weighers, also known as multihead weighers, are essential in modern packaging automation. With high-precision weighing, intelligent algorithms, and strong adaptability, they improve efficiency, reduce costs, and support industries like food, pharmaceuticals, and chemicals.
What is a Combination Weigher?
A combination weigher, also known as a multihead weigher, is a critical piece of equipment in industrial automation. Using 8 to 32 independent weighing units, it achieves ±0.1g precision through intelligent combination. Replacing traditional volumetric devices, it is now widely applied in the food, pharmaceutical, and chemical industries.
Core Structure and Advantages
Modern combination weighers adopt a three-layer design:
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Upper Layer – Vibratory feeding trays evenly distribute materials.
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Middle Layer – Weighing hoppers dynamically measure product weight.
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Lower Layer – Material collection ensures precise discharge.
With high-precision sensors and integrated circuits, weighing speed exceeds 3 times per second. Unlike traditional platform scales with a 3–5% error rate, the combination weigher keeps errors within 0.3%. For example, a nut manufacturer reduced material loss by 12% and boosted packaging efficiency by 300% after adopting this system.
Five Major Technical Advantages
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Intelligent Algorithm for Speed
Optimized algorithms and dynamic statistical correction enable speeds up to 200 packs per minute—3–4 times faster than traditional equipment. -
Modular Design
Quick assembly/disassembly in just 3 minutes, stainless steel parts, and flexible hopper sizes (1.6L, 2.5L, 3.0L). -
Error Prevention & Stability
Triple-verification system keeps error rates below 0.15% even after 200+ hours of continuous operation. -
Wide Material Adaptability
Capable of handling powders (≥0.5mm) to frozen products (250g), ensuring smooth processing of irregular shapes. -
Energy Efficiency
Intelligent sleep mode reduces standby energy consumption by 70%, lowering operating costs.
Industry Applications
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Food Processing: Puffed snacks, nuts, grains, tea, coffee beans, pasta, and Chinese medicine.
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Pharmaceutical & Healthcare: Ensures accurate dosing and safe packaging.
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Daily Chemical & Electronics: Weighing and packing plastics, hardware, electronic parts, and components.
When integrated with a metal detector, defect interception rates exceed 98%, further ensuring product safety.
Purchasing and Maintenance Guide
When selecting a combination weigher, evaluate accuracy, speed, and certifications (CE, OIML). Leading brands such as Guangdong Kenwei Intellectualized Machinery Co., Ltd. are recognized for their precision and reliability, especially in the snack, fresh produce, meat, and pickled food industries.
For long-term performance, implement a three-tier maintenance system to reduce downtime. Additionally, consider warranty and technical support. For instance, Kenwei offers up to 2 years of extended warranty, making it a trusted choice for global manufacturers.
Future Development Trends
With the rise of Industry 4.0, combination weighers are evolving from simple weighing devices to intelligent production nodes. Key trends include:
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AI Visual Recognition – Enhancing accuracy and adaptability.
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Smart Integration with Multihead Weighers – Enabling seamless automation.
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5G Connectivity – Remote diagnostics, real-time monitoring, and predictive maintenance.
Choosing the right intelligent multihead weigher solution is essential for businesses aiming to improve productivity and packaging quality.
About After Sales Support
How about the after-sales service?
Warranty :2 years
About products customization
Can Kenwei machines support multiple languages?
Yes, we can customize the software interface to support multiple languages, making it easier for operators from different regions to use the machine.
Can Kenwei machines be customized for different industries?
Yes,According to the material characteristics and requirements of different industries, we developed various machine types for counting (small pouches into big bag), noodles, frozen foods, peppers, stick-shaped products, product -mixing, cheeses, salads and so on.
About Solution suggestions
How do Kenwei’s machines improve my production efficiency?
Kenwei machines enhance efficiency by automating the weighing, packaging, and quality control processes. Our high-speed, high-precision machines ensure accurate measurements, reduce human error, and increase throughput, leading to faster production times and lower operational costs.
How can Kenwei solutions help reduce waste in my production process?
Kenwei solutions improve accuracy in weighing, packaging, and quality control, reducing the chances of overfill or underfill. This leads to less product waste and higher operational efficiency.
The standard no-spring combination scale features a patented spring-free hopper design, making it ideal for weighing a variety of products such as melon seeds, peanuts, nuts, almonds, grapes, candies, pistachios, potato chips, shrimp chips, and more. The double-support feeding tray is easily adjustable, while the feeding hopper is designed for easy disassembly, ensuring convenience and cleanliness. With a maximum weighing speed of up to 120 bags per minute, the 14-head standard no-spring combination scale is an economical, versatile, and cost-effective solution.
The Standard Multihead Weigher features a high-speed, spring-free hopper with a new aluminum shell design, ensuring stable and fast weighing performance. The integrative welding of the mouthpiece case and middle seat enhances the overall machine strength. Ideal for weighing granular products like melon seeds, peanuts, nuts, almonds, raisins, candies, and pistachios, this 14-head multihead weigher offers hopper options of 1.6L and 2L. With a maximum weighing speed of 120 packs per minute, it delivers rapid and accurate results for high-volume operations.
The Kenwei JW-B26 Single Multihead Weigher Mixing and Packaging System offers fully automated operation, completing feeding, weighing, filling, date printing, and product output with high accuracy and speed. Ideal for granules, slices, irregular shapes, and mixed products like candy, nuts, snacks, pet food, and even small hardware. Its versatility and precision make it a perfect solution for diverse packaging needs.
The JW-B4 Combined Multihead Weighing and Packaging Machine with Z Conveyor is a compact, fully automatic solution ideal for packing snacks, nuts, candies, pet food, frozen products, hardware, and more. It integrates feeding, weighing, filling, sealing, and labeling with high precision and speed. Suitable for a wide range of materials, it’s perfect for space-limited production lines.
Contact Kenwei
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