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 Product choice
How do I choose the right product for my business?
Choosing the right machine depends on several factors:
Product Type: Different machines are suited for different products (e.g., powder, granules, etc.).
Production Capacity: Consider the volume of products you need to process and the speed requirements.
Customization: If you have specific needs, such as the need for unique features or sizes, we offer customization options.
What is the difference between a multi-head weigher and a linear weigher?
Multi-head Weigher: Ideal for high-speed and high-precision weighing of products with irregular shapes or varying sizes. It provides multiple weighings in parallel for faster processing.
Linear Weigher: It is suitable for powder and granule. It is typically slower than a multi-head weigher but is effective for certain types of applications that require more continuous flow or controlled weighing.
Can Kenwei's machines be used in my industry?
Kenwei’s equipment is highly versatile and can be used across a wide range of industries, including:Food,Pharmaceuticals,Chemicals,Plastics and Agriculture.
Plastics If you're unsure whether our products are suitable for your industry, please contact us, and we can provide you with specific solutions tailored to your needs.
About Price and payment
Are the prices for Kenwei machines negotiable?
Prices are generally fixed, but depending on the order volume, long-term partnerships, or special circumstances, we may offer discounts or promotional pricing. Please contact our sales team to discuss your specific situation.
About Cooperation Process
How to operate it?
Many languages are available for global markets. There are not only detailed instructions, but also machine video for reference learning.
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 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.
Contact Kenwei
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