Combination Weigher Weighing Principle and Workflow
Discover how a combination weigher, also known as a multihead weigher, boosts efficiency and accuracy in food and packaging industries. With advanced weighing principles and smart workflow, Kenwei delivers reliable, high-speed solutions that cut costs, ensure quality, and maximize production.
A combination weigher, also known as a multihead weigher, is a high-precision automatic weighing device that applies advanced technology and intelligent algorithms. It is widely used in industries with strict measurement requirements, including food, pharmaceuticals, and daily chemicals.
By ensuring accurate measurement, automation, and intelligent management, combination weighers enhance production efficiency and product quality. They can automate the entire packaging process—from feeding, metering, and filling to date printing—greatly reducing manual labor and operational costs.
What Is the Weighing Principle of a Combination Weigher?
The core weighing principle of a combination weigher is based on simultaneous weighing using multiple independent weighing units, typically ranging from 8 to 32.
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Each weighing hopper records the material weight.
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The built-in control system compares data with the target weight.
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An optimization algorithm selects the best combination closest to the preset value.
This method ensures packaging accuracy, reduces overweight or underweight errors, saves raw materials, and improves batch acceptance rates.
How Does a Combination Weigher Work?
1. Feeding
Products are transferred to the infeed funnel by conveyor and evenly distributed into linear vibrator pans by the vibration of the top cone.
2. Distribution
From the linear vibrator pans, products drop into feed hoppers. After the weighing hopper completes the previous cycle, the feed hopper opens to release product into the weighing hopper.
3. Combination
The CPU receives data from each weighing hopper and calculates the most accurate combination according to the target weight.
4. Discharging Methods
There are four ways to discharge products into the next equipment:
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Direct Discharge (Timing Hopper = 0): Products are discharged directly from the collecting funnel.
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Timing Hopper Discharge (Timing Hopper = 1): Products are stored in a timing hopper, then discharged to reduce drop time.
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Dual Equipment Discharge (Timing Hopper = 2): Products are stored in a timing hopper, then discharged into two machines separately, maximizing high-speed output.
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Timing Hopper + Auto-Sorting (Timing Hopper = 3): Products are stored in the timing hopper, and unqualified weights are automatically sorted into a reject channel.
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Guangdong Kenwei – Leading Manufacturer in China
Guangdong Kenwei is one of China’s top manufacturers of combination weighers, with an annual production capacity of over 10,000 units. Its multihead weighers are widely applied in weighing and packaging of cereals, snacks, frozen foods, and other products, making it a trusted partner for global food producers.
About Cooperation Process
What information is needed to get a quote from Kenwei?
For us to provide an accurate quote, please provide the following details:
Type of machinery you are interested in (e.g., multi-head weighers, metal detectors, etc.)
Specifications and customization requirements (e.g., capacity, speed, size, etc.)
Your intended application and industry
Quantity of machines required
Delivery location
About products customization
Can I customize Kenwei machines to suit my specific needs?
Yes, Kenwei offers a wide range of customization options to ensure that our machines meet your production requirements.
How do I request a custom-built Kenwei machine?
To request a customized machine, simply contact our sales or engineering team.
About Product choice
What is the average lifespan of Kenwei products?
Kenwei machines are built for durability and longevity. With proper maintenance, our products are designed to last for many years, even under heavy usage. We offer maintenance services and support to help extend the lifespan of your machines.
About Solution suggestions
Can Kenwei machines handle products with irregular shapes or sizes?
Yes, multi-head weighers are particularly effective for handling products with irregular shapes and sizes.
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 high-speed weigher features a new spring-free aluminum shell design with double chute feeding and dual high-speed hopper alternating feeding, significantly boosting feeding speed. It is ideal for weighing materials such as melon seeds, peanuts, nuts, almonds, raisins, candy, pistachios, and more. The 18-head high-speed weigher is equipped with 2L hoppers, achieving a maximum weighing speed of up to 180 bags per minute.
The Kenwei 16-Head Multihead Weigher with a 1.6L Three-Layer Hopper provides precise and efficient weighing with a maximum speed of 240 packs per minute, optimizing your production line. The main vibrating pan supports two types of mixed materials, offering versatility and consistent performance. This advanced multihead packing machine is ideal for a wide range of products, including nuts, raisins, candies, potato chips, and other snack foods, as well as hardware and plastic materials. It ensures reliable performance and high accuracy in various industries.
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