Combination Weigher: analysis of the core equipment of the intelligent weighing system

In the wave of modern industrial automation, combination weighers play a crucial role as the core equipment of intelligent weighing systems.


Combination weigher, also known as multihead weigher, is a key equipment in the industrial automation process. It can achieve high-precision sorting of ±0.1g through the intelligent combination of 8 - 32 independent weighing units. This mechatronic equipment has gradually replaced traditional volume metering devices and is widely used in many fields such as food, medicine, and chemical industry.

The modern combination weigher adopts a three-layer architecture design, with the upper layer vibrating feeding tray distributing materials, the middle layer weighing hopper group dynamically measuring, and the bottom layer collecting materials accurately. High-precision sensors and integrated circuit systems work together to ensure a stable weighing speed of over 3 times per second. Compared to the 3-5% error rate of ordinary platform scales, the combination scale can control the error within 0.3% through multi-hopper combination algorithms. For example, after a certain nut manufacturing company used the combination scale, material loss was reduced by 12%, and packaging efficiency increased by 300%.

1. Intelligent Algorithm Upgrade Efficiency: Using algorithm optimization and dynamic statistical correction technology, the packaging speed at the single discharge point can reach up to 200 packages per minute, with a processing speed 3 to 4 times higher than traditional equipment.
2. Modular Design Concept: Supports quick assembly and disassembly of cleaning components in 3 minutes, stainless steel components with buckle installation, providing flexible configuration solutions with 1.6L, 2.5L, and 3.0L hoppers, making it convenient for users to expand.
3. Precise Anti-Misoperation Mechanism: Through a three-level verification system, it has strong long-term work stability, and the error rate remains below 0.15% even after 200 hours of continuous operation.
4. Breakthrough in Material Adaptability: Capable of handling materials from powders with a diameter of over 0.5mm to individual frozen products weighing 250g, solving the problem of material jam for irregular shapes and improving product qualification rates.
5. Innovation in Energy Consumption Control: Standby energy consumption is reduced by 70% in intelligent sleep mode, saving electricity costs for enterprises.

In the food processing sector, combination scales perform excellently in quantitative weighing of puffed foods, nuts, grains, etc.; indispensable in industries such as tea, coffee beans, pasta, and traditional Chinese medicine. After integrating a throat metal detector, the defect interception rate reaches over 98%; in the daily chemical, electronics, and hardware industry, applications for quantitative weighing or count packing of plastics, buttons, electronic components, and pipe fittings.

When purchasing, pay attention to key parameters such as accuracy level and processing speed, and assess suppliers' CE and OLML certification qualifications. For example, the combination scale from the domestic brand Guangdong Kenwei Intellectualized Machinery Co.,Ltd. is known in the industry for its stability and precision, widely used in the snack, fresh produce, meat, and pickled vegetable food industries, making it a preferred choice for many food manufacturing companies and packaging machine intermediaries. In terms of maintenance and operation, it is recommended to establish a three-tier maintenance system to effectively reduce equipment failure rates and extend the mean time between failures. Additionally, it is important to pay attention to keywords like technical support and product warranty for the combination scale. For instance, the combination scale from  Guangdong Kenwei Intellectualized Machinery can extend the warranty period to 2 years.

With the deepening of Industry 4.0, combination weighers are evolving from single measurement devices to intelligent production nodes. AI visual recognition and multihead weigher integration solutions are growing rapidly, and 5G-connected combination weighers can achieve remote debugging and fault diagnosis, enhancing overall equipment efficiency. Choosing the appropriate intelligent combination weigher solution will be key to improving quality and efficiency.