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Kenwei is a global professional manufacturer which specialized in weigher packing machines and multihead weigher machines.

Intelligent Combination Weigher & Automatic Precision Weighing: A Smart Solution for Efficient Food Packaging

In the food packaging industry, weighing accuracy and efficiency are critical to improving production performance and controlling costs. Traditional manual weighing methods are not only inefficient but also prone to errors, often resulting in material waste and inconsistent product quality. In contrast, automated quantitative weighing equipment—particularly combination weighers—has become the preferred choice for modern food manufacturers. With their intelligent multi-hopper weighing systems, these machines achieve rapid and precise quantitative packaging, setting a new standard for efficiency and reliability in the industry.
The combination weigher, also known as a multihead computer combination weigher, is an automatic quantitative weighing device based on intelligent computer algorithms. Unlike traditional electronic scales, it operates with multiple weighing hoppers working simultaneously. Through high-speed calculations, the system selects the optimal combination to ensure each package maintains highly consistent weight.During the automatic weighing process, a combination weigher typically operates as follows:
  • Feeding: The product is evenly distributed into each weighing hopper via a vibrating feeder.
  • Weighing: Each hopper independently measures its weight, transmitting data in real time to the control system.
  • Optimal Combination Calculation: The computer rapidly analyzes all possible combinations and selects the one closest to the target weight.
  • Discharge: The qualified combination of product is released into the packaging machine, completing sealing, labeling, and subsequent steps.
This technology is widely used across various food manufacturing industries for granular, sliced, or irregular materials such as nuts, candies, and frozen foods. It achieves a weighing accuracy of ±0.1g to ±1g and speeds of up to 120 packs per minute, delivering both precision and efficiency in modern food packaging.
The continuous development of packaging technology, the technology of combination weighers has also been constantly improving, and there are now numerous manufacturers both at home and abroad. As the core equipment for automatic quantitative weighing solutions in the food industry, combination weighers can significantly enhance packaging accuracy, speed, and cost efficiency. Therefore, choosing the right automatic quantitative weighing equipment is crucial for production efficiency.Food manufacturing enterprises should select the appropriate combination weigher based on the characteristics of their materials. Key factors include:
  • Accuracy requirements: Different foods have different tolerance levels for errors. For example, premium snacks may require an accuracy of ±0.2g, while pet food can allow a wider range of ±2g.
  • Weighing speed: Low-speed models (40–60 bags/min) are suitable for small-scale production, while high-speed models (80–120 bags/min) are ideal for large-scale production lines.
  • Material characteristics: Fragile products (such as chips) require gentle vibration feeding, while powdery materials (such as milk powder) need dust-proof designs.
In addition, it is necessary to comprehensively evaluate the manufacturer’s technical capabilities and after-sales service. By comparing imported and domestic brands, enterprises can choose a combination weigher that offers high cost performance and stable quality to achieve the goals of improving efficiency and reducing costs.
Intelligent Combination Weigher & Automatic Precision Weighing: A Smart Solution for Efficient Food Packaging 1
Therefore, when selecting a model, food manufacturers should carefully consider the key points of automatic quantitative weighing equipment and choose a combination weighing and packaging machine manufacturer with reliable technology and comprehensive service. Guangdong Kenwei Intellectualized Machinery Co.,Ltd. is such a trusted industry-leading enterprise.
Since its establishment in 2006, Guangdong Kenwei Intelligent Machinery Co., Ltd. has grown steadily for nearly 20 years to become a professional combination weigher manufacturer with large-scale production and strong international influence. The company employs over 300 staff, more than 30% of whom are technical professionals. It has built a comprehensive service system covering design and development, production and manufacturing, marketing and sales, as well as installation, commissioning, technical training, and after-sales support, providing customers with deeply customized solutions for fully automatic quantitative weighing and packaging systems.
The company’s technical strength is outstanding, having obtained numerous authoritative certifications, including the EU CE certification, ISO9001 Quality Management System certification, China Metrology PA/MC certification, OIML International Metrology certification, and SGS corporate qualification certification. It holds more than 60 utility model patents (including design patents) and over 10 software patents. Continuously innovating in product development, the company has created more than 20 customized series of models tailored to different material characteristics, which are widely used across industries such as food, pharmaceuticals, and chemicals.
In the food industry, Guangdong Kenwei ‘s fully automatic quantitative weighing and packaging systems have demonstrated excellent performance. For example, a leading puffed snack company implemented this system and saw its packaging loss rate drop sharply from 2.3% to 0.5%, while labor costs were reduced by 40%. The equipment investment was recouped in just 14 months. At the same time, the significant improvement in efficiency allowed the company to handle 30% more orders during peak sales periods, resulting in substantial revenue growth. In the nut industry, a benchmark enterprise equipped with Kenwei’s 24-head combination weigher achieved a daily raw material processing capacity exceeding 20 tons. Packaging efficiency increased by 300%, annual raw material cost savings exceeded 800,000 RMB, and the product qualification rate soared to 99.97%, achieving simultaneous improvements in both cost and quality.
Intelligent Combination Weigher & Automatic Precision Weighing: A Smart Solution for Efficient Food Packaging 2
In terms of service, Guangdong Kenwei Intelligent has established a three-dimensional service system of “24-hour response + customized upgrades + 35% cost savings.” Whether it’s rapid response to equipment malfunctions or flexible upgrades for the intelligent transformation of existing production lines, the company provides comprehensive support for enterprises. In the era of Industry 4.0, Guangdong Kenwei Intelligent Machinery Co., Ltd., with its advanced technology, high-quality products, and comprehensive services, has become a core partner for food companies in building intelligent production systems, helping them steadily advance in their digital transformation and achieve efficient, precise, and sustainable development.

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