Introduction to Automatic Weight Sorting Machine Series, Weight Graders, Re-check Weighers, and Checkweighers

Sep 25, 2026 Leave a message

Dr. Emily Carter
Dr. Emily Carter
As a leading technical expert at Hansheng Automation, Dr. Carter specializes in the R&D of next-generation intelligent electric actuators and control solutions. Her work focuses on integrating cutting-edge technology to enhance the performance and reliability of our gear reducers.

 

Automatic weight sorting machine series, weight graders, re-check weighers, and checkweighers are used in industrial production for automatic grading, classification, inspection, and sorting. The machines run according to set weight parameters. If non-standard parts such as weighing support plates, sorting paddles, conveyor belt brackets, or sensor mounting bases need to be machined to site dimensions, we can custom machine them according to customer drawings. Hansheng Automation supports single-piece and small-batch delivery.

 

Automatic weight sorting machine series

Automatic weight sorting machine series, such as the KWG series and KDW-YP series, automatically grade or classify products by set weight range. These machines can work independently or be integrated with existing production lines and various feeding machines. They replace manual sorting and reduce low efficiency, large errors, mistakes, and high labor costs. They help customers optimize production, improve efficiency, and lower labor costs.

 

Weight graders

A weight grader is one type in the automatic weight sorting machine series. It grades products by preset weight range. The machine uses high-precision load cells and a control system to complete grading accurately and quickly. Weight graders are used in food, pharmaceutical, chemical, and other industries. They have practical value for quality control and cost savings.

 

Re-check weighers

A re-check weigher is used to recheck the weight of products that have already been graded or packaged, confirming that product weight meets the preset standard. The machine uses high-precision load cells and a data processing system to monitor product weight in real time. When an abnormality is found, it gives an alarm or automatically rejects the product. Re-check weighers are used in food, pharmaceutical, logistics, and other industries. They help improve product qualification rate and customer satisfaction.

 

Checkweighers

A checkweigher is similar to a re-check weigher and is also used to inspect product weight. Checkweighers usually have a wider inspection range and higher accuracy. They suit products of different shapes, sizes, and weights. The machine uses high-precision load cells and a control system to inspect products quickly and accurately. When weight abnormality is found, it gives an alarm or takes corresponding action in time.

 

System features

Modular open design: simple structure, easy to disassemble, convenient for maintenance and cleaning, and avoids dirt accumulation.
Imported food-grade conveyor belt: safe and hygienic, does not retain residue easily, suitable for food, pharmaceutical, and other industries.
Industrial stainless steel material: sturdy and durable, corrosion-resistant and rust-resistant, ensuring long-term stable operation.
Meets food processing standards: parts in direct contact with food are made of food-grade materials that meet relevant standards.
Multiple weight zones: supports up to 12 weight zones to meet grading needs for different products.
Compact design: saves space and is easy to integrate with existing production lines.
Data statistics and zone measurement: supports overall data statistics and zone measurement and counting for production management and quality control.

 

Specifications

KWG series product specifications include key indicators such as conveying speed, maximum load capacity, and accuracy. Specific parameters can be customized according to customer needs.
KDW-YP series product specifications also include conveying speed, maximum load capacity, accuracy, and other parameters. They suit different industries and application scenarios.

 

Applications

Grading and sorting of aquatic and seafood products: sea cucumber, abalone, fish, shrimp, crab, and similar products.
Grading and sorting of poultry and meat products: poultry legs, wings, internal organs, and similar products.
Grading and sorting of industrial products: precision parts, permanent magnetic materials, motor rotors, fan blades, artificial diamond raw materials, and similar products.

 

These machines use high-precision load cells and control systems to complete product weight inspection and grading for quality control and cost management. Our custom precision parts machining capability is not limited to weight sorting equipment. In addition to parts for food machinery, pharmaceutical packaging equipment, and chemical production equipment, Hansheng Automation can machine yacht precision parts, RC car precision parts, tobacco packaging machinery parts, and filling machinery parts according to drawings. We also machine non-standard parts for printing machinery and medical devices, supporting drawing-based customization and small-batch delivery.

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