Onion grading machine adopts advanced sensing technology and automatic control system, which can efficiently and accurately sort onions according to their size, weight, shape and other criteria. Taizy’s automatic onion grading machine has two types and various models for customers to choose, and supports customers’ personalized customization.

onion sorter with grading roller
onion sorter with grading roller

Advantages of Automated Sorting Machine

  • Alta eficiência. Automated operation makes onion sorting faster, which can significantly improve production efficiency and reduce labor costs.
  • High precision. Equipped with advanced sensors and detection technology, onion sorting machine can accurately grade onions according to their size, shape and weight, ensuring that each onion is correctly categorized.
  • The number of grades can be customized. Typical grading onions​ categorize into 3-6 grades based on size. If you want to have other grades, we can customize it for you.
  • Durable. Automatic onion grading machine is made of 304 stainless steel high quality material, which makes maintenance and cleaning more convenient and prolongs the service life.
  • Versatilidade. Not only can food grading machine handle onions, it can also be applied to other similarly shaped food, with a wide range of applications.
  • Multiple models and types to choose from. In order to meet the needs of not using customers, a variety of models and types of sorting machines are designed for customers to choose from, adapting to the different scale needs of customers.

Applications of Onion Grading Equipment

This type of onion grading machine is widely used in agricultural processing, fruit and vegetable wholesaling, and supermarket supply chains to ensure consistency and quality of the final product.

It is equally applicable to other vegetables, fruits and produce of similar shape, size and physical characteristics. Specifically, potatoes, garlic, lemons, tomatoes, oranges, grapefruit, citrino, apples, etc..

How Are Onions Graded by Automatic Sorting Machine?

First is the loading. Onions are fed into the grading machine by conveyor belt or manually.

Secondly, detecting the onions. Built-in sensors and vision systems detect key parameters such as size, weight and shape of the onions.

Thirdly, onion grading. Based on preset grading criteria, the machine automatically sorts the onions to different outlets.

Finally, collection and packaging. The graded onions automatically enter the corresponding packaging area according to different grades, ready for the next processing stage.

Onion Grader for Sale

Drum Grader

automated sorting machine
automated sorting machine

The drum grader is primarily onions moving forward along inclined drums. Smaller onions fall under the drum of the corresponding diameter size, while larger onions continue on until they meet the next set of drums.

The customers can change the grading accuracy by adjusting the number of drums and the size of the drum diameter.

working video of fruit grading machine

Roller Bar Grading Machine

roller grading machine
roller grading machine

Roller bar grading machine consists of a set of parallel rows of roller bars, and the distance between roller bars can be adjusted as required.

Through the double screw rotation, drive the rollers forward parallel movement. Gradually increase the gap between the roller bars, and make to achieve the relative size of onions. Onions will fall from the gap between the roller bars to the collection boxes, complete the purpose of grading.

grading beam with roller

There are two types of automatic sorting machines, both of which greatly save time in manual grading. Drum grader is suitable for small farm or primary processing needs, simple operation, easy maintenance and lower cost. Grading beam with roller is more suitable for larger scale production needs with high grading efficiency, high accuracy, high automation and durability.

If you are interested in the onion grading machine, contact us to get more information about the parameters of the equipment, the latest offer, preferential activities and so on.

Onion Grading Machine Price

The price of automatic grading machines varies depending on factors such as brand, model, features, processing capacity and degree of automation.

You could choose the right size of the machine based on the processing capacity, automation level required, budget, etc.. Compare the prices of different brands and models on multiple platforms and choose a cost-effective manufacturer. You should also consider choosing a supplier that can provide warranty period, technical support, and other services.

machine for grading
machine for grading

How to Choose Reliable Grading Machine Suppliers?

Taizy Food Machinery is a leading manufacturer of food processing machinery located in China.

  1. Insist on improvement and upgrading. We has more than 20 years of experience in the development and production of agricultural equipment. We are constantly committed to improving and upgrading the performance and quality of the food grading machine to increase intelligence and durability.
  2. Atendimento personalizado. We are able to provide personalized onion grading machine design and production line configuration according to the specific needs of customers, to ensure that meet the needs of different scale production.
  3. Perfect after-sales service. We provide comprehensive service content, including one-year warranty period for equipment, pre-shipment commissioning, technical support and maintenance, etc., to make that customers feel at ease.
  4. Global supply. Our machines have been exported to more than 40 countries around the world, and our high-quality equipment and professional services are recognized and praised by many customers.
grading machine manufacturers
grading machine manufacturers

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