Potato grading is an important step in potato processing. Through potato grading, potatoes of different sizes can be classified to meet the needs of different customers and increase the sales price of potatoes. The common way to grade potatoes is by size, and the key equipment to achieve this grading task is the roller-type potato grader. So how does a potato sorter work?
Why do we need to grade potatoes?
- Improve product consistency: potatoes of different sizes are suitable for different products, and they require consistent sizes during processing to ensure uniform quality of the finished product.
- Facilitate subsequent processing: Some equipment such as slicers and fryers have requirements for the size of raw materials, and unified grading can improve processing efficiency.
- Meet market demand: Retail and export usually require potatoes to be packaged according to specifications, and graded products are more competitive in the market.
The composition of the sorting machine:
- Feeding and conveying part: evenly feed the scattered potatoes into the roller area.
- Roller grading area: composed of several rollers, and the distance between the rollers gradually increases from front to back.
- Grading outlet: each level has a discharge port corresponding to potatoes of different sizes.
- Motor and reduction device: provide power to rotate the rollers.
How does a potato sorter work?
When potatoes enter the grading area through the conveyor belt, the rollers rotate at a constant speed, driving the potatoes to roll and move forward. As the gap between the rollers increases from front to back, small potatoes will first fall from the smaller gap in the front, while large potatoes will continue to roll forward until they reach their corresponding gaps and fall. Finally, all potatoes are distributed to different discharge ports according to their size, achieving automatic grading.
Precautions for use:
- Ensure that potatoes are fed evenly to avoid accumulation;
- Regularly check the gap and wear of the rollers;
- Clean up debris in time after grading to avoid blockage;
- When adjusting the roller spacing, turn off the power to ensure safety.