Why More Businesses Are Investing in Potato Sorting and Grading Lines As potato processing becomes increasingly automated, more farms, packing houses, and food processing plants are investing in a potato sorting and grading line. An efficient grading system helps improve product consistency, reduce labor costs, and increase production efficiency.
One of the first questions buyers ask is: How much does a potato sorting and grading line cost in 2026? The answer depends on several factors, including production capacity, automation level, and the overall configuration of the processing line.
Average Price of a Potato Sorting and Grading Line
The price varies according to the size and complexity of the equipment.
| Line Type | Capacity | Estimated Price |
|---|---|---|
| Small Grading Line | 1–3 tons/hour | $5,000–$20,000 |
| Commercial Grading Line | 3–10 tons/hour | $20,000–$80,000 |
| Fully Automatic Processing Line | 10–30+ tons/hour | $80,000–$300,000+ |
Complete processing lines that include washing, sorting, grading, weighing, and packaging equipment typically require a higher investment.

What Affects the Cost?
Several key factors determine the final price of a potato sorting and grading line.
Processing Capacity
Higher-capacity lines require larger grading machines, longer conveyors, and more powerful motors. As hourly output increases, the equipment cost also rises.
Automation Level
Semi-automatic systems require more manual operation and have a lower purchase price. Fully automatic lines with automatic feeding, grading, weighing, and packaging improve productivity but involve a higher initial investment.
Equipment Configuration
A basic grading line usually includes only grading equipment, while a complete processing line may also include:
potato washing machine
brushing machine
inspection conveyor
weighing machine
packaging machine
The more equipment included, the higher the total project cost.
Sorting Accuracy
Basic grading systems classify potatoes by size, while advanced solutions can sort by weight or use optical technology to identify defects and damaged potatoes. Higher accuracy generally increases equipment costs.
Machine Material
Most commercial grading lines are manufactured from carbon steel or food-grade stainless steel. Stainless steel construction offers better corrosion resistance, easier cleaning, and a longer service life, making it a preferred choice for food processing plants.
Which Potato Sorting and Grading Line Is Right for You?
The best solution depends on your production requirements.
Small farms can benefit from compact grading systems with simple mechanical sorting.
Commercial packing facilities often choose automatic grading lines that improve efficiency while keeping costs under control.
Large potato processing plants usually require fully automated lines integrated with washing and packaging equipment to maximize productivity.
Choosing equipment based on your current production and future expansion plans will provide better long-term value.
How to Reduce Your Investment Cost
You don't always need the largest or most advanced system. Consider these tips before purchasing:
choose a capacity that matches your production volume
invest only in the automation features you currently need
select a modular line that can be expanded later
work with an experienced manufacturer that offers customized solutions
A properly configured production line can reduce unnecessary investment while maintaining excellent performance.
Why Choose LONKIA Machinery?
LONKIA Machinery specializes in designing and manufacturing customized potato sorting and grading lines for customers worldwide.
We offer:
capacities for small, medium, and large production plants
customized equipment layouts
durable food-grade construction
reliable grading accuracy
professional installation and technical support
Whether you need a standalone grading machine or a complete potato processing line, our engineering team can provide a solution tailored to your production needs.
Conclusion
The cost of a potato sorting and grading line in 2026 generally ranges from $5,000 to over $300,000, depending on capacity, automation, and equipment configuration.
Instead of focusing only on the purchase price, businesses should consider production efficiency, grading accuracy, operating costs, and future expansion. Working with an experienced manufacturer like LONKIA Machinery ensures you receive a solution that delivers reliable performance and long-term value for your potato processing business.

