Onion Grading Machine
Graduated-belt sizing for faster, cleaner packing.
Specifications
Configuration details.
- Capacity
- 2–10 tons/hour
- Motor
- 7–15 HP, 3-phase, 440V
- Body Material
- Powder-coated mild steel
- Dimensions (L×W×H)
- 30 × 12 × 7 ft
- Weight
- 4–5 tons
- Warranty
- 1 year
- Size Grades
- 3 + 1 reject output
All specifications vary by configuration — ranges shown span our smallest to largest build for this model. Tell us your requirement and we'll spec the exact machine.
Overview
How it works
Onions are usually graded by simply letting them find their own size — this machine runs them over a conveyor with graduated openings, so each bulb drops through the gap that matches its diameter. What starts as one mixed lot ends up split into small, medium, and large in a single uninterrupted pass.
Features
Built for reliable, everyday use.
FAQs
Common questions.
How exactly does the sizing mechanism work?
Onions travel across a belt with openings of increasing size, and each bulb drops through the first gap it fits — smaller ones first, larger ones further along.
Does the process bruise the bulbs or shorten storage life?
If anything it helps — the drop-through handling is gentler than manual tipping and sorting, and damaged onions are what typically spoil first in storage.
Can the gap sizes be adjusted for different onion varieties?
Yes, the graduated openings are set to match whatever size range your particular crop runs.
How much time does this save over manual grading?
What takes a crew several hours by hand typically runs through in minutes on the machine.
Get In Touch
Get pricing and specs for the Onion Grading Machine.
Tell us your crop, daily volume, and shed size and we'll recommend a configuration and quote — usually within one business day.
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