Destoner Machine for Grain and Seed
Destoner that floats grain on a vibrating air deck and sinks stones, glass and metal — protecting your husker, screens and final product.
Overview
A destoner removes everything heavier than grain: stones, glass, metal fragments and mud balls. Material passes over a vibrating, inclined deck while air is blown up through it. Grain floats and travels over the deck; stones stay in contact with the deck and are carried to the stone outlet.
It is available in suction (negative pressure) and pressure (positive pressure) versions. Suction type is common where dust must be contained inside the machine; pressure type is simpler where space is tight. We will advise which fits your line.
Why it cannot be skipped
A single stone reaching a rice husker damages rubber rolls; a stone reaching a whitener scores the screen; a stone in a finished bag is a customer complaint you cannot explain away. Destoning is cheap insurance on equipment that costs far more.
Setting it up
Air volume, deck angle and feed rate decide the separation, and they change with the material and with moisture. We confirm the arrangement for your grain and provide the initial settings; the operator then has marked positions to return to.
Key features
- Suction or pressure type per line layout
- Vibrating deck with adjustable air flow
- Separate stone discharge with dust control
- Handles wheat, corn, paddy, soybean and seed
- Wear-resistant deck surface
- Enclosed body, dust outlet for a collector
Advantages
- Protects huskers and screens
- Handles high stone loads
- Suction type keeps dust inside
- Simple deck access
How it works
A vibrating inclined deck with upward air floats grain while heavier stones remain on the deck and are carried to a separate outlet.
Typical applications
- Rice mills (before the husker)
- Wheat and corn cleaning
- Seed processing
- Grain depots
- Feed mills
- Plants with stone contamination
- Rice milling lines
- Protecting downstream equipment
Specifications
| Type | Suction (negative pressure) or pressure (positive pressure) |
|---|---|
| Deck | Vibrating inclined deck with air chamber |
| Capacity | Confirmed per material in the technical agreement |
| Adjustment | Air volume, deck angle, feed rate |
| Materials | Wheat, corn, paddy, rice, soybean, barley, sorghum, seed |
| Body / contact material | Carbon steel (standard); stainless steel available on request |
| Electrical supply | Configured for the destination country — stated on the quotation |
| Documentation | Operation and maintenance manual, wiring diagram, spare parts list |
| Spare parts | Screens and wearing parts available as standard items |
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Tell us the material and the rate
Send the material, the hourly rate, the target cleanliness and the site conditions. We reply with what is still missing before a real price.
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