Gravity Destoner Machine
Density-based separation for precision-grade seed and grain.

Gravity Destoner Machine specifications.
- Capacity
- 1–8 tons/hour (wheat basis)
- Motor
- 2 HP, 3-phase, 440V
- Body Material
- Mild steel
- Dimensions (L×W×H)
- 5 × 5 × 6 ft
- Weight
- 700 kg
- Warranty
- 1 year
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.

How the Gravity Destoner Machine works
Some stones and impurities end up exactly the same size as good grain, which means a sieve alone can't tell them apart. Only weight can. This machine stratifies material by density across an oscillating, air-fed deck, so heavier stones and lighter chaff both separate out even when nothing about their size gives them away.

Key features of the Gravity Destoner Machine.
Gravity Destoner Machine FAQs.
How is this different from the standard Destoner Machine?
The standard destoner combines air, vibration, and screens; this one relies specifically on density stratification across an oscillating deck, which catches stones and impurities that are the same size as the grain, something screen-based separation alone can't do.
What crops is it best suited to?
Wheat, paddy, pulses, and seed crops where precise, density-based cleaning matters more than raw throughput.
Can the separation be tuned for different materials?
Yes, deck tilt and airflow are both adjustable, so the same machine can be set up differently for different crops and impurity types.
How much power does it draw?
Just 2 HP on a 3-phase, 440V supply. For the volume it handles, up to 8 tons an hour on a wheat basis, the running cost stays low.
What kind of floor does it need?
A level one. The deck separates on a fine balance of tilt and airflow, so an uneven base affects the accuracy. It's about 5 by 5 feet, 6 feet high, at roughly 700 kg.
Get pricing and specs for the Gravity Destoner Machine.
Tell us your crop, daily volume, and shed size and we'll recommend a configuration and quote, usually within one business day.




