Buckwheat processing takes two steps: First, calibrate seeds to 7-8 grades (sizes). Then de-hull seeds separately by grades. The sheller applies disc hulling technique which can be adjusted for processing different sizes of buckwheat. 
Buckwheat shelling machine /buckwheat sheller
 
Buckwheat Grading Machine CFQF800
This machine can calibrate seeds to seven grades. Vibrating motors applied are all CE certified. 

I. Component
1. Input hopper  2. Bucket Elevator  3. Screens
II. Specifications
Power: 3.4Kw, (380V,3phase,50Hz)
Processing capacity: 1000kg/hr.
Length*Breadth*height: 11.8m×2.0m×2.6m