This presentation discusses grinding in feed production, which involves size reduction of feed ingredients to improve digestibility, mixing efficiency, and pelleting. Grinding is achieved through impact, attrition, and cutting using equipment like hammermills, attrition mills, roller mills, and cutters. The desired particle sizes are accepted after grinding while undesired sizes are re-ground.

1. Welcome to my
presentation

2. Grinding means modifying feed
ingredients by size reduction for
inclusion in the
production of
compound feed.

3. Increase of the surface area of a solid
Manufacturing of a solid with a desired grain size
Improving digestibility
Improving mixing efficiency
Facilitating pelleting

4.  Impact,
 Attrition and
 Cutting.

5.  Hammermills
 Attrition Mills
 Roller Mills
 Cutters
 Screening

8. Combination of
• cutting,
• attrition, and
• crushing

10. Rotary cutters
shearing with knife edges against a
striking plate

11. Desired particle sizes are accepted
Undesired particle sizes are re-grinded