Choose the machine according to the raw material that you want to use. Some parts of the machine are grain-specific. For instance, sieves, rollers, and grinders are available in different types. The sieve can be horizontal sieve or vibrating sieve, choose the one that fits well with your raw material. Similarly, rollers and grinders have different types and orientations. Their main function is to convert grains into flour. They should be chosen based on your raw material, wheat, corn/maize, cassava, rice, or other.