There is no single universal process for every corn and specialty-grain operation. The following pathways illustrate how equipment requirements may change according to the incoming crop and finished product.
Whole-Kernel Edible Corn Cleaning
A whole-kernel corn operation may prepare edible corn for bulk shipment, rail or truck loadout, industrial customers, export, further processing, or packaging. The objective is to remove unwanted material while protecting the marketable kernel.
- 1Receiving and Storage
- 2Pre-Cleaning and Magnets
- 3Cleaning and Aspiration
- 4Destoning and Density Separation
- 5Sizing and Grading
- 6Optical Color Sorting
- 7Finished-Product Storage
- 8Weighing, Packaging, or Bulk Loadout
Equipment may include receiving systems, conveyors, bucket elevators, magnets, scalpers, grain cleaners, screeners, aspirators, dust filters, destoners, gravity separators, sifters, graders, optical color sorters, storage bins, batch scales, bulk-bag systems, bagging machines, and truck or rail loadout equipment.
Dry Corn Milling and Corn-Grit Production
Dry corn milling may produce large grits, small grits, meal, flour, germ, bran, or other defined products. The process may require controlled preparation and multiple separation stages before finished products are collected and packaged.
- 1Receiving and Cleaning
- 2Destoning and Separation
- 3Conditioning When Required
- 4Degermination
- 5Aspiration and Classification
- 6Milling or Size Reduction
- 7Sifting and Product Grading
- 8Finished-Product Collection
- 9Packaging and Co-Product Handling
Equipment may include grain cleaners, destoners, conditioners, corn degerminators, aspirators, roller mills, impact equipment, sifters, plansifters, graders, conveyors, bucket elevators, pneumatic systems, bins, scales, packaging systems, and co-product-handling equipment.
The responsible equipment manufacturers and qualified technical specialists must determine the final process, machine settings, capacities, product routing, and operating requirements.
Oats, Quinoa, and Ancient Grains
Specialty grains vary significantly in size, shape, density, hull characteristics, fragility, foreign-material profile, and finished-product requirements. The equipment path must be developed around the specific crop.
- 1Receiving and Sampling
- 2Pre-Cleaning
- 3Cleaning and Aspiration
- 4Density Separation
- 5Size Grading
- 6Dehulling or Finishing When Required
- 7Optical Sorting
- 8Finished-Product Storage
- 9Weighing and Packaging
Equipment may include cleaners, screeners, aspirators, destoners, gravity separators, hullers, polishers, sifters, length or thickness graders, optical color sorters, conveyors, bucket elevators, storage bins, scales, bagging machines, and packaging systems.
Not every machine or stage applies to every specialty grain.