Fully Automatic 100T/D Maize Flour Processing Plant is a fully automatic complete milling equipment specially designed for large-scale corn processing, with a daily processing capacity of 100 tons (24 hours). The entire set of equipment adopts advanced dry degermination technology and a fully automatic PLC control system to integrate the complete process of corn raw materials from cleaning, degermination, grinding, screening to packaging into a continuous production line. This equipment is widely used in the industrial production of corn flour, corn grits, corn flour and other products. The end products can cover staple food corn flour in the African market (such as Ugali, Nshima, Posho), Latin American tortillas (Tortillas, Arepas), as well as various snack foods and breakfast cereals. With advanced automation solutions and energy-saving design, the production line can significantly reduce labor and operating costs.
Maize Flour Processing Plant Working Principle
This 100T/D fully automated corn flour processing plant employs a dry degerming and milling process. Its core working principle is to utilize the differences in physical properties (density, hardness, and toughness) between the endosperm, germ, and bran of corn kernels. Mechanical force is used to sequentially complete cleaning and impurity removal, moisture adjustment, degerming and separation, multi-stage grinding, and grading and sieving. Ultimately, the endosperm is ground into corn flour and corn grits of varying fineness, while byproducts such as germ (for oil extraction) and bran (for animal feed) are separated. The entire production line is centrally controlled by a PLC system, achieving fully automated operation from material input to finished product packaging.
Maize Milling Plant Workflow
Raw Material Receiving and Temporary Storage → Cleaning and Impurity Removal → Moisture Adjustment (Wetting Wheat) → Degerming and Peeling → Coarse Grinding and Crushing → Initial Screening and Grading → Fine Grinding and Milling → Final Screening → Flour Blending and Packaging
1.Raw Material Receiving and Temporary Storage
Corn raw materials are temporarily stored in raw material silos via receiving hoppers and conveyor belts. This step ensures a continuous and stable supply of raw materials for the production line, guaranteeing a continuous production capacity of 100T/D.
2.Cleaning and Impurity Removal
Cleansing is the first critical step in corn processing, aiming to remove various impurities carried in the corn. The main equipment involved in this step includes:
Vibrating Cleaning Screen: Removes straw, dust, and other large, medium, and small impurities.
Gravity Destoner: Separates heavy impurities such as sand, gravel, and mud.
Magnetic Separator: Removes metal impurities such as iron nails and iron filings.
Air Classifier: Uses airflow to remove dust and light impurities.
Thorough cleaning not only ensures the purity of the final product but also protects subsequent grinding equipment from damage.
3.Moisture Adjustment (Watering and Humidifying the Wheat) After cleaning, the corn enters the water-mixing machine and the humidifying bin for moisture adjustment. Through precise water control, the corn moisture content is adjusted to 16%-18%, moderately softening the endosperm and increasing the toughness of the seed coat, thus facilitating the smooth separation of the germ from the endosperm during subsequent degerming. The humidifying time is 6-24 hours, adjusted according to the corn variety and hardness.
4.Degerming and Peeling Degerming is the core step that distinguishes corn processing from wheat processing. Corn germ is rich in oil; if not effectively removed, it will directly affect the storage stability and sensory quality of the flour. The main equipment in this step includes:
Degerming machine: Utilizes the differences in density and hardness of the various components of corn to peel the germ from the endosperm.
Polishing machine: Removes residual seed coat, improving the appearance of the grains and the whiteness of the flour.
Air separation system: Utilizes airflow to effectively separate the germ, seed coat, and endosperm.
The separated germ can be used as a raw material for oil extraction, while the seed coat is used in animal feed production, achieving complete utilization of the raw materials.
5.Coarse Grinding and Crushing
After degerming, the endosperm enters the coarse grinding stage, where it is crushed into coarse particles (corn grits) using a hammer mill or roller mill. This stage initially crushes large pieces of endosperm, preparing it for subsequent fine grinding.
6.Initial Screening and Grading
The coarsely ground material enters a high-square flat screen or rotary screen for initial screening. Screening separates the material into three grades: fine powder (finished flour), medium particles (returned for re-grinding), and coarse particles (further crushing). The coarse particles are returned to the mill for further grinding through a return system, forming a closed-loop cycle to maximize flour yield.
7.Fine Grinding and Flour Making
The medium particles from the initial screening enter the fine grinding stage, where multiple roller mills grind the material stage sequentially. Each grinding stage is followed by screening for grading. Through repeated cycles of grinding and screening, the endosperm is gradually ground into corn flour of uniform fineness. The flour fineness can be adjusted between 40-120 mesh according to customer requirements.
8.Final Sieving: The finely milled flour undergoes final sieving using a multi-layer vibrating screen to ensure uniform particle size in the finished flour. Simultaneously, a centrifugal sieve or air classifier separates the flour into different grades based on fineness to meet the needs of various end markets.
9.Blending and Packaging: The finished flour is temporarily stored and mixed in a blending silo (nutrient fortifiers can be added as needed), and then enters a fully automated packaging system. The packaging equipment automatically weighs, fills, and seals the flour. Packaging sizes can be customized to customer requirements, commonly 1-5kg, 10-25kg, and 25-50kg bags.
Maize Flour Milling Machine Features
Fully Automated PLC Intelligent Control System
The entire production line is equipped with an advanced PLC programmable logic control system, enabling fully automated monitoring and operation from material feeding to finished product packaging via a touchscreen human-machine interface. The system can display the real-time operating status of each process and supports one-button start/stop and automatic parameter adjustment.
Complete Dry Degerming Process
Utilizing dry degerming and milling technology, this system eliminates the need for large amounts of water. The process includes cleaning, degerming, polishing, grinding, sieving, dust removal, and packaging. The equipment configuration includes a complete set of core equipment such as vibrating screens, destoners, magnetic separators, degerming machines, polishing machines, mills, high-square flat screens, and packaging scales.
High Standardization and Customizable Design
The equipment uses a combination of carbon steel and stainless steel, with stainless steel piping in the grinding section to ensure food hygiene. The production line layout is scientifically designed and can be customized to fit the customer’s factory site. The equipment is CE and ISO9001:2015 quality system certified.
Energy-efficient and high-performance power system
The total installed power of a 100T/D production line is approximately 220-260kW, with a unit energy consumption of only 20-22kWh/ton. The grinding mill adopts imported grinding rollers and chain drive technology, featuring energy saving, durability, and low noise.
Maize Flour Milling Plant Advantages
Significantly Reduced Labor Costs
The fully automated production line requires only 3-4 operators for daily operation. Compared to traditional semi-automatic production lines, labor requirements are reduced by over 60%, significantly lowering long-term labor costs.
High Flour Yield Leads to Higher Economic Benefits
This production line achieves a corn flour yield of 74%-78%, with byproducts (animal feed) accounting for approximately 20%-25%. The overall flour yield (corn grits + corn flour) reaches 75%-80%. This yield significantly surpasses the industry average, providing customers with higher raw material utilization and return on investment.
Stable and Reliable Product Quality
Through meticulous control of multi-stage grinding and grading screening, the finished flour has a sand content of less than 0.02% and a magnetic metal content of less than 0.003 g/kg. Flour fineness can be flexibly adjusted within the range of 40-120 mesh, ensuring uniform particle size, high purity, and a pure taste.
Flexible Multi-Product Output Capability
A single production line can flexibly switch between producing different grades of products according to market demand, including ultrafine corn flour, medium-coarse corn flour, corn grits, and by-products such as corn germ and corn bran. This flexibility allows customers to adjust their product mix based on market conditions, maximizing operating profits.
Corn Flour Processing Plant Benefits
Rapid Return on Investment
A large-scale production capacity of 100T/D, combined with high flour yield and low labor costs, enables customers to recoup their equipment investment in a short period. Taking one ton of corn processing as an example, the extra output from the high flour yield directly translates into substantial profit growth.
One-Stop Turnkey Service
As a complete equipment provider, we offer a turnkey service covering the entire process from factory layout design, equipment manufacturing, installation and commissioning to operator training. Customers do not need to piece together equipment from different suppliers, avoiding the risks of equipment incompatibility and project delays.
Worry-Free After-Sales Support
The equipment comes with a one-year warranty and a comprehensive spare parts supply system. Our engineering team provides on-site technical support and operator training to ensure long-term stable operation of the production line.
International Quality Certification Guarantee
The equipment is CE and ISO9001:2015 international quality system certified, meeting international market quality standards. Whether exported to Africa, Southeast Asia, South America, or the Middle East, it meets local quality access requirements.
Conclusion
The 100T/D Maize Flour Processing Plant is a complete industrial corn flour processing system integrating fully automated control, efficient dry degerming technology, high flour yield, and flexible multi-product output.
From raw material cleaning, moisture adjustment, degerming and separation, multi-stage grinding to finished product packaging, the entire production line achieves fully automated operation, requiring only3–4 operators to complete a processing capacity of100 tons/day.
Key performance highlights:
- Flour yield: 74% – 78%
- Comprehensive flour yield (including grits): 75% – 80%
- Sand content in finished flour: < 0.02%
- Adjustable fineness: 40 – 120 mesh, meeting diverse market requirements for corn flour and grits.
Whether you are planning to build a new large-scale corn processing plant, upgrade an existing production line, or expand into overseas corn processing markets, this fully automatic 100T/D equipment is theideal choice for achieving large‑scale, modern production.
Want to learn more about the Fully Automatic 100T/D Maize Flour Processing Plant?
Welcome to leave a message online. Please provide the following information, and our professional technical team will customize a solution for youwithin 12 hours:
- Your required daily processing capacity (e.g., 10T/D, 20T/D, 50T/D, 100T/D or larger)
- Finished product fineness requirements (coarse powder, fine powder, or corn grits)
- Factory workshop dimensions and local voltage / site conditions
Our engineers will provide you with:
- Free factory layout design
- Detailed technical parameters
- The most competitive quote
Click the “Inquire Now” or “Get a Quote” button on this page to start your profitable corn milling journey today!