30TPD Maize /Corn Flour Mill Machine

This 50TPD maize flour processing line is a complete set for maize cleaning, peeling, crushing, flour milling and packing. It can produce fine maize flour with stable quality, easy operation and low energy consumption, suitable for small and medium grain processing plants.

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Raw Material Adaptation

Moisture content: Optimal 13.5% ~ 14.5%, max ≤15%. Too high moisture makes peeling and degerming difficult, finished product easy to mildew. Too low moisture causes kernel breakage, germ mixed into flour and shorten shelf life.

Impurity: Total impurities ≤1.0%. Minimize stones and metal impurities to protect peeling machine and roller mill.

Moldy kernels: ≤1%. Moldy maize will lead to dark color of corn flour and excessive aflatoxin.

Core Production Parameters

Daily processing capacity	30 tons of Maize per 24 hours
Total installed power	119.34kw (Full system power including cleaning, peeling, flour milling, conveying, dust removal and electric controll)
Flour extraction rate	80-90%
Daily flour output	24-27t/d
Working mode	Fully automatic continuous operation

Finished Product Quality Standard

Complete production line can produce fine flour from 40 to 60 mesh. Also can reach to 80-90mesh according to customer requirement.

Flour fineness:

40-60 mesh, can be adjusted

Moisture:

≤14.0%, good storage performance, not easy to mildew

Processing Configuration

Cleaning Section

The cleaning section is designed to remove impurities from raw maize. It consists of vibrating grain cleaner, gravity destoner and magnetic separation device. Sifting removes large and small impurities; gravity separation eliminates heavy impurities such as stones and clods. The magnetic separation device attracts ferromagnetic metal foreign objects, protecting the downstream peeling and milling equipment from damage caused by hard metal particles. After cleaning, the impurity rate of raw material is greatly reduced, ensuring stable operation of subsequent processes and good finished-product quality.

Peeling and Crushing Section

The peeling section adopts dry-type peeling technology, equipped with one emery-roller peeling machine and one iron-roller peeling machine. Maïs goes through two-step peeling treatment by emery roller and iron roller in sequence. The emery roller mainly polishes and removes maize husk; the iron-roller further rubs off residual bran layer to realize sufficient peeling and degerming. No water is added during the whole process. It keeps original moisture of maize, avoids moisture increase of raw material, which benefits subsequent milling process and finished-product storage.

Flour Milling and Sifting section

After crushing, the materials are fed into four roller mills for circular grinding. The ground product is conveyed to two plansifters for flour sifting. The oversize coarse materials return back to the roller mills for re-grinding, while qualified undersize powder is discharged out of the milling section for continuous corn flour processing.

Package System

Qualified corn flour is conveyed to the automatic packing unit. It supports quantitative filling and sewing for bags of 10-25 kg. Featuring stable weighing accuracy and simple operation, the machine meets various packaging requirements. Well-sealed bags are convenient for storage and outward transportation.

Flow Chart

Cleaning

Peeling

Crushing

Flour Milling

Packaging

Technical Parameters

Model	YBMF30
Capacity	30 tons per day (24 hours)
Power	119.34 kW
Flour fineness	40-60 mesh
Flour outrate	80-90%
Package	10-25 kg
Delivery	One 40HQ container needed
Installation Size	12m × 6m × 6.5m

FAQ

Q1: What is the processing capacity of this maize mill line?

Raw material input: 30 tons of maize per day. Output depends on maize quality and moisture.

Q2: What moisture content is required for raw maize?

Optimal moisture:13.5%-14.5%. Max moisture shall not exceed 15%. Too-wet maize will affect peeling effect and finished-product storage.

Q3: Can we adjust the fineness of final maize flour?

Yes. Different replaceable screen meshes can be installed in the sifting machine to change flour fineness, multi-grade products are available.

Q4: What packaging specifications does the packing machine support?

Automatic packing machine supports 10-25 kg bags, including quantitative filling and bag sewing.

Q5: Is this dry peeling or wet peeling process?

Adopt full dry peeling process: one emery-roller peeler plus one iron-roller peeler. No water adding during processing.