What is the flour milling process of a wheat flour processing machine?

In recent years, with the increase in wheat production, wheat flour processing machines have occupied an important position in flour production, changed the mode of agricultural economic development, and improved the economic level of farmers.

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Many novices see this business opportunity and want to join this industry, but it is recommended that everyone first understand the milling process of the machine before purchasing this type of wheat flour mill machine. This will be of great help to the later operation of the equipment.

The whole 20tpd wheat flour milling machine is composed of two parts, the wheat cleaning process, and the wheat flour milling process.
We also can design the flour production process and equip suitable flour milling machines based on your actual condition and your requirements.

The cleaning process includes sifting, scouring, stoning, washing, magnetic selection, magnetic separation, etc. The combination of such cleaning processes saves space reduces investment costs, and can meet the cleaning needs.
The wheat washer can remove the wheat in the abdominal ditch of the ash and also has the effect of removing the stone again.

The wheat flour processing machine of the 20TPD flour mill machine manufacturer includes sieve classification and modding.
This is taken into full consideration on the wheat husk scraping, and the effect of separation of the skin, to ensure that the bran is integrity and clean.

The new wheat flour machine adopts a new flour-making method and improves the material classification process to improve flour purity. These are closely related to the powder-making process.

If a wheat flour processing machine wants to process flour, it needs to know the flour milling process. The purpose of wheat flour milling is to process the cleaned and moisture-conditioned wheat into wheat flour suitable for different requirements through the action of flour machinery. At the same time, in the wheat By-products are separated under the action of flour machinery.

Wheat flour making milling is an extremely complex and important process. The key to the flour milling process is how to separate the endosperm from the wheat bran and wheat germ as much as possible. Therefore, the problem to be solved in flour milling is how to combine high flour extraction rate and Wheat flour has low wheat hull separation, which is also the focus of the flour milling process.

Today, flour is classified into many categories and is suitable for the production of various foods. This requires the flour milling process to become more and more perfect. When processing wheat, special attention must be paid to the flour milling process to avoid substandard flour production.(read more: What problems do wheat flour machines encounter?)

Manufacturers can adopt different flour milling processes according to their own needs. Our new wheat flour processing machine manufacturers will continue to strengthen the technology of flour machinery to meet the needs of the people and continuously improve the quality and technology of the machinery.

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The flour milling process has evolved from wheat being ground between two large stone wheels (although this process does still occur in a few mills). In a roller mill the practice centres around separating the three components of a wheat seed – the white endosperm, the outer bran layers, and the wheat germ. These are each made up of different materials and, when separated and milled in isolation, the miller can produce flours that are finer and therefore better suited for today’s uses. For more detailed information on wheat structure click here.

The video below shows the layout and vast range of milling machinery that it used in a modern flour mill to convert wheat into flour. The video is shown with the kind permission of Buhler who make the machinery (www.buhlergroup.com).

Before it enters the mill floor, wheat is cleaned and then conditioned; after which, it passes through two cast steel "break" rollers which are set slightly apart from each other. The top roller runs at a slightly faster rate to the lower roller, and when wheat passes through it creates a shearing action, opening up the wheat grain. Opening the grain, rather than pulverising it, gives better access to the endosperm particles within.

The various fragments of wheat grain are separated by size and weight and will pass through a complex arrangement of sieves and other machinery in order to isolate the three component parts of the wheat. Eventually, all the endosperm particles will pass through a series of smooth reduction rolls for final milling into white flour.

In a typical mill, there may be up to four break rollers (that shear open the wheat seeds and then further break open already sheared wheat) and 12 reduction rolls. Some particles of flour will pass through just one break roll and one reduction roll, while those closer to the layers of bran and germ will pass through multiple rolls.

The modern milling process allows the miller to remove the bran particles from the endosperm, grind the endosperm into flour, sift the ground stock, and remove flour produced at each stage.

Millers may blend different wheats prior to milling in order to achieve a specific grist. Additionally, they may also blend different flours in order to produce the exact product specification demanded by their customers. By blending together the many different flour streams produced by the mill, a miller can create further variations in features such as flour colour. 

Very white flours would come from the early streams only, while brown flours involve the use of most streams. Wholemeal flour is produced when all the streams, bran, germ, and flours are blended back together with nothing removed.

You can learn more about the Types of Flour produced by UK millers.

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