Grinding: Process of reducing particle size for a specific application.

With over 9 decades of experience in constructing facilities for dry product grinding, our company boasts a wide variety of mills that enable achieving any particle size, ranging from simple crushing to micronization.

When the goal of the milling process is to obtain a product with tick granulometry, the SIGMA Hammer mill is employed. If instead, the intention is to obtain a fine granulate, we recommend the Pin mill B, because it guarantees a perfect grinding without needles of sifters. In case a median granule needs to be obtained, we suggest using the BCH Roller mill, which performs the job precisely while avoiding the excessive generation of dust and flours.

Prillwitz´s grinding machines are employed not only for wheat and maize milling but also for milling rice, pellets and a wide range of chemical and foodstuff products.

Types of mills and their most common applications.

The most important parameters to consider when determining the most suitable mill are:

  • Characteristics of the product to be ground
  • Required particle size distribution
  • Necessary capacity

Based on these factors, the decision between the following mills is made according to the requirement:

SIGMA Hammer Mill: When the goal of crushing or grinding is to obtain a product of medium or coarse particle size.

IMPACTOR B Impact Mill: If the aim is to achieve a fine or micronized particle size distribution.

BCH Roller Mill: In case grinding to intermediate particle sizes without generating a large amount of flour or very fine particles is required.

PERPLEX Disintegrator Mill: For low capacities and grinding to medium or fine sizes that require integrated screening.

DSE Lump Breaker: To reduce particle size or lumps to the minimum size necessary to avoid process blockages in subsequent stages.

– Laboratory Mills: These allow us to analyze grinding requirements and, at the same time, test the qualities of the ground product.

Main possible forces acting on the particle to grind it

Based on the characteristics of the particle to be ground and the desired particle size distribution, the most appropriate type of force to apply is decided, and ultimately the most suitable mill. In some cases, it is recommended to combine mills of different types to achieve the objective with lower wear and energy consumption.

Example of a turnkey micronized grinding plant

Based on the characteristics of the product to be ground, as well as the required particle size distribution and capacity, our engineers determine the most suitable mill and flow diagram. Incorporating the dimensions of the available space for installation, we create the machinery and accessory assembly plan. With all of this, along with the necessary operational logic, we design the electrical panel with PLC and screen to command the installation in an automated manner. Finally, with the assembly carried out by our highly specialized personnel, we obtain a Turnkey Grinding Plant.

In grinding plants, the most significant associated process is clearly Classification and Screening. However, other processes also play a role, such as:

Products that are typically ground to different particle sizes in grinding or micronization installations.

Our grinding machines are used not only in the milling of wheat and corn to obtain refined flours, but also in the milling of rice, animal feed, or other food or chemical products such as those listed below.

Grains or Seeds
  • Wheat
  • Corn
  • Oat
  • Coffee
  • Cocoa
  • Rye
  • Barley
  • Rice
  • Sunflower
  • Chickpea
  • Soybean
  • Peanut
  • Beans
  • Spices
  • Grain grinding products
  • Bran
  • Semolina
  • Zootechnical flour
  • Hominy grits
  • Grits
  • Fodder
  • Corn,Wheat, soya flour
  • Germ
  • Starch
  • Husk
  • Spices
  • Chemicals and minerals
  • Aluminum´s powder
  • Atrazine
  • Bentonite
  • Borax powder
  • Lime
  • Kaolin
  • Activated coal
  • Calcium carbonate
  • Cement
  • Quartz
  • Titanium dioxide
  • Dolomite
  • Fertilizers
  • Monoammonium phosphate
  • Diammonium phosphate
  • Tricalcium phosphate
  • Mica
  • Refractory materials
  • Sodium naphthalenesulfonate
  • Black carbon
  • Pigments
  • Soap
  • Salt
  • Precipitated silica
  • Caustic soda
  • Magnesium sulphate
  • Zinc sulfate
  • Tannin
  • Diatomaceous earth
  • Tinctures
  • Gypsum
  • Lithium
  • Foods
  • Balanced feed
  • Pellets
  • Sugar Glass
  • Icing sugar
  • Cacao
  • Coffee
  • CorianderTurmeric
  • Gelatine
  • Bone´s flour
  • Fish´s flour
  • Milk´s powder
  • Dry vegetables and leguminous
  • Bread crumbs
  • Others
  • Sawdust
  • Wood
  • Cork
  • Soap´s powder
  • Pigments

  • Related products