Classifying and Sifting

We offer many types of sifters that adapt to the type of product and the need for classification or screening. Some of them are rotary or centrifugal sifters, and others are vibrating or flat sifters. We even have the CL Line Sifter, which allows the product to be sieved within the pneumatic transport system. In all sifters and classifiers, the perforation of the screen or sieve adapts to each need.

In many cases, this classification is done after a milling process.

We have the right sifter for each product, granulometry, and requirement. There are fundamentally 3 types of sifting or screening:

1- Precision Sifting or Classification

In these cases, it is necessary for the incoming product to be classified or sieved into various fractions with very precise granulometry.

RSVM sieve shaker

RSVM sieve shaker

The RSVM Shale Shaker, is designed for the cleaning or classification of cereals or other products, allowing the separation of impurities and foreign objects of

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2- Security or Control Sifting or Classification

When it is necessary to perform sifting for quality control or safety review to separate foreign products like stones, cement, etc. In general, it is about separating elements that for some reason could have become detached and mixed in the process.

Associated with the control or safety process in product quality are also Magnetic Separators. With them, we ensure that there are no ferromagnetic particles in the process.

Cernidor cónico de seguridad de harina

CC conical sifter

Usable for final or control sifting of both powdered and finely granulated products, the CC Conical Sifter guarantees the absence of foreign particles in

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Screen sifter for pneumatic transport

CL On-Line Sifter

CL line sifter has been designed for control sifting or re-sifting in pneumatic conveying lines, ensuring the absence of foreign particles in the production

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3- Sifting or Classification by Specific Weight Difference

In these cases, for example, it is necessary to separate a light husk from the heavier grain interior. Another example may be the need to separate stones of the same size as the particle to be treated.

Classification and Sifting of Sticky Products

For this sifting application, where it is necessary to classify sticky or high-fat content products, the most appropriate machine is our HVS Centrifugal Sifter.

Processed raw materials:

Grains and seeds

  • Wheat
  • Maize
  • Oats
  • Coffee
  • Cocoa
  • Rye
  • Beat
  • Rice
  • Girassol
  • Chickpeas
  • Soybeans
  • Peanuts
  • Peanuts
  • Spices


  • Balanced feed
  • Pellets or feeds
  • Crystalline sugar
  • Impalpable sugar
  • Cocoa
  • Coffee
  • Coriander
  • Curcuma
  • Gelatin
  • Bone meal
  • Fish flour
  • Milk powder
  • Dried beans
  • Bread crumbs
  • Batter

Chemicals and Minerals

  • Aluminum powder
  • Atrazine
  • Bentonite
  • Borax powder
  • Lime
  • Caolin
  • Activated carbon
  • Calcium carbonate
  • Cement
  • Shell
  • Quartz
  • Titanium Dioxide
  • Dolomite
  • Fertilizers
  • Monoammonium Phosphate
  • Diammonium Phosphate
  • Tricalcium Phosphate
  • Mica
  • Refractory Materials
  • Sodium naphthalenesulfonate
  • Pigments
  • Soaps
  • Salt
  • Precipitated silica
  • Caustic soda
  • Magnesium sulfate
  • Zinc sulfate
  • Tanine
  • Diatomaceous Earth
  • Dyes
  • Gypsum
  • Lithium

Grain milling

  • Afrecho and afrechillo
  • Wheat semolina and semolina
  • Semolina
  • Rebasillo
  • Zootechnical flour
  • Maize semolina
  • Semolina
  • Polenta
  • Wheat flour, corn flour, soy flour, etc.
  • Germ
  • Starch
  • Hull

Plastics and petrochemicals

  • Polycarbonate
  • Vinyl polyvinyl chloride or PVC
  • Polystyrene or PET
  • Polyethylene
  • Polypropylene
  • Expanded polystyrene (Styrofoam)


  • Sawdust
  • Wood
  • Cork
  • Soap poder
  • Pigments

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