Laboratory Mills, Grinders and Crushers
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Laboratory Mills, Grinders & Crushers

For chemical and physical analytical methods such as AAS, NIR, ICP or XRF it is essential that the specimen is perfectly homogenized to an adequate degree of analytical fineness. A reliable and accurate analysis can only be guaranteed by reproducible sample preparation.

For these tasks RETSCH offers a comprehensive range of the most modern mills and crushers for coarse, fine and ultrafine size reduction of almost any material. The choice of grinding tools and accessories ensures that our instruments provide for contamination-free and reliable sample preparation prior to laboratory analysis.


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Jaw Crushers

For efficient primary size reduction. The RETSCH Jaw Crusher range is used for the rapid, powerful crushing and pre-crushing of mediumhard, hard, brittle and tough materials. The variety of materials offered, their efficiency and safety make them ideal for sample preparation in laboratories and industrial plants.


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Rotor Mills

Fine grinding with variable speed. The rotor mill series includes Ultra Centrifugal Mills, Rotor Beater Mills and Cross Beater Mills. Depending on the particular instrument they are suitable for the preliminary and fine size reduction of soft, fibrous and also hard materials.


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Cutting Mills

For pre-cutting and fine grinding. RETSCH cutting mills provide highly efficient primary size reduction of heterogeneous material mixes but are also suitable for grinding soft, medium-hard, elastic or fibrous samples. Cuttings mills offer a high level of operational safety and convenience. The wide selection of accessories allows for easy adaptation to different application requirements.


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Knife Mills

Sample homogenization with high reproducibility. RETSCH knife mills provide completely homogeneous and reproducible size reduction results in seconds so that representative samples can be taken from any location in the grinding container.


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Mortar Grinder

The Mortar Grinder RM 200 can mix and homogenize powders, suspension and pastes, even for samples with high viscosity. The RM 200 is suitable for the proper and reproducible sample preparation to analytical fineness. The sample grinder substitutes cumbersome hand mortars by a high performance drive with electronic control. The grinding set can be cooled and heated and is very easy to clean. Grinding sets of various material qualities are available which can be exchanged easily for optimum adaptation to various grinding tasks.

Sieving
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Sieving

Particle size analysis according to DIN EN ISO 9000 ff. Particle size distribution influences the physical and chemical properties of solids. Therefore this criterion is of highest importance in the context of science and quality control.

Only if the size distribution remains constant, a steady product quality can be guaranteed, as the following examples show:

  • the strength of concrete depends on the particle size of the cement
  • the taste of chocolate is influenced by the fineness of the cocoa 
  • the flow characteristics and solubility of washing powders depend on the fineness and particle shape of the basic materials

 

RETSCH sieve shakers, test sieves and evaluation software provide the key to easy, rapid, reproducible and, above all, accurate analyses.


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Sieve Shakers

For particle size determination of bulk materials. RETSCH sieve shakers and sieving machines not only covers a wide measuring range. Thanks to different sieving motions and sieve sizes, the RETSCH sieve shaker range is suitable for almost any bulk material. Our sieve shakers and sieving machines produce exact and reproducible results and comply with the requirements for the test materials monitoring according to DIN EN ISO 9000 ff.


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Test Sieves

Highest precision for accurate sieve analysis. The well-proven RETSCH test sieves consist of a solid stainless steel sieve frame of high stability for reliable sieving results. Paying close attention to mesh-specific requirements, the fabric of each test sieve is precisely joined into the frame and tautened. The individual laser engraving of each test sieve provides a clear labeling with full traceability.

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About Retsch

RETSCH’s philosophy is based on customer orientation and leading edge technology. This is reflected in instruments whose high-quality components are designed for perfect interaction. RETSCH products not only guarantee representative and reproducible results for grinding and particle analysis but also allow for easy and comfortable operation.