Retsch SR 200 Impact Rotor Mill
The Retsch SR 200 impact rotor mill is a powerful laboratory mill for the efficient grinding and deagglomeration of soft to medium-hard materials. It has been specially developed for analytical laboratories and industrial applications in the fields of agriculture, building materials, chemistry, geology, food, medicine, pharmacy, environmental and recycling technology. Compared to other rotor mills on the market, this model stands out thanks to its excellent safety, outstanding service life and versatile adaptation options for a wide range of sample materials - aspects that are essential in both routine use and special research applications. Innovative technology and practical features
With its robust construction and precise technology, the Retsch SR 200 impact rotor mill is designed to make laboratory processes more efficient and safer. The device processes materials with a maximum grain size of < 15 mm and achieves final finenesses of less than 80 µm - ideal for demanding analytical or quality assurance procedures. The high rotor speed of 2,850 rpm at 50 Hz (3,420 rpm at 60 Hz) in combination with a variable sieve programme guarantees outstanding flexibility in terms of target grain size.
Important technical features at a glance:
- Processable sample materials: Soft, medium-hard (e.g. grain, ores, plastics)
- Comminution principle: Impact and shearing - efficient grinding for heterogeneous samples
- Feed particle size: < 15 mm; final fineness: < 80 µm (depending on sample)
- Screen sizes: Trapezoidal perforation (0.08-2.00 mm), round perforation (3.00-10.00 mm) for precise fractionation
- Collection container: Standard 5 l, optional up to 30 l - ideal for large or small test quantities
- Drive: Choice of single-phase or three-phase motor for flexible integration into the laboratory network
- Protection class: IP 54 - optimum protection against dust and splash water in the laboratory environment
Customised options for the material of the grinding tools offer additional protection against cross-contamination and wear - grinding chamber made of cast iron, rotor, ring sieves and sieve frame optionally made of stainless steel or chrome-plated.
High-quality workmanship for maximum service life
The impact rotor mill is characterised by its solid construction and ergonomic handling - all components are easily accessible and the device is easy to clean, which guarantees a high level of operational safety. The optional extension of the collection container makes the mill flexible for use in both individual and serial analyses. The device design minimises dead space and enables efficient sample collection.
Guaranteed safety and compliance
The device is manufactured in accordance with CE guidelines and thus complies with all relevant European safety and quality standards. Protection class IP 54 ensures that the electronics are optimally protected against the ingress of dust and water - essential for daily use in the demanding laboratory environment.
Typical applications and materials
Thanks to its versatility and reliability, the SR 200 impact rotor mill is suitable for a wide range of analytical and industrial applications. Proven fields of application include:
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Agricultural sector: Grinding and analysis of grain, maize, soya, seeds
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Building material testing: Sample preparation of cement, mortar and concrete for comprehensive material analysis
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Chemistry/polymers: Fine grinding of polymers, resins and aged plastics for quality control or research
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Geological investigations: Digestion and preparation of ores, minerals and sediments
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Food industry: Processing of sugar, starch, spices - e.g. for residue analysis or homogenisation
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Pharmaceuticals and medicine: Grinding of tablets and pharmaceutical powders for ingredient and active ingredient analysis
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Environmental technology/recycling: Processing of soil samples, household waste, recycled plastics
The flexible sieve inserts also allow particle size fractions to be specifically adjusted in order to optimally prepare for subsequent analytical procedures.
Frequently asked questions (FAQs)
What materials can be processed with the mill?
- Soft to medium-hard substances: e.g. grain, tablets, polymer granulates, gypsum, ores, sugar.
- The risk of contamination is reduced to a minimum thanks to different materials for grinding tools.
What sieve options are available?
- Trapezoidal holes: 0.08 to 2.00 mm
- Round holes: 3.00 to 10.00 mm
- This allows the end result to be optimally tailored to specified analysis parameters.
How is safety ensured in the laboratory?
- Protection class IP 54 protects against dust and splash water.
- The device complies with CE standards for maximum operational safety.
What sample quantity is the device designed for?
- Standard 5-litre collection container, optionally expandable to 30 litres - ideal for single and series analyses.
Conclusion
The Retsch SR 200 impact rotor mill is a precise and versatile solution for grinding and deagglomerating a wide variety of laboratory samples. Its robust design, variable sieve configuration, high processing speed and flexible drive options make it a valuable component in laboratories in the agricultural, building materials testing, chemical, food analysis, pharmaceutical, environmental technology and geological sectors. It complies with current safety standards and ensures efficient, contamination-free sample preparation in demanding research and quality control environments.
