Retsch Jaw Crusher BB 50
The Retsch Jaw Crusher BB 50 is a high-precision laboratory device that has been specially designed for coarse and preliminary crushing of medium-hard, hard, brittle and tough materials. It is used reliably in laboratories and industry wherever precise material analysis and safe sample preparation are essential - for example, in fields such as geology, metallurgy, the building materials industry or in biological and medical laboratory environments. Compared to larger devices, this model impresses with its compact design, exceptional user-friendliness and versatility in the selection of grinding tools. Compared to comparable systems, it offers outstanding reliability, high reproducibility and the possibility of heavy metal-free grinding. Precision and robustness for laboratories and industry
Developed on the basis of the latest technical standards, the BB 50 jaw crusher is a valuable tool for professional users. Its robust construction and intelligent functions not only ensure precise coarse and fine crushing, but also convenient and safe handling.
Key features
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Area of application: Coarse and preliminary grinding in laboratories and industrial environments, ideal for sample preparation
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Material compatibility: Medium-hard, hard, brittle and tough materials such as rock, ores, concrete, glass, ceramics, metals and biological samples
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Max. feed size: < 40 mm
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Final fineness: Up to < 0.5 mm (depending on sample material and setting)
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Grinding tool materials: Selectable, including manganese steel, stainless steel, tungsten carbide, zirconium oxide, steel 1.1750 (also for heavy metal-free grinding)
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Grinding gap adjustment: Infinitely variable 0 - 11 mm, precisely adjustable in 0.1 mm increments, digital display
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Safety and cleaning: Dust-proof housing (protection class IP 20), hinged hopper, easy cleaning, central lubrication, zero point adjustment
Other relevant technical details include a mouth width of 45 x 59 mm, a removable 3-litre collection container with compact overall dimensions of 420 x 460 x 560 mm and a net weight of approximately 79 kg. The powerful three-phase motor (1.1 kW) with frequency converter ensures smooth operation even with demanding samples, while the connection to different voltages allows flexible integration into laboratory networks. The built-in version (without drawer) opens up options for integration into more complex sample preparation systems. The standardised mains connection and compliance with CE directives ensure safe, standard-compliant operation.
Special features in focus
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Digital gap width display for maximum reproducibility and quick adjustment to the desired grain size spectrum
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Flexible material selection - the right tool material for every application
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Heavy metal-free grinding thanks to special grinding tools
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Permanent lubrication/central lubrication for long-lasting, low-maintenance operation
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Foldable hopper & dust-tight construction for maximum occupational safety
Standards and certifications
The BB 50 jaw crusher meets the requirements of current CE standards and complies with strict European guidelines on occupational safety, health and environmental protection. In particular, the IP 20 protection class guarantees that the device is protected against the ingress of foreign objects and dust and can be used in demanding laboratory environments without any problems.
Specific application examples
Professional users will find this model to be a versatile tool for a wide variety of materials. Typical application scenarios include:
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Building material testing: Crushing of sample materials such as concrete, brick and asphalt for quality control and building material evaluation.
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Geological and mineralogical analyses: Processing of rocks, ores and clay minerals for further analysis, including in exploration and raw material evaluation.
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Metal recycling and sample preparation: Crushing of iron, aluminium alloys and other metals for smelting, analysis or processing.
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Laboratory testing of glass/ceramics: Sample preparation of broken glass and porcelain for validation of material properties or pollutant analysis.
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Biological or medical laboratory samples: Pre-shredding of tissue material or pharmaceutical substances prior to further analysis, e.g. digestion processes
Substances such as quartz, limestone, basalt, bauxite, carbides, dental ceramics, cereal grains, pharmaceutical pellets and many other solid materials can be processed as standard samples.
FAQs on handling and product properties
How is the grinding gap precisely adjusted and why is this important?
The gap between the crushing jaws can be finely adjusted in 0.1 mm increments via a digital display. This ensures reproducible and exact particle sizes - a decisive advantage for analytical laboratory tasks and series measurements.
For which types of samples is this device recommended?
It is suitable for medium-hard to very hard, brittle and tough materials - including rocks, metals, ceramic products, glass, biological samples and various industrial materials.
What special features does the model have in terms of maintenance and operation?
Thanks to its permanently lubricated central lubrication system, the jaw crusher is particularly low-maintenance. A hinged, easily accessible hopper and dust-proof housing also facilitate cleaning and provide convenient access for sample collection.
What safety features and protection standards are integrated?
CE conformity and IP 20 protection provide comprehensive protection in everyday work. The safe zero point mechanism and the hinged hopper minimise the risk of injury during handling.
Conclusion
The BB 50 jaw crusher from Retsch is the precise, compact and extremely versatile solution for demanding laboratory and industrial applications that require safe and reproducible material reduction. Its versatility, robust construction and the option of heavy metal-free grinding make it the first choice for material analysis, quality testing and sample preparation of a wide variety of materials in high-end laboratories.
