# Retsch GmbH > Retsch (Haan, Germany, founded 1915 in Düsseldorf) develops and manufactures laboratory instruments for neutral-to-analysis sample preparation of solids: jaw crushers, rotor mills, cutting mills, knife mills, ball mills, disc mills and mortar grinders for size reduction, plus vibratory and horizontal sieve shakers, test sieves to ISO 3310 and ASTM E11, and evaluation software for particle size analysis by sieving. Assisting equipment covers sample dividers, pellet presses, feeders, fluid bed dryers and ultrasonic cleaning baths. Retsch instruments are used for quality control, research and development in laboratories that need representative, reproducible sample preparation before analysis. Retsch has been part of the Verder Group since 1989 and belongs to its Verder Scientific division; sales and service run through worldwide subsidiaries and more than 70 partners. Model codes: BB (jaw crushers), ZM/SR/SK/HM/TWISTER (rotor mills), SM (cutting mills), GM GRINDOMIX (knife mills), PM (planetary ball mills), MM (mixer mills), Emax (high energy ball mill), TM (drum mills), RS/DM (disc mills), RM (mortar grinder), AS (sieve shakers), PT/RT (sample dividers), PP (pellet press), DR (feeder), TG (dryer), UR (ultrasonic baths). This file covers the English website version, which is served from unprefixed URLs on retsch.com. The Chinese website version is published on a separate domain, retsch.cn, and has its own llms.txt; both are listed at the end of this file. ## Jaw Crushers for Primary Size Reduction - [Jaw Crushers](https://www.retsch.com/products/milling/jaw-crushers/): Category overview of the Retsch BB series for hard and brittle materials, with crushing ratios between 26 and 220. - [Jaw Crusher BB 50](https://www.retsch.com/products/milling/jaw-crusher/bb-50/): Benchtop model, feed size 40 mm, final fineness 0.5 mm, 3 l per batch, gap width 0 - 11 mm in 0.1 mm increments. - [Jaw Crusher BB 200](https://www.retsch.com/products/milling/jaw-crusher/bb-200/): Feed size 90 mm, final fineness 2 mm, throughput 300 kg/h; process-line and heavy-metal-free versions available. - [Jaw Crusher BB 250](https://www.retsch.com/products/milling/jaw-crusher/bb-250/): Feed size 120 x 90 mm, final fineness 2 mm, throughput 300 kg/h, gap width 0 - 30 mm; front door for cleaning. - [Jaw Crusher BB 300](https://www.retsch.com/products/milling/jaw-crusher/bb-300/): Feed size 130 mm, final fineness 5 mm, throughput 600 kg/h, gap width 1 - 40 mm stepless, drive power 3.0 kW. - [Jaw Crusher BB 400 XL](https://www.retsch.com/products/milling/jaw-crusher/bb-400/): Feed size 220 x 90 mm, final fineness 2 mm, throughput 400 kg/h, drive power 5.5 kW, crushing ratio 50. - [Jaw Crusher BB 500 XL](https://www.retsch.com/products/milling/jaw-crusher/bb-500/): Feed size 110 mm, 90% below 0.5 mm, throughput 500 kg/h, drive power 7.5 kW, crushing ratio 220. - [Jaw Crusher BB 600 XL](https://www.retsch.com/products/milling/jaw-crusher/bb-600/): Largest model, feed size up to 350 x 170 mm, final fineness down to 6 mm, throughput up to 3,500 kg/h, gap width 6 - 60 mm stepless. ## Rotor Mills for Soft to Medium-Hard Materials - [Rotor Mills](https://www.retsch.com/products/milling/rotor-mills/): Category overview of Retsch ultra centrifugal, rotor beater, cross beater, hammer and cyclone mills. - [Ultra Centrifugal Mill ZM 300](https://www.retsch.com/products/milling/rotor-mills/zm-300/): Feed size 10 mm, final fineness 40 µm, speed 6,000 - 23,000 min-1 freely selectable, ring sieves 0.08 - 10.00 mm. - [Rotor Beater Mill SR 300](https://www.retsch.com/products/milling/rotor-mills/sr-300/): Feed size 25 mm, final fineness 50 µm, speed 3,000 - 10,000 min-1, drive power 2.5 kW, collector 5 l or 30 l. - [Cross Beater Mill SK 300](https://www.retsch.com/products/milling/rotor-mills/sk-300/): Feed size 25 mm, final fineness 100 µm, speed 2,000 - 4,000 min-1, for medium-hard and brittle materials. - [Hammer Mill HM 200](https://www.retsch.com/products/milling/rotor-mills/hm-200/): Feed size 100 mm, final fineness 0.8 mm, speed 3,000 min-1, sieves 2 - 40 mm, drive power 1.5 kW. - [Cyclone Mill TWISTER](https://www.retsch.com/products/milling/rotor-mills/twister/): Feed size 10 mm, final fineness 250 µm, three speeds 10,000 / 12,000 / 14,000 min-1; designed for NIR sample preparation of foods and feeds. ## Cutting Mills and Knife Mills for Tough and Fibrous Samples - [Cutting Mills](https://www.retsch.com/products/milling/cutting-mills/): Category overview of the Retsch SM series for pre-cutting and fine grinding of tough, elastic and heterogeneous samples. - [Cutting Mill SM 50](https://www.retsch.com/products/milling/cutting-mills/sm-50/): Feed size 50 mm, final fineness 0.25 - 10 mm, speed 500 - 4,000 min-1, drive power 1.5 kW; first Retsch cutting mill with a removable grinding chamber. - [Cutting Mill SM 100](https://www.retsch.com/products/milling/cutting-mills/sm-100/): Feed size 60 x 80 mm, final fineness 0.25 - 20 mm, speed 1,500 min-1, drive power 1.5 kW; entry-level model with gravity outlet. - [Cutting Mill SM 200](https://www.retsch.com/products/milling/cutting-mills/sm-200/): Feed size 60 x 80 mm, final fineness 0.25 - 20 mm, speed 1,500 min-1, drive power 2.2 kW, double acting cutting bars. - [Cutting Mill SM 300](https://www.retsch.com/products/milling/cutting-mills/sm-300/): Feed size 60 x 80 mm, final fineness 0.25 - 20 mm, speed 100 - 3,000 min-1, drive power 3 kW with RES rotational energy storage technology. - [Knife Mills](https://www.retsch.com/products/milling/knife-mills/): Category overview of the Retsch GRINDOMIX GM series for homogenizing foods and feeds with high water, oil or fat content. - [Knife Mill GRINDOMIX GM 200](https://www.retsch.com/products/milling/knife-mills/gm-200/): Feed size 40 mm, final fineness 300 µm, speed 2,000 - 10,000 min-1 with 14,000 min-1 boost, batch volume up to 700 ml. - [Knife Mill GRINDOMIX GM 300](https://www.retsch.com/products/milling/knife-mills/gm-300/): Feed size approx. 130 mm, final fineness 300 µm, speed 500 - 4,000 min-1, batch volume up to 4,500 ml. ## Ball Mills for Fine and Nano Grinding - [Ball Mills](https://www.retsch.com/products/milling/ball-mills/): Category overview of Retsch mixer mills, planetary ball mills, high energy ball mills and drum mills, with grinding jars from 1.5 ml to 150 l and grinding balls from 0.1 mm to 40 mm. - [Mixer Mills](https://www.retsch.com/products/milling/mixer-mills/): Sub-category page explaining the Retsch mixer mill principle of radial oscillation and comparing the MM 400, MM 500 series and CryoMill. - [Planetary Ball Mills](https://www.retsch.com/products/milling/planetary-ball-mills/): Sub-category page explaining the Retsch planetary ball mill principle and comparing the PM 100, PM 200, PM 300 and PM 400. - [High Energy Ball Mills](https://www.retsch.com/products/milling/high-energy-ball-mills/): Sub-category page on high energy ball milling for grinding into the nanometre range with the Retsch Emax and MM 500 nano. - [Drum Mills](https://www.retsch.com/products/milling/drum-mills/): Sub-category page on the Retsch TM 300 and TM 500 drum mills for large sample volumes up to 35 l, with final fineness below 15 µm. - [High Energy Ball Mill Emax](https://www.retsch.com/products/milling/ball-mills/emax/): Feed size 5 mm, final fineness 80 nm, speed 300 - 2,000 min-1, two grinding stations, batch up to 2 x 45 ml, integrated water cooling. - [Mixer Mill MM 400](https://www.retsch.com/products/milling/ball-mills/mixer-mill-mm-400/): Feed size 8 mm, final fineness approx. 5 µm, frequency 3 - 30 Hz, two grinding stations, adapters for up to 20 samples per run. - [Mixer Mill MM 500 control](https://www.retsch.com/products/milling/ball-mills/mm-500-control/): Feed size 10 mm, final fineness approx. 0.1 µm, frequency 3 - 30 Hz, temperature control from -100 °C to +100 °C, jars pressure-tight to 5 bar. - [Mixer Mill MM 500 nano](https://www.retsch.com/products/milling/ball-mills/mm-500-nano/): Feed size 10 mm, final fineness approx. 0.1 µm, frequency 3 - 35 Hz, two grinding stations, jars 10 - 125 ml. - [Mixer Mill MM 500 vario](https://www.retsch.com/products/milling/ball-mills/mm-500-vario/): Feed size 8 mm, final fineness approx. 5 µm, frequency 3 - 35 Hz, six grinding stations, adapters for up to 50 x 2 ml single-use vials. - [CryoMill](https://www.retsch.com/products/milling/ball-mills/mixer-mill-cryomill/): Feed size 8 mm, final fineness approx. 5 µm, frequency 5 - 30 Hz, one grinding station, continuous liquid nitrogen cooling at -196 °C. - [Planetary Ball Mill PM 100](https://www.retsch.com/products/milling/ball-mills/planetary-ball-mill-pm-100/): Feed size 10 mm, final fineness 1 µm and 0.1 µm for colloidal grinding, sun wheel speed 100 - 650 min-1, one grinding station, batch up to 220 ml. - [Planetary Ball Mill PM 200](https://www.retsch.com/products/milling/ball-mills/planetary-ball-mill-pm-200/): Final fineness 1 µm and 0.1 µm for colloidal grinding, sun wheel speed 100 - 650 min-1, two grinding stations, batch up to 2 x 50 ml. - [Planetary Ball Mill PM 300](https://www.retsch.com/products/milling/ball-mills/planetary-ball-mill-pm-300/): Feed size 10 mm, final fineness 1 µm and 0.1 µm for colloidal grinding, sun wheel speed 50 - 800 min-1, two grinding stations, batch up to 2 x 220 ml. - [Planetary Ball Mill PM 400](https://www.retsch.com/products/milling/ball-mills/planetary-ball-mill-pm-400/): Feed size 10 mm, final fineness 1 µm and 0.1 µm for colloidal grinding, sun wheel speed 30 - 400 min-1, four grinding stations, batch up to 4 x 220 ml, floor model. - [Drum Mill TM 300](https://www.retsch.com/products/milling/ball-mills/tm-300/): Final fineness 20 µm, rotation speed 1 - 80 min-1, drums 5 / 10 / 21.7 / 43.3 l, batch 1 - 20 l; convertible between ball mill and rod mill and used for Bond Index testing. - [Drum Mill TM 500](https://www.retsch.com/products/milling/ball-mills/tm-500/): Final fineness 15 µm, rotation speed 10 - 50 min-1, 150 l grinding drum with 80 kg grinding balls, batch up to 35 l, long-term grinding up to 100 h. - [XRD-Mill McCrone](https://www.retsch.com/products/milling/ball-mills/mccrone-xrd-mill/): Feed size 0.5 mm, final fineness 1 µm, speed 1,000 - 1,500 min-1 in four steps; 48 cylindrical grinding elements grind by friction to preserve the crystal lattice for X-ray diffraction. - [Measuring System GrindControl](https://www.retsch.com/products/milling/ball-mills/grindcontrol/): Pressure and temperature measurement inside the grinding jar, gas pressure 0 - 500 kPa, temperature -20 °C to +100 °C, five measurements per second via Bluetooth; available for planetary ball mills, Emax and MM 500 nano/control. ## Disc Mills and Mortar Grinders for Analytical Fineness - [Disc Mills](https://www.retsch.com/products/milling/disc-mills/): Category overview of the Retsch RS vibratory disc mills and the DM 200 disc mill for fine grinding of hard, brittle materials. - [Disc Mill DM 200](https://www.retsch.com/products/milling/disc-mills/dm-200/): Feed size 20 mm, final fineness 50 µm with hardened steel discs or 100 µm with tungsten carbide or zirconium oxide discs, speed 440 min-1, gap width 0.05 - 5 mm. - [Vibratory Disc Mill RS 200](https://www.retsch.com/products/milling/disc-mills/rs-200/): Feed size 15 mm, final fineness 20 µm, speed 700 - 1,500 min-1, batch 15 - 250 ml; typical grinding times of 60 - 180 s for spectral analysis sample preparation. - [Vibratory Disc Mill RS 300 XL](https://www.retsch.com/products/milling/disc-mills/rs-300/): Feed size 20 mm, final fineness 20 µm, speed 912 min-1, batch 35 - 2,000 ml, grinding sets up to 30 kg with pneumatic clamping. - [Mortar Grinder RM 200](https://www.retsch.com/products/milling/mortar-grinders/rm-200/): Final fineness 10 µm, speed 100 min-1, batch 10 - 190 ml, grinding chamber 700 ml; suitable for dry, wet and cryogenic grinding with adjustable pestle and scraper pressure. - [Mill Product Selection Guide](https://www.retsch.com/products/milling/product-selection-guide/): Selection tool that matches a Retsch mill to feed material, feed size and required final fineness. ## Sieving: Sieve Shakers, Test Sieves and Evaluation Software - [Sieving](https://www.retsch.com/products/sieving/): Category overview of Retsch particle size analysis by sieving, covering sieve shakers, test sieves and evaluation software. - [Sieve Shakers](https://www.retsch.com/products/sieving/sieve-shakers/): Comparison of the Retsch AS series across vibratory, horizontal, tap and air jet sieving principles. - [Vibratory Sieve Shaker AS 200 basic](https://www.retsch.com/products/sieving/sieve-shakers/as-200-basic/): Measuring range 20 µm - 25 mm, amplitude 1 - 100% (0 - 3 mm), batch up to 3 kg, sieve diameters 100 / 200 / 203 mm. - [Vibratory Sieve Shaker AS 200 control](https://www.retsch.com/products/sieving/sieve-shakers/as-200-control/): Measuring range 20 µm - 25 mm, controlled amplitude 0.20 - 3.00 mm, sieve acceleration 1.0 - 15.1 g, 99 SOPs, dry and wet sieving. - [Vibratory Sieve Shaker AS 200 digit cA](https://www.retsch.com/products/sieving/sieve-shakers/as-200-digit-ca/): Measuring range 20 µm - 25 mm, amplitude 0.20 - 3.00 mm, batch up to 3 kg, one storable SOP; complies with Ph. Eur. 2.9.12 and 2.9.38. - [Vibratory Sieve Shaker AS 300 control](https://www.retsch.com/products/sieving/sieve-shakers/as-300-control/): Measuring range 20 µm - 40 mm, amplitude 0.20 to over 2.20 mm, batch up to 6 kg, sieve diameters up to 315 mm. - [Horizontal Sieve Shaker AS 400 control](https://www.retsch.com/products/sieving/sieve-shakers/as-400-control/): Measuring range 45 µm - 63 mm, horizontal circular motion at 50 - 300 min-1, batch up to 5 kg, sieve diameters up to 400 mm; suited to needle-shaped and flat particles. - [Vibratory Sieve Shaker AS 450 basic](https://www.retsch.com/products/sieving/sieve-shakers/as-450-basic/): Measuring range 25 µm - 125 mm, amplitude 1 - 100% in 10 steps (0 - 2 mm), batch up to 15 kg, sieve diameters 400 / 450 mm. - [Vibratory Sieve Shaker AS 450 control](https://www.retsch.com/products/sieving/sieve-shakers/as-450-control/): Measuring range 25 µm - 125 mm, amplitude 0.2 to over 2.2 mm with Continuous Energy Transfer drive, batch up to 25 kg, sieve diameters 400 / 450 mm. - [Tap Sieve Shaker AS 200 tap](https://www.retsch.com/products/sieving/sieve-shakers/as-200-tap/): Measuring range 20 µm - 25 mm, horizontal circular motion at 280 min-1 with 150 taps per minute, dry sieving only; meets standards that prescribe tap sieving. - [Air Jet Sieving Machine AS 200 jet](https://www.retsch.com/products/sieving/sieve-shakers/as-200-jet/): Measuring range 10 µm - approx. 4 mm, nozzle speed 5 - 55 min-1, batch 0.3 - 100 g, typical sieving time 2 - 3 min; for fine powders that agglomerate in stack sieving. - [Air Jet Sieving Machines AS 200 Jet Pro and AS 200 Jet Pharma](https://www.retsch.com/products/sieving/sieve-shakers/as-200-jet-pro-pharma/): Measuring range 10 µm - approx. 4 mm, nozzle speed 5 - 80 min-1, integrated balance reading 0.01 g, 10.1" touch screen, more than 40 SOPs. - [Test Sieves](https://www.retsch.com/products/sieving/test-sieves/): Woven wire mesh sieves from 20 µm to 125 mm to ISO 3310-1 and ASTM E11, and perforated plate sieves from 1 mm to 125 mm to ISO 3310-2 and ISO 5223, in diameters 100 / 200 / 203 / 305 / 400 / 450 mm. - [Test Sieve Accessories and SieveCare](https://www.retsch.com/products/sieving/test-sieves/sieves-accessories/): Sieve accessories and the Retsch SieveCare programme for cleaning, inspection and recalibration of test sieves. - [Evaluation Software EasySieve](https://www.retsch.com/products/sieving/evaluation-software/): EasySieve pro and EasySieve pharma control Retsch AS sieve shakers and calculate particle size distributions; the pharma version adds ISPE GAMP 5, EC GMP Annex 11 and FDA 21 CFR Part 11 audit trails. ## Assisting Equipment for Sample Handling - [Assisting Equipment](https://www.retsch.com/products/assisting/): Category overview of Retsch sample dividers, pellet presses, feeders, dryers and cleaning equipment. - [Sample Dividers PT and RT](https://www.retsch.com/products/assisting/sample-divider/): Rotating sample dividers PT 100, PT 200 and PT 300 for feed sizes up to 30 mm with 1 to 10 divisions, and RT sample splitters with slot widths from 6.5 mm to 108 mm. - [Pellet Press PP 40](https://www.retsch.com/products/assisting/pellet-presses/pp-40/): Automatic press with pressure force 0 - 40 t (1 - 400 kN), holding time 1 - 99 s, 10 stored parameter combinations; produces pellets for X-ray fluorescence analysis from samples below 100 µm. - [Vibratory Feeder DR 100](https://www.retsch.com/products/assisting/feeder/): Continuous feed of bulk material at 0 - 5 l/min, feed size 2 - 12 mm depending on chute width, chute widths 15 / 40 / 75 mm, hopper 2.8 l or 3.5 l. - [Fluid Bed Dryer TG 200](https://www.retsch.com/products/assisting/dryer/): Drying of samples above 100 µm at 40 - 130 °C with 185 m3/h volume flow, typical drying time 5 - 20 min, container 1 x 6 l or 3 x 0.3 l. - [Ultrasonic Baths UR 1, UR 2 and UR 3](https://www.retsch.com/products/assisting/cleaner/): Ultrasonic cleaning of test sieves at 35 kHz, tank volumes 5.7 l, 42 l and 45 l, holding one to five sieves depending on model. ## Applications and Industries - [Applications Overview](https://www.retsch.com/applications/overview/): Entry point to Retsch sample preparation solutions by industry and sample type. - [Battery Technology](https://www.retsch.com/applications/battery-technology/): Grinding and homogenizing of electrode materials, cathode and anode powders and solid electrolytes for battery research and production control. - [Cell Disruption and Biological Samples](https://www.retsch.com/applications/cell-disruption-biological-samples/): Mechanical cell disruption and tissue homogenization with Retsch mixer mills for DNA, RNA and protein extraction. - [Cannabis Products](https://www.retsch.com/applications/cannabis-products-sample-preparation-for-quality-control/): Sample preparation of cannabis flowers, extracts and edibles for potency, pesticide and residual solvent testing. - [Green Cement and Sustainable Cement Technology](https://www.retsch.com/applications/green-cement-sustainable-cement-technology/): Sample preparation for clinker substitutes, supplementary cementitious materials and alternative fuels. - [Food and Feed Analysis](https://www.retsch.com/applications/food/): Homogenization of foods and feeds with high water, fat or fibre content ahead of nutritional, contaminant and NIR analysis. - [Geology and Mining](https://www.retsch.com/applications/geology-mining/): Multi-stage crushing and grinding of rock, ore and drill core for XRF, XRD and fire assay. - [Mechanochemistry](https://www.retsch.com/applications/mechanochemistry/): Solvent-free chemical synthesis in Retsch ball mills, including reaction monitoring with GrindControl. - [Mechanical Alloying](https://www.retsch.com/applications/mechanical-alloying/): Production of alloys and composite powders by high energy ball milling in planetary ball mills and the Emax. - [Pharma and MedTech](https://www.retsch.com/applications/pharma-and-medtech/): Sample preparation and particle size analysis for pharmaceutical quality control, including Ph. Eur. compliant sieving. - [Recycling and Waste Management](https://www.retsch.com/applications/recycling-and-waste-management/): Size reduction of engineered materials, bio-based materials and mineral resources for recycling process and quality control. - [Application Database](https://www.retsch.com/applications/application-database-retsch/): Searchable database of tested Retsch grinding and sieving methods by sample material and target fineness, selected from more than 25,000 test grindings and particle analyses. - [Application Laboratory](https://www.retsch.com/applications/application-laboratory/): Free sample grinding and sieving trials carried out by Retsch application specialists, with a written report and instrument recommendation. ## Knowledge Base: Methods and Fundamentals - [Knowledge Base](https://www.retsch.com/applications/knowledge-base/): Technical articles on size reduction and sieving principles, standards and method selection. - [What is sieve analysis and how is it performed?](https://www.retsch.com/applications/knowledge-base/sieve-analysis/): Explains sieve analysis as a particle size distribution method, the sieving principles, relevant standards and sources of error. - [What is air jet sieving and when should it be used?](https://www.retsch.com/applications/knowledge-base/air-jet-sieving/): Describes the air jet sieving principle for fine powders below 100 µm and compares it with vibratory stack sieving. - [How does a planetary ball mill work?](https://www.retsch.com/applications/knowledge-base/planetary-mill/): Explains the planetary ball mill principle, the effect of sun wheel and jar rotation, speed ratio, and the choice of jar and ball material. - [How are samples prepared cryogenically?](https://www.retsch.com/applications/knowledge-base/cryogenic-preparation-of-sample-materials/): Explains cryogenic grinding with liquid nitrogen and dry ice for elastic, temperature-sensitive and volatile samples. - [Which Retsch mill suits which material?](https://www.retsch.com/applications/knowledge-base/material-list/): Material list linking sample types to the recommended Retsch mill, grinding tools and achievable final fineness. ## Service and Support - [Contact and Services](https://www.retsch.com/contact-services/): Contact finder by country for Retsch subsidiaries, distributors and service partners. - [Technical Service](https://www.retsch.com/contact-services/technical-service/): Maintenance, repair, calibration, qualification, spare parts and service contracts for Retsch instruments. - [Contact and Quote Form](https://www.retsch.com/contact-services/contact-form/): General inquiries and quote requests, routed to the responsible Retsch subsidiary or distributor. - [Service Form](https://www.retsch.com/contact-services/service-form/): Structured service request for instruments already in use. - [Product Demonstration](https://www.retsch.com/contact-services/product-demonstration/): Request an on-site or in-house demonstration of a Retsch instrument. - [Online Product Demo](https://www.retsch.com/contact-services/online-product-demo/): Request a live online demonstration of a Retsch instrument with an application specialist. - [Software License Activation](https://www.retsch.com/contact-services/license-activation/): Activation of licenses for Retsch evaluation software. ## Company - [About Retsch](https://www.retsch.com/company/): Company profile and dated history covering more than 100 years of innovation from the 1915 founding in Düsseldorf, through joining the Verder Group in 1989, to the current Haan headquarters. - [Code of Business Principles](https://www.retsch.com/company/code-of-conduct/): Verder Group code of business principles applying to Retsch. - [Jobs and Careers](https://www.retsch.com/company/jobs/): Open positions at Retsch and within Verder Scientific. - [Company Video](https://www.retsch.com/company/company-video/): Video introduction to Retsch, its production site and product range. - [Retsch on LinkedIn](https://www.linkedin.com/company/retsch-gmbh): Official company profile. ## Documents and Downloads - [Downloads](https://www.retsch.com/downloads/): Entry point to all downloadable Retsch material. - [Brochures](https://www.retsch.com/downloads/brochures/): Product brochures and technical data sheets by instrument family. - [Application Reports](https://www.retsch.com/downloads/application-reports/): Documented grinding and sieving trials with sample material, instrument, parameters and results. - [Operating Instructions](https://www.retsch.com/downloads/operating-instructions/): Manuals for Retsch mills, sieve shakers and assisting equipment. - [Grinding Jars and Grinding Tools](https://www.retsch.com/downloads/grinding-jars/): Documentation for grinding jars and balls in stainless steel, tungsten carbide, agate, zirconium oxide and other materials. - [Videos](https://www.retsch.com/downloads/videos/): Instrument demonstrations and application videos. - [Certificates and Conditions](https://www.retsch.com/downloads/miscellaneous/): ISO certificates, declarations of conformity and further documents. ## News and Events - [Latest News](https://www.retsch.com/news/): Product launches, application news and company announcements. - [Dates and Events](https://www.retsch.com/news/dates-events/): Trade show and conference calendar with dates, cities and booth numbers. - [Seminars and Webinars](https://www.retsch.com/news/seminars-webinars/): Live seminars, webinars and on-demand webinar recordings on sample preparation and sieving. - [Newsletter Registration](https://www.retsch.com/news/newsletter/): Subscription to the Retsch newsletter. ## Language Versions - [llms.txt for the English website version](https://www.retsch.com/llms.txt): This file. Global English version, served from unprefixed URLs on retsch.com. - [llms.txt for the Chinese website version](https://www.retsch.cn/llms.txt): Chinese version, published on the separate domain retsch.cn under /cn/, content described in Chinese. - [llms.txt for the German website version](https://www.retsch.com/de/llms.txt): German version, content described in German. - [llms.txt for the French website version](https://www.retsch.com/fr/llms.txt): French version, content described in French. - [llms.txt for the Spanish website version](https://www.retsch.com/es/llms.txt): Spanish version, content described in Spanish. - [llms.txt for the Italian website version](https://www.retsch.com/it/llms.txt): Italian version, content described in Italian. - [llms.txt for the Portuguese website version](https://www.retsch.com/pt/llms.txt): Portuguese version, content described in Portuguese. - [llms.txt for the Dutch website version](https://www.retsch.com/nl/llms.txt): Dutch version, content described in Dutch. - [llms.txt for the Polish website version](https://www.retsch.com/pl/llms.txt): Polish version, content described in Polish. - [llms.txt for the Czech website version](https://www.retsch.com/cz/llms.txt): Czech version, content described in Czech. - [llms.txt for the Slovak website version](https://www.retsch.com/sk/llms.txt): Slovak version, content described in Slovak. - [llms.txt for the Hungarian website version](https://www.retsch.com/hu/llms.txt): Hungarian version, content described in Hungarian. - [llms.txt for the Romanian website version](https://www.retsch.com/ro/llms.txt): Romanian version, content described in Romanian. - [llms.txt for the Bulgarian website version](https://www.retsch.com/bg/llms.txt): Bulgarian version, content described in Bulgarian. - [llms.txt for the Turkish website version](https://www.retsch.com/tr/llms.txt): Turkish version, content described in Turkish. - [llms.txt for the Russian website version](https://www.retsch.com/ru/llms.txt): Russian version, content described in Russian. - [llms.txt for the Japanese website version](https://www.retsch.com/jp/llms.txt): Japanese version, content described in Japanese. - [llms.txt for the Korean website version](https://www.retsch.com/kr/llms.txt): Korean version, content described in Korean. ## Optional - [Imprint](https://www.retsch.com/siteservice/imprint/): Legal notice with registered address, contact details and register information for Retsch GmbH. - [Privacy Policy](https://www.retsch.com/siteservice/privacy-policy/): Data protection information. - [Terms and Conditions](https://www.retsch.com/siteservice/terms-conditions/): Terms of sale, delivery and service. - [Product Security](https://www.retsch.com/siteservice/product-security/): Product security and vulnerability disclosure information for Retsch instruments and software.