with Mixer Mills Solutions in Milling & Sieving

MIXER MILLS Mixer Mills The RETSCH Mixer Mills grind and homogenize small sample volumes quickly and efficiently by impact and friction. They are suitable for dry, wet and cryogenic grinding as well as for cell disruption for DNA/RNA recovery. 2

- Rotor Mills - Cutting Mills - Knife Mills - Mortar Grinders - Disc Mills - Mixer Mills - Planetary Ball Mills Mixer Mills - Selection guide / technical data 10 RETSCH Mixer Mills are used for the pulverization of hard, medium-hard, soft, brittle, elastic and fibrous materials. The sample feed size depends on the mill and can be as large as 8 mm. If the feed size is larger than this then the sample must first undergo preliminary size reduction. Planetary Ball Mills Preliminary size reduction Fine size reduction with impact and friction can also be carried out with RETSCH Planetary Ball Mills....

MIXER MILLS The main areas of application for cereals, grain, oil seeds, soils, straw, tobacco, wood bones, hair, plant and animal tissues Environmental research compost, electronic scrap, sewage sludge animal feed, cheese, fruit Forensic sciences drugs, tablets alloys, coal, minerals The RETSCH Mixer Mills are used for size reduction and pulverization of small volumes of hard, medium-hard and brittle samples as well as for soft, elastic or fibrous ones. Thanks to the high energy input, grinding times are usually very short. The CryoMill is ideal for grinding temperature-sensitive materials and...

Thermally-sensitive and elastic substances can be successfully processed by cooling with liquid nitrogen. The CryoMill is an impact ball mill specifical- ly designed for cryogenic grinding. It fea- tures an integrated cooling system which continually cools the grinding jar with liquid nitrogen before and during the grinding pro cess. Thus the sample is embrittled and volatile components are preserved. ■ Fast, efficient cryogenic ■ Ideal for plastics, temperature- sensitive materials and samples with volatile components ■ Particularly safe due to autofill system for liquid nitrogen ■ Highly reproducible...

Grinding jars and accessories Grinding jars The screw-top grinding jars of hardened steel and stainless steel have been specially designed for use in the CryoMill. The fact that no sample material can escape makes them particularly safe. They are available with vol- 50 ml (5). For applications where steel jars cannot be used due to possible sample contamination, RETSCH of- fers a 25 ml grinding jar of zirconium oxide and matching grinding balls. Grinding jars of PTFE are also available. Various adapters make the CryoMill a versatile instru- ment. If only very small sample amounts need to be pro-...

Performance data For safe and comfortable opera- tion of the CryoMill, RETSCH pro- vides an autofill system for liquid nitrogen which is available with a It is also possible to connect existing cryo tanks to the mill. For. For such applications, a connection tube with safety valve is available. Feed material Feed size* Final fineness* Batch/Sample volume Typical mean grinding time Possible applications Cryogenic grinding Cell disruption with reaction vials Suitable grinding jars Digital preselection of vibrational frequency Digital preselection of grinding time Memory for parameter combinations...

MIXER MILLS Mixer Mills MM 200 and MM 400 Grinding, mixing, disrupting small amounts of sample RETSCH Mixer Mills MM 200 and MM 400 are laboratory “all-rounders”. They have been developed specially for grinding, homogenizing and mixing of small sample amounts quickly and efficiently. They are also perfectly suitable for the disruption of biological cells as well as for DNA/RNA extraction. The MM 400 can also be used for wet and cryogenic grinding. nders” The “all-rou tory in the labora MM 200 Benefits at a glance High-performance Mixer Mills ■ Quick, efficient pulverization and homogenization...

MIXER MILLS Both mills are particularly easy to set accurately from 3 to 25/30 hertz. An electronic speed control keeps this value constant during the entire grinding process. The grinding time can be preset digitally in the range from 10 seconds to 99 minutes. All instrument parameters are retained during standby operation for subse- quent processes. Up to 9 parameter combinations can be stored. This en- sures the highest degree of reproduc- ibility for the following sample prepa- ration processes. The screw-top grinding jars provide the ideal preconditions for wet grind- ing with Mixer Mills....

MIXER MILLS Selection guide for Mixer Mills size reduction of small amounts of The MM 400, with higher energy, can The CryoMill is designed for grinding Performance data Feed material Feed size* Final fineness* Batch/Sample volume Typical mean grinding time Possible applications: Cryogenic grinding Cell disruption with reaction vials Mixing with conical centrifuge tubes Suitable grinding jars Grinding jar with push-fit lids Grinding jars with screw-top lids Self-centering clamping device Digital preselection of vibrational frequency Digital preselection of grinding time Memory for parameter combinations...

MIXER MILLS Grinding jars and grinding balls for versatile use The grinding result is greatly influenced by the grinding tools. The choice of jar volume, ball charge and material depends on the type and amount of sample. In order not to falsify the subsequent analytical determination, a neutral-to-analysis material should be selected. The pulverization energy is determined by the density and weight of the ball material. The higher the ball weight and density, the higher the pulverization energy. The jar and balls should always be made of the same material. The table shown below is intended to...

MIXER MILLS Mixer Mills order data Grinding jars MM 200, with push-fit lid Hardened steel Stainless steel Tungsten carbide Zirconium oxide MM 400 with quick-clamping device (please order grinding jars and grinding balls separately) Grinding jars MM 400, screw top design 1.5 ml 5 ml 10 ml 25 ml Jar wrench for grinding jars, 1 pair CryoKit for cooling grinding jars with liquid nitrogen Grinding balls Hardened steel Stainless steel Tungsten carbide Zirconium oxide PTFE with steel core Accessories for mixing with MM 200 and MM 400 Adapter for 4 conical centrifuge tubes (e.g. Falcon Tubes), 2 pieces,...