Retsch Mixer Mill MM 400, 100–240 V, 50/60 Hz, with quick release clamp (please order grinding jars and balls separately)
A ball mill for powerful size reduction and homogenization
RETSCH ball mills are available as mixer mills as well as planetary ball mills.
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.
RETSCH’s innovative Planetary Ball Mills meet and exceed all requirements for fast and reproducible grinding down to the nano range. They are used for the most demanding tasks, from routine sample processing to colloidal grinding and advanced materials development.
The High Energy Ball Mill Emax is an entirely new type of mill for high energy input. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time.
|Applications||size reduction, mixing, homogenization, cell disruption, cryogenic grinding|
|Field of application||agriculture, biology, chemistry / plastics, construction materials, engineering / electronics, environment / recycling, food, geology / metallurgy, glass / ceramics, medicine / pharmaceuticals|
|Feed material||hard, medium-hard, soft, brittle, elastic, fibrous|
|Size reduction principle||impact, friction|
|Material feed size*||≤ 8 mm|
|Final fineness*||~ 5 µm|
|Batch size / feed quantity*||max. 2 x 20ml|
|No. of grinding stations||2|
|Setting of vibrational frequency||digital, 3 - 30 Hz (180 - 1800 min-1)|
|Typical mean grinding time||30 s - 2 min|
|Cell disruption with reaction vials||yes, up to 20 x 2.0 ml|
|Self-centering clamping device||yes|
|Type of grinding jars||screw top design|
|Material of grinding tools||hardened steel, stainless steel, tungsten carbide, agate, zirconium oxide, PTFE|
|Grinding jar sizes||1.5 ml / 5 ml / 10 ml / 25 ml / 35 ml / 50ml|
|Setting of grinding time||digital, 10 s - 99 min|
|Electrical supply data||100-240 V, 50/60 Hz|
|Protection code||IP 30|
|Power consumption||150 W|
|W x H x D closed||371 x 266 x 461 mm|
|Net weight||~ 26 kg|
The grinding jars of the MM 400 perform radial oscillations in a horizontal position. The inertia of the grinding balls causes them to impact with high energy on the sample material at the rounded ends of the grinding jars and pulverize it. Also, the movement of the grinding jars combined with the movement of the balls result in the intensive mixing of the sample.
The degree of mixing can be increased even further by using several smaller balls. If several small balls are used (e.g. glass beads) then, for example, biological cells can be disrupted. The large frictional impact effects between the beads ensure effective cell disruption.
Subject to technical modifications and errors
The mixer mill MM 400 is a compact versatile bench-top unit, which has been developed specially for dry, wet and cryogenic grinding of small amounts of sample.
It can mix and homogenize powders and suspensions in only a few seconds. It is also perfectly suitable for the disruption of biological cells as well as for DNA/RNA and protein extraction. With its high performanceand great flexibility the mixer mill MM 400 is a unique product in the market.
You may also be interested in the High Energy Ball Mill Emax, an entirely new type of mill for high energy input. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time.
alloys, animal feed, bones, ceramics, cereals, chemical products, coal, coke, drugs, electronic scrap, glass, grains, hair, minerals, oil seeds, ores, paper, plant materials, plastics, sewage sludge, soils, straw, tablets, textiles, tissue, tobacco, waste samples, wood, wool, ... continue to application database
- reproducible, efficient grinding, mixing and homogenization in seconds
- powerful grinding by impact and friction, up to 30 Hz for up to 20 samples per run
- 3 different grinding modes (dry, wet or cryogenic)
- screw-top grinding jars for leak-proof grinding
- 9 SOPs can be stored
- wide range of accessories including various jar and ball sizes, adapter racks for single use vials and tubes, grinding tool materials, CryoKit
- efficient cell disruption of max. 240 ml cell suspension for DNA/RNA- and protein extraction