The new Mixer Mill MM 500 vario is a versatile bench-top unit which provides ultimate performance with maximum flexibility for your sample preparation process. It is used for dry, wet and cryogenic grinding of small sample amounts with high throughput. The MM 500 vario can be equipped with screw-top grinding jars from 1.5 ml to 50 ml. Available materials include hardened steel, stainless steel, tungsten carbide, agate, zirconium oxide, PTFE.
For biological applications such as homogenization of plant materials, tissues or for cell disruption via bead beating, the MM 500 vario can be equipped with different adapters for single-use vials from 0.2 - 5 ml.
Mixer mills are widely used for homogenizing biological samples such as tissue, liver, muscle, plants, corn or sputum. For cell disruption via bead beating mixer mills are also the perfect solution.
The MM 500 vario accommodates adapters for different single-use vials:
0.2 ml / 1.5 ml / 2 ml / 5 ml
Depending on the tube and the type of adapter, 5-10 tubes can be inserted per adapter, resulting in the following maximum vial capacity per batch:
50 x 1.5 or 2 ml (or 60 x 0.2 ml)
20 x 5 ml
Typical grinding / homogenizing processes of biological materials take less than 2 min. Cell disruption with a good reproducibility and efficiency takes 20 sec to 5 min, depending on the cell type. Cryogenic grinding in single-use vials can also be a suitable way to pulverize tough or temperature-sensitive samples.
Grinding of basalt in the MM 500 vario results in better fineness compared to classic Mixer Mills thanks to the increased frequency of 35 Hz instead of 30 Hz (50 ml jar + 12 x 12 mm grinding balls).
All grinding jars of the smaller MM 400 model are compatible with the MM 500 vario. The nominal volume ranges from 1.5 ml to 50 ml and available materials include hardened steel, stainless steel, agate, tungsten carbide, zirconium oxide and PTFE, ensuring contamination-free sample preparation.
The adapters for 0.5 / 1.5 / 2 / 5 ml single-use vials of the smaller MM 400 model can be used in the MM 500 vario.
RETSCH mixer mills are true allrounders. They homogenize, for example, waste, soil, chemical products, coated tablets, drugs, ores, grain, tissue, glass, hair, ceramics, bones, plastics, alloys, minerals, oil seeds, plants, sewage sludge, pills, textiles, wool etc.
To find the best solution for your sample preparation task, visit our application database:
|Applications||mechanochemistry, homogenization, size reduction, cryogenic grinding, mechanical alloying, mixing,|
|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. 6 x 20 ml|
|No. of grinding stations||6|
|Setting of vibrational frequency||digital, 3 - 35 Hz (180 - 2100 min-1)|
|Typical mean grinding time||30 s - 2 min|
|Cell disruption with reaction vials||yes|
|Self-centering clamping device||yes|
|Type of grinding jars||screw top design|
|Material of grinding tools||hardened steel, stainless steel, tungsten carbide, zirconium oxide, agate, PTFE|
|Grinding jar sizes||1.5 ml / 5 ml / 10 ml / 25 ml / 35 ml / 50 ml|
|Setting of grinding time||digital, 10 s - 8 h|
|Total grinding time||99 h|
|Number of storable cycle programs||4 (with 99 repeats)|
|Electrical supply data||100-120V, 50/60 Hz; 200-230V, 50/60Hz|
|Protection code||IP 30|
|Power consumption||750 W|
|W x H x D closed||690 x 375 x 585 mm|
|Net weight||~ 60 kg|
The grinding jars of the mixer mill MM 500 vario 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.
As the leading solution provider for sample preparation equipment, RETSCH has taken operating convenience to the next level and created the new RETSCH App. This tool makes working with your RETSCH mill easy and convenient:
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