Mixer Mill MM 400
The mixer mill MM 400 is a laboratory “all-rounder". It 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 extraction.
Application Examples
alloys, animal feed, bones, ceramics, cereal grains, chemical products, coal, drugs, electronic scrap, glass, hair, minerals, oil seeds, ores, paper, plant materials, plastics, sewage sludge, soils, tablets, textiles, tissue, waste samples, wood, wool, ...
Product Advantages
- quick, efficient pulverization and homogenization
- high sample throughput due to short grinding times and two grinding stations
- reproducible results due to digital setting of grinding time and vibrational frequency
- large range of grinding jars
- 9 parameter combinations can be stored
- safe wet grinding without loss of material with screw-top grinding jars
- simple and comfortable operation
- 2-year warranty, CE-conforming
Features
| Applications | size reduction, mixing, homogenization, cell disruption, cryogenic grinding |
| Field of application | agriculture, biology, chemistry / plastics, construction materials, engineering / electronics, environment, food, glass / ceramics, medicine / pharmaceuticals, mineralogy / metallurgy |
| 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 | 2 min |
| Dry grinding | yes |
| Wet grinding | yes |
| Cryogenic grinding | yes |
| 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, agate, zirconium oxide, teflon, tungsten carbide |
| Grinding jar sizes | 1.5 ml / 5 ml / 10 ml / 25 ml / 50ml |
| Setting of grinding time | digital, 10 s - 99 min |
| Parameter combinations that can be stored | 9 |
| Drive | DC-Motor |
| Protection code | IP 30 |
| Power consumption | 150 W |
| W x H x D closed | 371 x 266 x 461 mm |
| Net weight | ~ 26 kg |
| Workplace related emission value | LpAeq 65 dB(A) |
| *depending on feed material and instrument configuration/settings |
Function Principle
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.
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
