Processing 2 to 50 samples in one batch
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.
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The strong Mixer Mill for high throughput applications
- Max. speed 35 Hz
- Horizontal oscillation causes strong impact effects for effective sample processing
- Up to 8 mm feed size and 5 µm final fineness
- 6 grinding stations for jars of min. 2 ml and max. 50 ml, adapter holds up to 50 x 2 ml single use vials
- Steel jars can be precooled manually in liquid nitrogen
- Bench-top model, touch screen, storable SOPs and cycle programs, 7 different jar materials
Performance and design
- Grind sizes down to 5 μm possible
- Powerful pulverization with up to 35 Hz
- Twice as fast as mills with only 30 Hz
- Ergonomic design with touch display
Flexibility
- Suitable for dry, wet or cryogenic grinding
- Equally suited for rapid (<2 min) and long-term grinding (up to 99 hours)
- 12 SOPs and 4 program cycles with max. 99 repeats facilitate routine applications
- Grinding jars of various sizes and materials; adapters for single-use vials
Solutions for biological applications and cell disruption
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.
Mixer Mill MM 500 vario Maximize your throughput
- Maximum frequency of 35 Hz reduces grinding time to 50% compared to mixer mills with only 30 Hz
- Six grinding stations instead of two, as in classic mixer mills, ensure high throughput
- In combination, the throughput of the MM 500 vario is 6 times higher compared to a classic mixer mill
For safe and effective grinding processes Accessories for the MM 500 vario
Grinding jars in 6 different materials
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.
Adapters for single-use vials
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.
Mixer Mill MM 500 vario Typical Sample Materials
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.
Mixer Mill MM 500 vario Functional Principle
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.
Mixer Mill MM 500 vario Technical Data
| 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 |
| Max. feed size | = 8 mm |
| Final fineness | ~ 5 µm |
| Batch size / feed quantity | max. 6 x 20 ml |
| No. of grinding stations | 6 |
| Vibrational frequency | 3 - 35 Hz (180 - 2100 min-1) |
| Typical mean grinding time | 30 s - 2 min |
| Dry grinding | yes |
| Wet grinding | yes |
| Cryogenic grinding | yes |
| 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 |
| Storable SOPs | 12 |
| Number of storable cycle programs | 4 (with 99 repeats) |
| Electrical supply data | 100-120 V, 50/60 Hz; 200-230 V, 50/60Hz |
| Power connection | 1-phase |
| Power consumption | 750 W |
| Protection code | IP 30 |
| W x H x D closed | 690 x 375 x 585 mm |
| Net weight | ~ 60 kg |
| Standards | CE |
Mixer Mill MM 500 vario Downloads
General Catalogue
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MM 500 vario
Product data sheet MM 500 vario
Product Overview
The right mill for every application.
