Mixer Mill MM 500 Vario

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.

Manufacturer: Retsch

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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.

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.

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

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.

MIXER MILL MM 500 VARIOTECHNICAL 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
Material 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
Protection code	IP 30
Power consumption	750 W
W x H x D closed	690 x 375 x 585 mm
Net weight	~ 60 kg
Standards	CE