Mixer Mill MM 500 Nano

The mixer mill MM 500 nano is a compact, versatile bench-top unit which has been developed specially for dry, wet and cryogenic grinding of up to 2 x 45 ml sample material within seconds.

Manufacturer: Retsch

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The mixer mill MM 500 nano is a compact, versatile bench-top unit which has been developed specially for dry, wet and cryogenic grinding of up to 2 x 45 ml sample material within seconds. With a maximum frequency of 35 Hz, it generates enough energy to produce particles in the nanometer range.

The robust high-performance drive makes the mill suitable for long-term grinding processes up to 99 hours and thus very interesting for research and mechanochemistry.

Hence, the MM 500 nano is a unique mixer mill in the market to provide a real alternative to grinding in a planetary ball mill – with more comfortable handling and less warming effects.

HIGH SPEED BALL MILLING WITH EASY OPERATION FOR BEST RESULTS

Max. speed 35 Hz
Horizontal oscillation causes strong impact effects for effective sample processing
Up to 10 mm feed size and 0.1 µm final fineness
2 grinding stations for jars of min. 2 ml and max. 125 ml, adapter for 18 x 2 ml single use vials
Steel jars can be precooled manually in liquid nitrogen
GrindControl to measure temperature and pressure inside the jar.
Aeriation lids to control the atmosphere inside the jar
Bench top model, touch screen, easy jar clamping, jars can stay clamped for subsampling, storable SOPs and cycle programs, 4 different jar materials for dry and wet grinding

ADVANTAGES THROUGH DESIGN

Thanks to the flat lid, the nominal volume can be used optimally, for example to accommodate sufficient fibrous samples or to achieve the best mixture of sample, small grinding balls and liquid for wet grinding.
Screw-Lock grinding jars (50 / 80 / 125 ml) for dry, wet or cryogenic grinding
Very easy, comfortable clamping and handling of the grinding jars, which are pressure-tight up to 5 bar
Jars can stay clamped while taking a sub-sample or visual checks of fineness
Ergonomic design with touch display for easy parameter setting
12 SOPs & 4 program cycles with up to 99 repeats to facilitate routine applications

FLEXIBILITY

Equally suited for rapid pulverization <2 min and long-term grinding up to 99 hours
Use one large grinding ball in the High Impact mode or several smaller balls in the High Friction mode
Use the MM 500 nano for routine sample preparation applications, for nano-grinding or for research applications such as mechanochemistry and mechanical alloying

NANOGRIND SIZES IN THE NANOMETER RANGE

New jar design allows for optimized usage of jar volume also for wet grinding
Final fineness < 100 nm possible thanks to maximized energy input at 35 Hz
Less warming effects, thus grinding can usually be done without grinding breaks for cooling down

Result: You get your nano sample within the shortest time.

MULTI-CAVITY JARS & ADAPTER

Simultaneous processing of several small samples is possible with the multi-cavity jars and an adapter for reaction vials. This is a typical requirement, for example, for pharmaceutical, chemical and biochemical applications. The small cavity jars provide new opportunities for mechanochemical research activities involving small amounts of chemicals. The cavities in the jars have an oval shape which ensures effective mixing. The pouring aids allow for safe sample handling.
The adapter accommodates up to 18 disposable reaction vials of 1.5 or 2.0 ml (e.g. Eppendorf vials) or nine 2.0 ml steel tubes. With its two grinding stations, the MM 500 nano mixer mill can now process up to 36 samples in one working run. 2.0 ml steel tubes should be used, if samples need to be frozen or heated, as polymeric reaction vessels cannot withstand mechanical load at extreme temperatures.

TYPICAL SAMPLE MATERIALS

RETSCH mixer mills are true allrounders. They homogenize, for example: alloys, animal feed, bones, ceramics, 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, etc.

MIXER MILL MM 500 NANOTECHNICAL DATA

Applications	mechanochemistry, mechanical alloying, size reduction, mixing, homogenization, 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*	<= 10 mm
Final fineness*	~ 0.1 µm
Batch size / feed quantity*	max. 2 x 45 ml
No. of grinding stations	2
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	no
Type of grinding jars	screw-lock jar with integrated safety closure devices, multi cavity jar, adapter for safe-lock reaction vials
Material of grinding tools	hardened steel, stainless steel, tungsten carbide, zirconium oxide
Grinding jar sizes	10 ml / 25 ml / 50 ml / 80 ml / 125 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