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.
"The Mixer Mill MM 500 nano is very useful. First of all, it is user-friendly and results are very good. It gives very fine particles even in a short period of time. Also, cleaning of jars is very easy."
Erkam Güllüoğlu
Gentas Dekoratif
"Wonderful effect and results more than 10 times those obtained by traditional methods. It is really easy to use and it has multiple benefits and can be used in more than one application. The after-sales service is excellent."
Ahmed Hendawy
Al-almas
"You save time, which is the most expensive reagent. It is a solid instrument and a workhorse that we use six to eight hours a day. Care was clearly taken in the design of the mixer mill itself. Highest recommendation."
Carl Hoff
University of Miami
Result: You get your nano sample within the shortest time.
Nano grinding of 25 g titanium dioxide in a 125 ml grinding jar zirconium oxide with 275 g balls 0.1 mm, 30 ml 1% NaPO4 solution. A particle size of 90 nm was achievied after 120 minutes of grinding.
Available grinding jar sizes are 50 ml, 80 ml and 125 ml, materials include stainless steel, tungsten carbide and zirconium oxide, ensuring contamination-free sample preparation.
RETSCH offers a special aeration lid for the grinding jars designed for applications where a special atmosphere is to be maintained in the ball mill jar.
The GrindControl measures temperature and pressure inside the jar. The system includes a sensor and transmission unit as well as an analysis software.
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.
Multi-cavity jars of 4 x 10 ml and 2 x 25 ml, made of stainless steel, incl. PTFE pouring aids.
Adapter for 18 x 2 ml safe-lock reaction vials or 9 x 2 ml steel tubes, made of aluminum
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.
titanium oxide
wet grinding
metal alloy
dry grinding
hair
dry grinding
tyre rubber
cryogenic grinding
To find the best solution for your sample preparation task, visit our application database.
Narrow particle size distribution of aluminium oxide after grinding (Nano grinding of 30 g aluminum oxide in a 125 ml grinding jar zirconium oxide with 275 g balls 0.1 mm, 33 ml 0.5% NaPO4 solution)
| 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 |
The grinding jars of the mixer mill MM 500 nano 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:
Content may be subject to modifications or corrections
