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Planetary Ball Mill PM 200 |
Planetary Ball Mills are used wherever the highest degree of fineness is required. Apart from the classical mixing and size reduction processes, the mills also meet all the technical requirements for colloidal grinding and have the energy input necessary for mechanical alloying processes. The extremely high centrifugal forces of the Planetary Ball Mills result in very high pulverization energy and therefore short grinding times.
The PM 200 is a convenient benchtop model with 2 grinding stations. |
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Application Examplesalloys, bones, ceramics, charcoal, chemical products, coal, coke, electronic scrap, fibres, glass, limestone, minerals, ores, paper, plant materials, quartz, seeds, sewage sludge, soils, waste samples, wood, ... Product Advantages- powerful and quick grinding down to nano range
- automatic grinding chamber ventilation
- 10 SOPs can be stored
- programmable starting time
- power failure backup ensures storage of remaining grinding time
- reproducible results due to energy and speed control
- suitable for long-term trials and continuous use
- 2 different grinding modes (dry and wet)
- measurement of energy input
- wide range of materials for contamination free grinding
- Safety Slider for safe operation
- comfortable parameter setting via display and ergonomic 1-button operation
Features| Applications | pulverizing, mixing, homogenizing, colloidal milling, mechanical alloying | | Field of application | agriculture, biology, chemistry / plastics, construction materials, engineering / electronics, environment / recycling, geology / metallurgy, glass / ceramics, medicine / pharmaceuticals | | Feed material | brittle, fibrous - dry or wet, hard, soft | | Size reduction principle | impact, friction | | Material feed size* | < 4 mm | | Final fineness* | < 1 µm, for colloidal grinding < 0.1 µm | | Batch size / feed quantity* | max. 2 x 50 ml | | No. of grinding stations | 2 | | Speed ratio | 1 : -2 | | Sun wheel speed | 100 - 650 min-1 | | Effective sun wheel diameter | 157 mm | | Type of grinding jars | "comfort", optional areation covers, safety closure devices | | Material of grinding tools | hardened steel, stainless steel, tungsten carbide, agate, sintered aluminium oxide, zirconium oxide | | Grinding jar sizes | 12 ml / 25 ml / 50 ml / 80 ml / 125 ml | | Setting of grinding time | digital, 00:00:01 to 99:59:59 | | Interval operation | yes, with direction reversal | | Interval time | 00:00:01 to 99:59:59 | | Pause time | 00:00:01 to 99:59:59 | | Storable SOPs | 10 | | Measurement of input energy possible | yes | | Interface | RS 232 / RS 485 | | Drive | asynchron motor with frequency converter | | Drive power | 750 W | | Protection code | IP 30 | | Power consumption | ~ 1250 W (VA) | | W x H x D closed | 630 x 468 x 415 mm | | Net weight | ~ 72 kg | | Workplace related emission value | LpAeq < 80 dB(A) | | Documentation | Operation & Application Video | | Standards | CE | | *depending on feed material and instrument configuration/settings | |
Function PrincipleThe grinding jars are arranged eccentrically on the sun wheel of the planetary ball mill. The direction of movement of the sun wheel is opposite to that of the grinding jars in the ratio 1:-2. The grinding balls in the grinding jars are subjected to superimposed rotational movements, the so-called Coriolis forces. The difference in speeds between the balls and grinding jars produces an interaction between frictional and impact forces, which releases high dynamic energies. The interplay between these forces produces the high and very effective degree of size reduction of the planetary ball mill Subject to technical modifications and errors
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