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Instrument Database:
Retsch GmbH - Mixer Mill MM 200
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| Year of introduction |
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| Status |
historical ( out of sale ) |
| Company |
Retsch GmbH
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| Categories |
Sample preparation: Mills, Grinders
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Retsch mixer mills are particulary suited for dry and wet grinding of small quantities of material. The MM 200 are ideal for mixing and homogenizing powders and supensions. They are suitable for breaking open biological cells. Retsch mixer mills are used in the field of analytical chemistry, pharmacy, biology, paints and enamels, metallurgy, enviromental protection and experimental medicine.
Advantages
- High degree of ultimate fineness and complete mixing in just a short period of time, 100% recovery of sample
- Double sample throughput rate with tandem grinding containers
- Grinding period and oscillation can be set digitally
- High reproducibility due to speed control (continuous adjustment of oscillation engineering)
- Memory keys for 3 working programs, Re-set lock to secure the parameter set
- Simple, quick exchange of the grinding sets)
- 2-year warranty, CE marked
Grinding in the mixer mill is effected through the impact of the balls on the product, homogenization by the shaking movement and the motion of the balls inside the jar. The jars execute radial oscillations in a horizontal plane; the result is that the balls impact the sample from alternate sides. The oscillation frequency can be set at any level from 3 to about 30 Hz. (= 180-1.800 rpm). During the entire grinding process, an electronic speed control compares the actual speed to the preset value and keeps it constant. The grinding and mixing period can be preset digitally for 10 seconds to 99 minutes; with the last setting retained in memory for subsequent trials. The unit is powered by a high-performance, 80-watt motor. Equipped with electronic brake the unit will reach a standstill in less than 1 second after the Plexiglas safety cover is opened. Opposing action of the jars ensures stability even at maximum oscillation intensity.
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| Specifications |
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Performance Features
Working principle: Impact effect
Max. feed particle size: 6 mm
Fineness: < 10 µm (depending on the material)
Sample volume: max. 2 x 10 ml
Mass and Weight
Over all dimensions WxDxH: 300 mm x 465 mm x 182 mm
Weight: 20 kg
Characteristic Noise Values (DIN 45635-31-01-KL3)
Workplace related emission level: 76 dB (A)
Sound power level: 89 dB (A)
Parameters: Broken quartz gravel 4 - 6 mm, each 8 ml
2 grinding jars 25 ml of stainless steel with each 1 grinding ball ø 20 mm
pfeil
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