Firma:              Retsch

Modell:                         MM 200

Kommentar:     Dokumente engl.

Mixer Mills MM 200

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 suspensions. They are suitable for breaking open biological cells. RETSCH mixer mills are used in the field of analytic 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, Reset 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.

Performance Features

Working principle                 Grinding is effected through the impact of the bal

Max. feed particle                 6 mm

size

Fineness                               0,001 mm (depend on the material)

Grinding chamber                 max. 2 x 10 ml

volume

Mass and Weight

Over all dimensions               300 mm x 465 mm x 182

WxDxH                               mm

Weight                                 20 kg

Characteristic Noise Values (DIN 45635-31-

O1-KL3)

Workplace related                L pA eq = 76 dB (A)

emission level

Sound power level                L WA = 89 dB (A)

Grinding material                   glass fragments < 15 mm

                                           (100 ml steel grinding set)