XRD-Mill McCrone

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The XRD-Mill McCrone was specially developed for the preparation of samples for subsequent X-ray diffraction (XRD). The mill is used for applications in geology, chemistry, mineralogy and materials science, quality control as well as R&D.

Because of its unique grinding motion, the XRD-Mill McCrone is particularly effective for this analytical method: The 48 cylindrical grinding elements grind the samples gently via friction. The result is a short grinding time with almost no sample loss and an exceptionally narrow particle size distribution.
The crystal lattice is almost entirely preserved during grinding operation, a premise for meaningful X-ray diffraction.

The grinding vessel consists of a 125 ml capacity polypropylene jar fitted with a screw capped gasketless polyethylene closure. The jar is filled with an ordered array of 48 identical cylindrical grinding elements, available in agate, zirconium oxide or corundum. The grinding time for optimum micronization is between 3 and 30 minutes. A typical sample volume is between 2 and 4 ml.

Exemplos de aplicação

borides, carbides, cerâmica, cimento, clay, Matriais de construção, metals, mica, minerais, nitrides, ossos, partes de plantas, slate, vidro

Vantagens dos produtos

  • crystal lattice preserved during grinding operation
  • very narrow and reproducible particle size distribution
  • minimal cross contamination
  • compact, bench-top sized model
  • adjustable grinding power (4 steps)
  • suitable for dry and wet grinding
  • easy to clean
  • almost maintenance-free
  • quiet operation

Características de desempenho

Aplicação moagem, mistura e trituração a seco e a úmido
Campo de aplicação X-ray diffraction
Material a processar semiduro, duro, frágil, fibroso
Granulometria inicial* < 0.5 mm
Finura final* < 1 µm
Velocidade a 50 Hz (60 Hz) 1,000 - 1,500 min-1 in 4 steps
Número de postos de moagem 1
Duração típica da moagem 3 - 30 min
Trituração a seco sim
Trituração a úmido sim
Trituração criogênica -
Material das ferramentas de moagem ágata, óxido de zircônio, coríndon
Volumes de vasos de moagem 125 ml
Programação do tempo de moagem digital, 00:00:01 a 99:59:50
Acionamento DC-Motor
Potência de acionamento 50W
Dados de conexão elétrica 220-240 V, 50/60 Hz
Conexão elétrica 1-phase
Código de proteção IP 30
Consumo de energia 100W
L x A x P fechado 205 x 155 x 520 mm
Peso líquido ~19 kg
Normas e padrões CE

Please note:
*dependendo do material a processar e da configuração/ajuste do equipamento

Princípio de funcionamento

The XRD-Mill McCrone carries out size reduction mainly by friction. 48 cylindrical grinding elements are placed into the grinding jar in eight rows of six elements each.

During operation, the jar’s circular motion causes the elements to grind the sample from < 0.5 mm to the low μm-range (typically < 10 μm).

Thanks to the very gentle size reduction process, the crystal lattice of the sample is preserved. This makes the XRD-Mill McCrone the instrument of choice for the sample preparation for subsequent X-ray diffraction analysis.

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