XRD-Molen 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.

Toepassingen

beenderen, boriden, bouwmaterialen, carbiden, cement, glas, keramiek, klei, leisteen, metalen, mica, mineralen, nitrides, plantenmaterialen

Voordelen

  • 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

Kenmerken

Toepassingen malen, mengen en trituratie, droog en nat
Toepassingsdomein X-ray diffraction
Toevoermateriaal medium-hard, hard, breekbaar, vezelig
Korrelgrootte materiaal* < 0.5 mm
Eindfijheid* < 1 µm
Snelheid bij 50 Hz (60 Hz) 1,000 - 1,500 min-1 in 4 steps
Aantal maalstations 1
Typische gemiddelde maalduur 3 - 30 min
Droog malen ja
Nat malen ja
Cryogeen malen -
Materiaal van maalwerktuigen agaat, zirconiumoxide, corundum
Maalbeker maten 125 ml
Instelling maalduur digitaal, 00:00:01 tot 99:59:50
Aandrijving DC-Motor
Aandrijfvermogen 50W
Gegevens electriciteit 220-240 V, 50/60 Hz
Aansluiting electriciteit 1 fase
Beschermingsklasse IP 30
Vermogen 100W
B x H x D gesloten 205 x 155 x 520 mm
Netto gewicht ~19 kg
Standaarden CE

Opmerking:
*afhankelijk van toegevoerd materiaal en configuratie/instellingen van toestel

Principe

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.

Onder voorbehoud van technische wijzigingen en eventuele fouten