XRD-Mill McCrone

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. Consequently, the signals in the X-ray diffraction pattern are peak-shaped, with small half-widths, allowing for very good phase analysis.
The crystal lattice structure is largely preserved, with almost no defects, a prerequisite for meaningful X-ray diffraction patterns.
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.
For the preparation of organic samples for a subsequent XRD examination we also offer a hand mortar and pestle made of agate.

Applications :

• grinding, mixing and triturating, dry and wet

Field of application :

• X-ray diffraction

Feed material :

• medium-hard, hard, brittle, fibrous

Material feed size :

• < 0.5 mm

Final fineness :

• < 1 °m

Speed at 50 Hz (60 Hz) :

• 1,000 - 1,500 min-1 in 4 steps

No. of grinding stations :

• 1

Typical mean grinding time :

• 3 - 30 min

Dry grinding :

• yes

Wet grinding :

• yes

Cryogenic grinding :

• no

Material of grinding tools :

• agate, zirconium oxide, corundum

Grinding jar sizes :

• 125 ml

Setting of grinding time :

• digital, 00:00:10 to 99:59:50

Drive :

• DC-Motor

Drive power :

• 50 W

Electrical supply data :

• 100-240 V, 50/60 Hz

Power connection :

• 1-phase

Protection code :

• IP 30

Power consumption :

• 33 VA

W x H x D closed :

• 205 x 155 x 520 mm

Net weight :

• ~8.9 kg

Standards :

• CE

• 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