RETSCH XRD-MILL MCCRONE

RETSCH XRD-MILL MCCRONE
Saringan Mesh

Deskripsi produk
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.


PRODUCT ADVANTAGES
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
APPLICATION EXAMPLES
bones, borides, carbides, cement, ceramics, clay, construction materials, glass, metals, mica, minerals, nitrides, plant materials, slate
To find the best solution for your sample preparation task, visit our application database.
Application Database
FEATURES
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 µm
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
*depending on feed material and instrument configuration/settings
FUNCTIONAL PRINCIPLE

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.