Retsch XRD-Mill McCrone , Complete package incl. 2 agate grinding sets (50 grinding elements each), 2 grinding jars with screw top lid of PP, 1 pouring lid, 1 loading device, 220-240 V, 50/60 Hz

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A ball mill for powerful size reduction and homogenization

RETSCH ball mills are available as mixer mills as well as planetary ball mills.

Mixer Mills grind and homogenize small sample volumes quickly and efficiently by impact and friction. They are suitable for dry, wet and cryogenic grinding as well as for cell disruption for DNA/RNA recovery.

RETSCH’s innovative Planetary Ball Mills meet and exceed all requirements for fast and reproducible grinding down to the nano range. They are used for the most demanding tasks, from routine sample processing to colloidal grinding and advanced materials development.

The High Energy Ball Mill Emax is an entirely new type of mill for high energy input. The unique combination of high friction and impact results in extremely fine particles within the shortest amount of time.


Applicationsgrinding, mixing and triturating, dry and wet
Field of applicationX-ray diffraction
Feed materialmedium-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 stations1
Typical mean grinding time3 - 30 min
Dry grindingyes
Wet grindingyes
Cryogenic grinding-
Material of grinding toolsagate, zirconium oxide, corundum
Grinding jar sizes125 ml
Setting of grinding timedigital, 00:00:10 to 99:59:50
Drive power50W
Electrical supply data220-240 V, 50/60 Hz
Power connection1-phase
Protection codeIP 30
Power consumption100W
W x H x D closed205 x 155 x 520 mm
Net weight~19 kg

Please note:
*depending on feed material and instrument configuration/settings

Function 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.

Subject to technical modifications and errors

Call 01463 830401 For Any Assistance

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.

Application Examples

bones, borides, carbides, cement, ceramics, clay, construction materials, glass, metals, mica, minerals, nitrides, plant materials, slate

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


    • SKU
  • Manufacturer
    Retsch GmbH
  • Country of Origin

Sets of grinding elements

Agate1 set (50 grinding elements) 

Corundum1 set (48 grinding elements) 

02.368.0126Zirconium oxide, 1 set (48 grinding elements)


Accessories for sample preparation

Sample preparation set (stainless steel percussion mortar, 10 corundum grinding elements, 1 sieve 500 µm and 1 brush)

02.368.0124Grinding elements, tungsten carbide, 2 pieces


Additional items

01.462.0356Grinding jar with screw top lid

03.462.0357Pouring lid

03.486.0007Loading device