Retsch Drum Mill TM 300 XL, 230 V , 50 Hz, incl. base frame, collecting unit with set of separating screens for 20 mm balls (please order ball/rod module separately)

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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.


Applicationspulverizing, mixing
Field of applicationagriculture, biology, Chemistry, construction materials, engineering / electronics, environment / recycling, geology / metallurgy, glass / ceramics, medicine / pharmaceuticals
Feed materialsoft, hard, brittle, fibrous - dry or wet
Size reduction principlefriction
Material feed size*< 20 mm
Final fineness*< 20 µm
Batch size / feed quantity*minimum 1 l / maximum 20 l
Rotation speed0 - 80 min-1
No. of grinding stations1
Material of grinding toolshardened steel
Grinding drum sizes5 l / 10 l / 21.7 l / 43.3 l
Setting of grinding timedigital
Drive3-phase asynchronous motor with frequency converter
Drive power0.75 kW
Electrical supply datadifferent voltages
Power connection1-phase
Protection codeIP 50
Power consumption~ 750 W (VA)
W x H x D closed1500 x 1200 x 700 mm
Net weight~ 295 kg

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

Function Principle

In a drum mill the sample (usually pre-crushed material) is placed inside the drum with the grinding media (grinding balls or rods) and subjected to external forces. The Ball Mill and Rod Mill Modules are used for fine grinding of solid matter by impact and friction, in wet or dry condition. The drum, which contains the sample and grinding balls or rods, rotates around a horizontal axis. Whereas particles break more easily when larger grinding ball resp. rod diameters are used, smaller diameters lead to a substantially higher final fineness.

The motor incorporates a solid-state controller with internal overload protection which is used to set and accurately control different drum speeds.

Subject to technical modifications and errors

Call 01463 830401 For Any Assistance

The TM 300 XL Drum Mill is used for the preparation of granules and powders. The grinding process is performed either in dry or wet conditions. The drum mill can be operated either as a Ball or as a Rod Mill by using the corresponding module. A sufficient number of balls or rods is required for an effective grinding process. Typically, a final fineness below 20 microns is obtained.

The mill consists of a gear motor mounted on a solid steel frame complete with outlet funnel and a set of separation screens plus sample collector. The TM 300 XL features a yoke and locking mechanism for easy access to the sample. The drum cover is easily removed for cleaning thanks to a quick release locking mechanism.

Adjustment of grinding parameters:
Parameters like grinding time or start and stop are set conveniently via the display. The following factors have an influence on the final particle size: Sample characteristics, maximum feed size and capacity. We will gladly support you in working out the most suitable configuration for your specific application.

Application Examples

alloys, bentonite, bones, carbon fibres, catalysts, cellulose, cement clinker, ceramics, charcoal, chemical products, clay minerals, coal, coke, compost, concrete, electronic scrap, fibres, glass, gypsum, hair, hydroxyapatite, iron ore, kaolin, limestone, metal oxides, minerals, ores, paints and lacquers, paper, pigments, plant materials, polymers, quartz, seeds, semi-precious stones, sewage sludge, slag, soils, tissue, tobacco, waste samples, wood, ...

Product Advantages

  • powerful and quick grinding of large quantities
  • suitable for dry and wet grinding
  • variable speed, reproducible results
  • suitable for long-term operations
  • ball mill and rod mill modules available
  • easy tilt to empty the grinding jar
  • solid steel frame
  • removable sample collector
  • convenient parameter setting via display
  • standard sizes of grinding drums from 5 to 43.4 l
  • separation grid to separate sample from grinding balls (only for Ball Mill)
  • funnel with handles
  • guide rail allows for ergonomic removal of drum
  • grinding jar with gasket for lossfree operation
  • solid noise-protection hood
  • emergency switch



    • SKU
  • Manufacturer
    Retsch GmbH
  • Country of Origin


Ball module 21.7 l, incl. drum and ball filling, 20 kg, 20 mm

Rod module 43.4 l, incl. drum and rod filling, 8 pieces


Accessories for dry grinding

Drum 21.7 l, for grinding balls, steel 1.0037

Drum 10 l, for grinding balls, steel 1.0037

Drum 5 l, for grinding balls, steel 1.0037

Ball filling, 20 mm Ø, for dry grinding, steel 1.3505

Ball filling, 10 mm Ø, for dry grinding, steel 1.3505

Ball filling, 5 mm Ø, for dry grinding, steel 1.3505

Drum 43.4 l, for grinding rods, steel 1.0037

Rod filling, for dry grinding, steel 1.3505, for drum 43.4 l only


Accessories for wet grinding

Drum 21.7 l, for grinding balls, stainless steel 1.4404

Drum 10 l, for grinding balls, stainless steel 1.4404

Drum 5 l, for grinding balls, stainless steel 1.4404

Ball filling, 30 mm Ø, for wet grinding, stainless steel 1.4404

Ball filling, 20 mm Ø, for wet grinding, stainless steel 1.4404

Ball filling, 10 mm Ø, for wet grinding, stainless steel 1.4404

Ball filling, 5 mm Ø, for wet grinding, stainless steel 1.4404