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Vibratory Disc Mill RS 300

Vibratory Disc Mill RS 300

Retsch | Sample Preparation - Inorganic

The Vibratory Disc Mill RS 300 XL is suitable for the extremely quick, loss-free and reproducible grinding of medium-hard, brittle and fibrous materials to analytical fineness.

It is possible to process 1, 2, 3 or 4 samples simultaneously. Thanks to the robust universal drive shaft, which sets the grinding jar into a 3D motion, this mill accepts grinding set weightsof up to 30 kg. The closed grinding system guarantees complete processing of the sample.

Similar to the RS 200, the RS 300 XL with its robust design has proven to be ideally suitable for applications in geology, mineralogy, metallurgy, as well as in the building materials sector(cement) and in power plants. Due to the high end fineness and speed the RETSCH Vibratory Disc Mills are the perfect choice when it comes to preparing samples for spectral analysis.

Application Examples

cement, cement clinker, ceramics, coal, coke, concrete, corundum, electronic components, glass, metal oxides, minerals, ores, plant materials, silicates, slag, soils, ...

Product Advantages

  • reproducible results and homogeneous samples thanks to universal drive shaft (3D vibration of grinding sets)
  • speed: 912min-1
  • short grinding times
  • autoreverse function (left/right rotation)
  • programmable interval function (start/ stop automatic)
  • wide range of materials for contamination-free grinding
  • grinding jar volumes from 100 ml up to 2,000 ml
  • closed and noise-insulated grinding chamber
  • pneumatic grinding-jar clamping (with air-pressure) for convenient and safe handling
  • additional security feature: mill only starts if the pneumatic pressure is correct
  • optional Autolifter for ergonomic lifting of heavy grinding sets


Applications size reduction, mixing, triturating
Field of application construction materials, environment / recycling, geology / metallurgy, glass / ceramics
Feed material medium-hard, hard, brittle, fibrous
Size reduction principle pressure, friction
Material feed size* < 20 mm
Final fineness* < 20 µm
Batch size / feed quantity* 35 - 2,000 ml
Speed at 50 Hz (60 Hz) 912 min-1
Material of grinding tools chrome steel, hardened steel, tungsten carbide, zirconium oxide, steel 1.1740 (for heavy-metal free grinding)
Grinding jar sizes 100 ml / 800 ml / 1,000 ml / 2,000 ml
Setting of grinding time digital, 00:00 to 59:59
Drive 3-phase motor
Drive power 2.2 kW
Electrical supply data different voltages
Power connection 3-phase
Protection code IP 40
W x H x D closed 1150 x 1400 x 810 mm
Net weight ~ 415 kg (without grinding set)

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