The Retsch rotor mill series contains Ultra Centrifugal Mills, Rotor Beater Mills and Cross Beater Mills. Depending on the model, they are suitable for the preliminary and fine size reduction of soft, fibrous as well as hard materials.
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Ultra Centrifugal Mill ZM 200
The Retsch Ultra Centrifugal Mill ZM 200 is a high speed rotor mill with unmatched performance, suitable for the rapid size reduction of soft to medium-hard and fibrous materials.
Due to the efficient size reduction technique, the ZM 200 ensures gentle preparation of analytical samples in a very short time. The comprehensive range of accessories including a large variety of ring sieves and rotors as well as collection systems makes this mill a versatile instrument, easily adapted to varying applications. The optional Vibratory Feeder is load-controlled over interface and enables a uniform grind at maximum output rate. Moreover, when a cyclone is used, the sample is additionally cooled by the air stream and consequently discharged more rapidly from the grinding chamber via the cassette pan with outlet. The effect can be enhanced by connecting a vacuum cleaner.
With thousands of installations, the ZM 200 has become a standard in the chemical industry and agriculturan testing for food and feed applications.
Cyclone Mill TWISTER
The cyclone mill TWISTER is designed for food and feed processing prior to the NIR analysis. The optimized form of rotor and grinding chamber generates an air jet, which carries the ground sample through the integrated cyclone into the sample bottle. The air jet prevents the material from heating up, and consequently preserves the moisture content.
The included sieves guarantee an optimum particle size distribution, so that it is not necessary to recalibrate the NIR spectrometer. The rotor speed can be adjusted in 3 steps allowing for adaptation to the sample requirements. In addition, mill cleaning is quick and easy, as the air jet provides a complete discharge of the material from the grinding chamber.
The new cyclone mill TWISTER optimizes sample preparation reproducibility for the NIR analysis, thus allowing meaningful and reliable results.
Rotor Beater Mill SR 300
The Rotor Beater Mill SR 300 supports coarse and fine size reduction, either in batches or continuously. SR 300 can process dry, soft, medium-hard, organic and inorganic substances. With the adjustable speed of 3,000 to 10,000 rpm, this rotor beater mill is intended for universal use – from sample preparation in laboratories to preparing sample batches in production facilities or pilot plants. The grinding chamber, feed hopper and material inlet are made of high quality stainless steel.
Cross Beater Mill SK 300
The easy-to-operate Cross Beater Mill SK 300 is suitable for coarse and fine size reduction of medium-hard and brittle materials, either in batches or continuously. With the adjustable speed of 2,000 to 4,000 rpm, the SK 300 mill is intended for universal use – from sample preparation in laboratories, to preparing sample batches in production facilities or pilot plants.