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Instrument Database:
Retsch GmbH - Ultra Centrifugal Mill ZM 200
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| Year of introduction |
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| Status |
available |
| Company |
Retsch GmbH
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| Categories |
Sample preparation: Mills, Grinders
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The RETSCH Ultra-Centrifugal Mill ZM 200 is used for the rapid reduction in size of soft to medium-hard and fibrous materials. As a result of the effective pulverization technique and the wide range of accessories the ZM 200 ensures the gentle preparation of analytical samples in a very short time.
Advantages
- Versatile in use due to wide range of accessories
- High final fineness
- Wide speed range, adjustable from 6 000 to 18 000 min-1
- Considerably increased throughput due to optimally matched frequency converter and 3-phase motor
- gentle and very rapid size reduction by 2-step rotor/screen system
- quiet and reliable, easy to clean
- comfortable parameter setting via display and ergonomic1-button operation
- Comfortable safety housing with automatic cover closure
- Motor compartment and electronics protected against dust and material penetration
- 2-year warranty, safe design to CE standard
In the Ultra Centrifugal Mill ZM 200 size reduction takes place by impact and shearing effects between the rotor and the fixed ring sieve. The feed material passes through the hopper (with splash-back protection) onto the rotor. Centrifugal acceleration throws it outward with great energy and it is precrushed on impact with the wedge-shaped rotor teeth moving at a high speed. It is then finely ground between the rotor and the ring sieve. This 2-step grinding ensures particularly gentle but fast processing. The feed material only remains in the grinding chamber for a very short time, which means that the characteristic features of the sample to be determined are not altered. The ground sample is collected in the collecting cassette surrounding the grinding chamber or in the downstream cyclone or paper filter bag.
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| Specifications |
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Performance Features
Working principle: Impact and shearing effect
Feed material: soft, medium hard, brittle, fibrous
Max. feed particle size: 10 mm
Sample volume / throughput: max. 900ml / with cyclone up to 5000ml
Fineness: down to 40 µm (depending on the material)
Mass and Weight
Over all dimensions WxHxD: 410 x 365 x 515 mm
Net weight: approx. 38 kg
Characteristic Noise Values (DIN 45635-31-01-KL3)
Workplace related emission level: LpAeq 77.5 dB(A)
Measuring conditions: calcinated limestone < 5 mm, 12-tooth rotor, 0.5 mm Conidur holes
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