Rotary sifter TurboWitt C25
Brief Overview
- In this type of disagglomeration a centrifugal force acts on the product, causing it to flow gently under the two fix-mounted stator arms, pressing through the sieve openings. In contrast to systems with rotary milling tools; the TurboWitt, undesirable particles are excluded from the milling process and easily removed during the controlled sieving process.
- The TurboWitt can be used for powders with particle sizes ranging from a maximum of 1 cm to a minimum of 150 μm. The flow rate depends on product characteristics and particle size, and can range from 2000 Kg/Hr. to 25'000 Kg/Hr. There are suitable sieve drums, rasps and stators available for every application and every product.
- All parts in contact with the product are made of stainless steel and the plastic seals are made of FDA approved materials (EPDM, PTFE). The TurboWitt is thus suitable for use in the pharmaceutical, food, and fine chemicals industries.
Technical data
Technical data
Technical data
| Flowrate* | Voltage | Rotor speed | Power | Net weigth |
TurboWitt C20 | 1000-15'000 kg/h | 3 x 400 V - 50 Hz | max. 2400 rpm/min | 4.0 kW | ˜ 160 kg |
TurboWitt C25 | 2000-25'000 kg/h | 3 x 400 V - 50 Hz | max. 1800 rpm/min | 5.5 kW | ˜ 170 kg |
* Flowrate is depending on product characteristics and | |||||
Measures
Measures
| B | C | D | E | F | A-Infeed | A-Discharge |
TurboWitt C20 | 370 | 650 | 920 | 1421 | 653 | ∅ 150 | ∅ 250 |
TurboWitt C25 | 440 | 650 | 920 | 1523 | 786 | ∅ 200 | ∅ 300 |
Materials
Materials
Execution | Parts in contact with the product | Parts not in contact with the product |
Material | 1.4435 / 1.4404 (AISI-316L) | 1.4301 / 104305 AISI-304) |
Seals | FDA compliant plastics (EPDM / PTFE) | Various plastics |
Surface finish | Ra ≤ 0.8 μm polished / haed Ra ≤ 0.4 μm polished | Ra ≤ 1.4 μm polished |
Weld seams | Pickled and polished | treated and brushed |
Stator | with 2 square arms profil or 2 round arms profile | |
Sieve drums / rasp | square openings ∅ 0,5 - 10.0 mm / rasp 1.1 mm - 8.0 mm | |
Distance stator / sieve drums | No mechanical contact (prevents metal abrasion) | |
Construction
Construction
Due to its modular construction, this sizing mill is ready to operate in no time.
- The sieve or rasping drum and the stator are easily installed or
removed without tools.
- Easy and quick cleaning (WIP)
- Tri-Clamps for attachment of the inlet and outlet funnels
- Continuously variable, manual (hydraulic) height adjustment
Process
Process
The TurboWitt milling process
Centrifugal force acts on the product, causing it to flow gently under the two fix-mounted stator arms, through the sieve openings. Milling in the TurboWitt is achieved primarily by the particles being held and comminutated between the drum surfaces and the stator.
In Contrast to systems with rotary milling tools, the TurboWitt foreign products are excluded from the milling process and easily removed during the controlled sieving process.












