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Flip-Flow Screening Machine LIWELL®
Type LF
The best seller of the LIWELL® screening machines – Type LF - is characterized by its unique properties:
- Two screen cases are brought into forced counteracting linear movement over an eccentric shaft
- Cross bars alternately fixed to the inner and outer screen cases permanently change in this way their distance to each other
Flexible screen mats attached to the cross beams are loosened, tensioned and stretched through the distance change.
The simple and solid machine construction is only exposed to small acceleration forces (2-3 g) during being in operation. A long service life of the machine components is the result of this mode of operation.
The Type LF is available as a single-deck and as a double-deck variant:
- The single deck variant is available with screening areas between 2.5 m² and 26.5 m²
- The double deck design has screening areas between 2 x 2.5 m² and 2 x 19.4 m².
The individual structuring of the machines allows delivery according to customers’ requirements, i.e. "customized": - Optionally additional dust protection provisions
- Color according to customer requirements
- Different divisions of the screen mats
- Side sealings of the screen mats in case of fine separations or in operation with sprinkling
- Optional wear-protection precautions through rubber coatings or utilization of HARDOX plates and ceramics.
- Mobile or semi-mobile constructions for more flexibility
The solution of various grinding tasks ...
... is easy for the DOPPSTADT AK 230 E grinder with its flail drum. It accomplishes its tasks by the free swinging flail principle combined with the grinding basket. Thanks to various, quickly replaceable tools, the AK 230 E can be adjusted to the different grinding tasks. The efficient mechanic power transmission is carried out by V-belt drive of the flail drum and hydraulic drive of the additional components. Furthermore, highest flexibility for a quick and universal application is guaranteed.
- Easy accessibility thanks to large protection doors
- Powerful and robust V-belt drive with rotary current motor. The motor is easily accessible from 2 sides
- Large feeding hopper with hydraulically driven scraper floor and infeed roller for controlled and problem-free feeding of the flail drum
- The flails grind the material, achieving a defined grain size by means of the mesh size of the chosen grinding basket, the flail tips retreat automatically in case of large unshreddable contaminants in order to protect the machine and to reduce the tool wear
- The quick-changing baskets, the patented flail tip fixings and the good accessibility from outside permit a quick replacement of the grinding tools
- All the grinding tools of the Doppstadt mobile series can be used
- Very good separation of metal pieces from the material compounds thanks to the flail principle
- Easy operation, exact adjustment and reading of the machine data ensured with a multifunction display. The machine can be controlled by remote control or by automatic operation in case of subordination to a central control
- The machine is ready to work within a few minutes
