Elliptical-motion screening machine
The king class of classifiers and up to any task – mechanical or electronic
The elliptical-motion screening machine combines the advantages of linear- and circular-motion screening machines, while also enabling space-saving horizontal installation and high material throughput.
Both mechanical and electronic elliptical-motion screens can be selectively varied and adapted to operating conditions. This is done by, amongst other things, by altering the throw angle essential for transport speed and adaptation of parameters important for acceleration of the machine (such as vibration amplitude and speed).
The electronic elliptical-motion screening machine enables speed and throw angle to be adjusted while the machine is running. This adjustment can be done manually on a touch panel or fully automatically, via a profibus integrated into the plant control system – without having to stop the machine at all!
Our electronic elliptical-motion screening machines respond to changing operating situations easily and without any user intervention whatsoever. Therefore, fluctuating feed quantities, automatic cleaning and ejection of terminal grains in programmed cycles are no problem for this machine. A consistent and continuous screening result is guaranteed. The electronic components are carefully selected for usual harsh operating conditions.
Similarly, the mechanical elliptical-motion screening machine is as flexible as the electronic elliptical-motion screening machine is, however essential vibration parameters are only adjustable at standstill.
SIEBTECHNIK TEMA elliptical-motion screening machines guarantee flexibility in the production process and ensure consistent product quality.
Operational behaviour and mechanical characteristics
Our type E (shaft with unbalance mass) and type EZ (cell drive) elliptical-motion screening machines offer separation sizes between 0.8 – 300 mm and a screen area between 0,6 – 60 m². The machines can be set up for a vibration amplitude between 6 and 12 mm (main axis), depending on the product. The machines and therefore the screen panel are normally installed horizontally; the screen set-up can comprise between one and three screen decks.
The screen box is set up to hold lengthways / crossways tensioned screen panels, level screen decks and naturally also for system screen cloths by different screen cloth manufacturers. For dusty screening material we supply (on request) elliptical-motion screens with a dust cover. Individually adaptable screening aids in the form of beating devices or spraying systems are also available.