Optimum setup of prescreening
In order to tune the prescreening ideally to the material or application, the frequency of the prescreen can be adjusted steplessly. The correct selection of the screen surface is also important. Various punched plates or slotted grates are therefore available for the upper deck. The lower deck can be operated with wire cloth of different mesh sizes.
Wobbler feeder prescreening
In natural stone processing, every now and again stones are encountered that pose special challenges for optimum processing. Individual solutions are required here. This is why many plants can be equipped with a special wobbler feeder (instead of a double-deck prescreen) in order to screen sticky and clayey feed material thoroughly and efficiently.
The material is cleaned on the two-stage wobbler feeder and effective separation of the fines from extremely contaminated aggregate material is achieved.
Thanks to the elliptic lifting movements of the rollers, the material is evenly distributed and also freed of cohesive elements. Fines in the feed material fall through the rollers onto a side discharge conveyor and are effectively discharged.
Possible gap widths: up to 100 mm