The Combination Sizer is a special-purpose solution for materials with a wide particle size distribution that makes it possible to obtain grades ranging from fine particles to coarse chunks of material. This makes it clearly superior to conventional vibrating screens – in which coarse chunks would destroy the screen fabric – and screening grates – with which the degree of fine separation desired would not be achievable.
The Combination Sizer features a combination of bar systems in the upper section and screen fabric in the lower section. Part of the material being fed is discharged right over the grading bars, ensuring that only part of the material will pass through the actual screen deck. This not only reduces the load on the deck, but also ensures that high throughputs can be achieved even with the machine’s compact design.
The grading bars, which are fixed on one side, ensure that the material will be effectively separated without any blinding and without getting jammed or caught even when there are bulky chunks of material, sticky components, or cloth, wire, foil, etc. in the material. Upon request, the machine can come with the option to adjust the distance between bars in a continuously variable manner so that the grade can be adjusted as necessary. Finally, the machine features bars arranged in a diverging configuration, which not only improves the flowability of the material being screened, but also makes it possible to adjust the grade as required for the task at hand.