TheMakina a Rotary Drum Sievingndi zida wamba mu pawiri kupanga feteleza, makamaka ntchito kulekanitsa zinthu anabwerera ndi zomalizidwa, komanso kuzindikira gulu la mankhwala mapeto, ndipo ngakhale m'gulu mapeto.
TheLinear Vibrating Screeneramagwiritsa ntchito gwero lamphamvu logwedezeka kuchokera ku vibration-motor, zida zimagwedezeka pazenera ndikupita patsogolo molunjika.