... clogging of the sifting materials Fits for screening fine materials Tumbler screenTumbler screen is an ... Working Principlel Basic rotary motion is similar to hand screening .The eccentricity is adjustable from 25 to 40mm ... , salt, recycling industry As the professional manufacturer of screening & conveying equipments since 1987, we are pleased to ... . DZYS Series Multi-layers Tumbler Screening Equipment