- Both powders and granules can be screened out by trommel screening machine. Infection And Infection Control, Nurse And Doctor Caps , 100% Medical Cotton Ball , Couch Roll Exporter ,Hospital Patient Gowns Surgical . 4. Screening machine equipment: trommel screening machine The product will supply to all over the world, such as Europe, America, Australia,Israel, Madras,Slovakia, Brunei.Organic fertilizer granulator machine