Top-Driven Screen

The top-driven screen is an elliptical-motion screen whose ellipse direction changes along the deck; higher efficiency than a conventional screen, reduced blinding, 100-400 tph, ELK-U2050/U2060/U2460 models, 3 decks. The top-driven screen is a screen with elliptical vibration; because the ellipse direction changes along the deck (forward at the rear, backward at the front), its screening efficiency is higher than a conventional circular-motion screen. Capacity is 100-400 tph and the models are ELK-U2050, ELK-U2060 and ELK-U2460. The frame is built bolted and weld-free throughout; media change is practical and the inlet is guarded by Stone-box chutes. What sets elliptical motion apart Short eccentric-weighted shafts are linked by a cardan shaft; each bearing group has 2 dedicated screen bearings. Flow speed is high at the rear of the deck and low at the front. Dimensions and power ratings Screens under 14 m² use 2 bearing groups, larger ones 4. The 3-deck screen produces 4 fractions. Capacity depends on material gradation, moisture and whether screening is wet or dry; mesh apertures are set to order. Suitable materials Quarry and riverbed plants requiring high efficiency; because elliptical motion reduces blinding, it can also be used as a washing screen. On wet, near-size-heavy material it outperforms a conventional circular-motion screen. Scope of supply The top-driven screen delivers its best efficiency when paired with washing units; that is why General Machinery engineers it in the same file as screw/log washers, crushers and the batching plant. Long-life bearing and screen-media resupply continue under the same roof. S: Why does the top-driven screen use elliptical motion? C: Because the ellipse direction changes along the deck, material makes full contact with the aperture and dwells longer at the front; this means higher efficiency and less blinding than a conventional screen. S: What is its capacity? C: It ranges from 100-400 tph. Capacity varies with material gradation, moisture and whether screening is wet or dry. S: How many decks does it have? C: The models have 3 decks and split material into 4 fractions. S: How many bearing groups? C: Screens under 14 m² use 2 bearing groups, larger screens use 4; each group has 2 dedicated screen bearings. S: Can it run wet? C: Yes. Because elliptical motion reduces aperture blinding, the top-driven screen can also be used as a washing screen.