Inclined Screw Conveyors

Screw conveyors can typically operate at incline angles up to 45 degrees, though capacity decreases as the angle increases. For many bulk solids, optimal efficiency is maintained between 15 and 30 degrees. Beyond 45 degrees, a vertical screw conveyor design is recommended. The specific maximum angle depends on the material's flowability, particle size, and bulk density — JERSEY CRUSHER engineers assess each application individually.

An auger screw conveyor works by rotating a helical screw blade (the auger) inside an enclosed tube or trough. As the screw rotates, its helical flights push material forward along the tube's length. In inclined configurations, the rotation creates enough thrust to move material uphill against gravity. Variable speed drives allow operators to precisely control throughput to match upstream and downstream process equipment.

JERSEY CRUSHER inclined screw conveyors handle a wide range of bulk materials including grains, spices, powders, sugar, chemical intermediates, minerals, fertilizers, animal feed, pharmaceutical excipients, sawdust, and biomass. They are particularly effective for wet, sticky, or compacted materials that would challenge belt or bucket conveyors, thanks to their enclosed tube construction and positive displacement action.

Standard diameter configurations range from 6 inches to 12 inches. For higher-throughput applications requiring greater capacity, custom diameters beyond 12 inches are available as engineered-to-order solutions. The appropriate diameter is determined by required throughput volume, material bulk density, incline angle, and integration geometry with existing upstream and downstream equipment.

JERSEY CRUSHER inclined screw conveyors are available in carbon steel with blue enamel finish, 304 stainless steel, and 316 sanitary stainless steel. The 316 SS option is designed for food, pharmaceutical, and sugar industry applications requiring FDA-adjacent sanitary construction, food-contact surface compliance, and NFPA 61 combustion risk mitigation for combustible powder environments.

Yes. JERSEY CRUSHER inclined screw conveyors are engineered to integrate directly with lump breakers (Lump Busters®), particle-izers, volumetric feeders, AGVs, and robotic finished-goods handlers. Custom inlet and discharge configurations, variable speed drives, and flexible mounting geometries allow seamless drop-in integration into existing production lines without major facility modifications.