Horizontal Screw Conveyors : Used to move material horizontally.
Inclined Screw Conveyors : For moving materials at an angle, though efficiency decreases as the angle increases.
Vertical Screw Conveyors : Moves materials vertically; often used for lifting bulk materials.
Shaftless Screw Conveyors : Used for conveying sticky or viscous materials that would normally build up around a shaft.