CEMA Inclined and Vertical Screw Conveyors Best Practice Guide 2021

This publication was developed as a separate ‘Best Practices’ document from the development of ANSI/CEMA Standard No. 350, Chapter 7 “Inclined and Vertical Screw Conveyors”.

An inclined screw conveyor is arranged to convey bulk material up an inclined path and is often very desirable as it may solve a conveying problem with a minimum of equipment and occupy a minimum of space.  

A vertical screw conveyor is one that conveys material upward in a vertical path. Vertical screw conveyors are sometimes called “lifts” or “elevators,” but such names are ambiguous. They require less space than some other forms of elevating conveyors.