An auger is a type of screw equipped with rotating plates welded onto a stem. The plates, called helical flights, are manufactured from pressed steel and aid in transporting solid or liquid materials down the length of the auger along the axis of rotation. Often used in agricultural applications to move and distribute feed and grain, these augers are addressed in a recently revised American National Standard, ANSI/ASAE EP389.2 JUN1993 (R2010), Auger Flighting Design Considerations. This document provides guidance for designing conveyor augers using steel helicoid flighting, and for specifying helicoid flighting as generally used in agricultural equipment.
Published by ANSI accredited standards developer and organizational member the American Society of Agricultural and Biological Engineers (ASABE), ANSI/ASAE EP389.2 JUN1993 (R2010) discusses flighting material and dimensions, physical properties, inside diameter, outside diameter, pitch of flighting, strip thickness, and standard tolerances. The newest edition of the standard may be applied to augers with helical flighting enclosed in a tube or for flighting that is not encased, and for augers powered by an electric motor, a tractor, or an auger mounted with an internal combustion engine.
ASABE is an educational and scientific membership organization of agricultural, food, and biological engineers seeking to develop efficient and environmentally sensitive methods of producing food, fiber, timber, and renewable energy sources.
