How to Determine Left Hand vs. Right Hand Propellers


The hand of your impeller and the rotation of your shaft will determine the flow of your material.  A propeller should be mounted to the shaft with the pitch-face in the direction of the flow desired.

When viewing into the container from above with a clockwise rotating shaft, a left hand propeller will direct material to flow down and a right hand propeller will direct material to flow up.  A counter clockwise rotating shaft will produce opposite flow results. With a counter clockwise rotating shaft, a right hand propeller will direct the material to flow down and a left hand propeller will direct the material to flow up.

See our video demonstration at for more details on determining the hand of your propeller.