Screw conveyors are standardized through CEMA based on the screw outside diameter and the shaft outside diameter making these the 2 most important facts to know about a screw conveyor when sizing, designing or buying replacement parts.
Category: Screws
The SCP Worksheet is a useful tool to document the dimensions of an existing screw for internal record keeping or getting a custom quote
Dimensional Chart for Screw Conveyor Screws
The screw is the heart of the screw conveyor. The screw rotates to provide forward motion to the powder bulk solid being conveyed. Screw are available in a verity of configurations and lengths. Learn more about the basics of screw conveyor screws with this video.
Dimensional drawing and chart with measurements for screw conveyor shaft bolting components, including shaft diameter.
Diagram of an exploded screw conveyor with all parts labeled.
Believe it or not screw conveyor screws are extremely complicated and the nomenclature and terms are too.
One question we are asked a lot is why is there so much clearance (0.5in) between the screw and the trough (housing)?
A screw, or sometimes called an auger is the heart of the screw conveyor. The screw is rotated by the screw conveyor drive and pushes the conveyed material forward 1 pitch with every revolution.
