A special type of screw conveyors called live bottom screw feeders, are used to control the volume of material drawn form bins, hoppers, bag dump stations, etc...

Live bottom screw feeder is used for bulk handling of material by Using multiple screws with continuous feed.  It can be combined with tapered or stepped dia. or variable pitch flights to give even discharge of the material.

Live bottom screw feeders are designed to be mounted under flat bottom bins to control the flow rate of bulk material that tend to pack or bridge under pressure.  Live bottom screw feeders are designed to be flooded with the bulk material and by means of a shrouded trough will control the amount of bulk material being discharged.   A stepped tapered pitch or variable pitch screws are used in live bottom screw feeder to draw the bulk material evenly from all areas of inlet opening.  Nova Bulk Handlers can design, engineer and manufacture live bottom screw feeders to satisfy your needs.

Used for applications where a large feed area is required by design or where the material has the characteristic of severe bridging.

Live Bottom Screw Conveyor Images:

Feeder Screw

Live Bottom

Live Bottom

Live Bottom Feeder