Economy Type Sweep Auger

The economy type sweep auger sweeps the residual grain that does not flow by gravity in flat-bottom silos toward the centre discharge. Its simple design and low investment cost allow small and medium silos to be emptied completely without anyone entering the silo.

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What Is a Economy Type Sweep Auger and How Does It Work?

When flow through the centre outlet stops during silo discharge, a cone of product remains on the floor. The sweep auger's screw, driven by a motor-gearbox unit, rotates while travelling in a circle over the silo floor and carries the remaining product to the centre discharge channel. In the economy type the drive and travel mechanism are simplified to reduce cost.

Key Features

Simple, low-investment design
Screw length sized to the silo diameter
Works with the centre discharge channel and gate
Floor unloading without entering the silo, for occupational safety

Applications

Small and medium flat-bottom steel silos
Agricultural cooperative and farm silos
Raw material silos of feed and flour mills

Integration with Plant and Automation Systems

The sweep auger works together with the silo bottom discharge screw or chain conveyor. Its motor is controlled from the automation panel and can be interlocked so that it only starts while the centre gate is open.

Engineering and Selecting the Right Product

Silo diameter, product type, residual floor volume and target unloading time determine the screw diameter, motor power and travel speed. For large-diameter silos with frequent unloading the tractor type sweep auger is recommended.

Frequently Asked Questions

It is required in flat-bottom silos to remove the floor product that does not flow out through the centre outlet; hopper-bottom silos do not need one.

The economy type with its simple drive suits small and medium diameter silos, while the tractor type with its wheeled travel unit suits large-diameter silos that are unloaded frequently.