Tapered twin shaft screw feeders for bulk solids
In industries handling non-homogeneous materials like wood chippings or flour, maintaining consistent flow and avoiding material bridging are common challenges. Efficiently discharging and feeding from bins or hoppers is crucial to ensure smooth operations and prevent costly production disruptions.

Efficiently feed and discharge difficult materials
The BU Twin Shaft Screw Feeder by WAMGROUP is designed to provide efficient discharging and feeding from bins or hoppers, particularly for non-homogeneous and bridging materials. The BU features tapered inlet sections that facilitate mass flow and prevent material segregation. Constructed from powder-coated carbon steel, the feeder’s robust design includes maintenance-free flanged cast iron end bearing assemblies and self-lubricating slide bushes. It is ATEX, Zone 22 certified, making it suitable for use in potentially explosive environments. Typical applications include the handling of wood chippings, bran, flour, sawdust, and soy in industries such as flour milling and feed production. The BU’s modular design allows for easy access and customization to meet specific operational needs, while fixed or variable speed gear motors ensure reliable and constant feed rates.
Benefits
- Prevents material bridging
- Ensures continuous feeding with difficult materials
- High degree of self-cleaning
- Customizable for specific needs
- Certified for use in explosive atmospheres (ATEX, Zone 22)