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Conveyors Designed for the Final Stage of Solids Removal

The ULB/ULT (shaftless) and USB/UST (shafted) Series of drainage and non-drainage conveyors are suitable for conveying most solids in the final stage of solids removal in municipal wastewater at the headworks, after screening. The units consist of a spiral assembly (shaftless or shafted), transport housing with drainage screen and drain outlet, covers with inlet and outlet fittings, drive system, mounting legs, and controls (optional).

The screw conveyor is a robust and reliable technology typically used to transport solids, semi-solids, and nonflowing solids.


  • Corrosion resistance – the equipment can handle wastewater with lower pH, unlike carbon steel which will rust over time
  • Packaged solution with rotary drum screen for screening and solids removal


  • 304 stainless steel construction
  • Inspection port with easy-access hatches
  • Shaft-mounted TEFC washdown-duty motor and gearbox allow washdown at the end of each shift
  • Fully enclosed, CEMA 300-compliant with inspection ports for ease of periodic maintenance


  • 6, 8, 10, 12, 16 and 20-inch models
  • 1 to 16 cubic yards/hour of wet solids (35% loading @ 18 RPM – municipal sewage)
  • The length of the conveyor is based on customer requirements