Powder Handling System


  SCREW CONVEYORS & FEEDERS -- [ Trough Screw Conveyors ]
Description :

The modular Trough Screw Conveyor system is highly versatile offering numerous solutions for conveying powdery or granular materials. Screw Conveyors are manufactured from carbon steel with a suitable surface finishing. They are made up from a U or V-shape trough that is equipped with at least one outlet spout, an end plate at each trough end, helicoid screw flighting welded on a centre pipe with a coupling bush at each end, two end bearing assemblies complete with shaft sealing unit, a certain number of intermediate hanger bearings depending on the overall length of the screw conveyor, and a bolted trough cover usually equipped with at least one inlet spout. Furthermore, Trough Screw Conveyors are equipped with a gear motor that suits the application. Depending on the material to be handled Trough Screw Conveyors come in a light, medium-heavy, or extra-heavy-duty design.

Function :

The light-duty version is mainly used to convey powders or granular materials in the production of pet-food, in the plastics industry, and in soap, washing powder and detergent processing. The medium-heavy-duty version is mainly used in animal feed milling, in wood processing, in the chemical industry, and in environmental technology for both municipal and industrial applications. The extra-heavy-duty version is mainly used in the cement / lime /gypsum, as well as in the mining industry. According to the application various types of screws, inlet and outlet spout models are available.

Performance & Technical Features and Benefits

  • Helicoid flightings welded on centre pipe made from carbon steel or stainless steel
  • Trough in modular flanged sections made from carbon steel or stainless steel in standard lenghts
  • Flanged end bearing assemblies protected against material infiltration by shaft sealing units
  • Robust cast iron body flanged end bearing assemblies with externally positioned bearing units and manually adjustable packed gland seals
  • Square or rectangular inlet and outlet ports with integrated drilled flanges
  • Drive units mounted at inlet or outlet end:
  • Bare shaft
  • Direct compact gear motor drive
  • Direct gear motor drive with semi-elastic coupling
  • Offset gear motor drive with chain transmission
  • Offset drive with belt transmission
For the light duty version:
  • Splined shaft couplings (bolted couplings for stainless steel version)
  • Maintenance-free intermediate cast or fabricated hanger bearings with self-lubricating slide bushes
For the medium heavy duty version:
  • Maintenance-free intermediate cast hanger bearings with self-lubricating slide bushes
  • Splined shaft couplings
For the extra heavy duty version:
  • Intermediate steel or cast hanger bearings with slide bushes
  • Flanged shaft couplings
  • Offset drive with belt transmission and with semi-elastic coupling

Options & Accessories

  • Square, rectangular or circular substitute/additional inlet/outlet spouts with or without connecting flange
  • Trough feet
  • Overflow hatches
  • Screws in various configurations (ribbon flight, paddles, others)
  • Screw conveyors manufactured from wear-resistant materials
  • Special shaft seals (gas or air-purged, grease chamber, others)
  • Different drive configurations
for the medium heavy duty version
  • Screws made from special wear-resistant materials
    for the extra heavy duty versioni
  • Air purge shaft seals
  • Inspection hatches
  • Slide gates


Home Profile Products Feedback Branches Enquiry Contact us