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| Description |
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The modular CAO Tubular Screw Conveyor system is highly versatile offering numerous solutions for conveying powdery or granular materials. CAO Screw Conveyors are manufactured from carbon steel with a suitable surface finishing. They are made up from a tubular trough that is equipped with at least one inlet and outlet spout, an end plate at each tubular trough end, helicoid screw flighting welded on a centre pipe with a coupling bush at each end, two end bearing assemblies complete with adjustable shaft sealing unit, and a number of intermediate hanger bearings depending on the overall length of the screw conveyor. Furthermore, CAO Tubular Screw Conveyors are equipped with a gear motor that suits the application.
Depending on the material to be handled, CAO Tubular Screw Conveyors come in a light or medium-heavy-duty design.
Both types are available with ATEX, zone 22 certification.
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| Function |
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| The light-duty version, CAO…L, is mainly used for feeding and conveying flour and flour milling by-products. The medium-heavy-duty version, CAO…P, is mainly used in animal feed milling with products such as cereals, meals and milling by-products. In general, CAO Tubular Screw Conveyors and Feeders are suitable for applications in which a minimum material residue and maximum conservation of the particle size of the material during handling is required. |
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| Performance & Technical Features - Benefits |
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- Powder-coated
- Standard length tubular sections
- Helicoid flighting welded on centre pipe
- Flanged end bearing assemblies protected against material infiltration by adjustable shaft sealing units
- Wide range of intermediate hanger bearings designed for specific applications (self-lubricating versions included)
- Round, square or rectangular inlet and outlet spouts complete with drilled flanges according to WAM® standards
- Robust cast iron body, flanged end bearing assemblies with externally positioned bearing units and manually adjustable packed gland seals
- Maintenance-free or non intermediate cast or fabricated hanger bearings with self-lubricating and other slide bushes
- Splined shaft couplings
- 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 light-duty version:
- Light-duty helicoid flighting welded on centre pipe in carbon steel or stainless steel
- Robust tubular trough in modular flanged sections in carbon steel or stainless steel
For medium-heavy-duty version
- Medium-heavy duty helicoid flighting welded on centre pipe in carbon steel
- Robust tubular trough in modular flanged sections in carbon steel
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| Options & Accessories |
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- 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)
- Special shaft seals (gas or air-purged, grease chamber, others)
- Different drive configurations
- Jacketed outside tube
- Drop bottom tube
- Slide gates
- Flush outlets
For medium-heavy-duty version
- Screws in special wear-resistant materials
BOTH TYPES AVAILABLE WITH ATEX, ZONE 22 CERTIFICATION.
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