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| Description |
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The SSC shaftless screw conveyor is an alternative concept to the traditional shafted screw conveyor. Shaftless screws are available from 6” to 24” diameters in single flight and 9” to 24” diameter in double flight configurations. Material is conveyed by an extra-heavy-duty shaftless screw that slides on a wear-resistant liner inside the conveyor trough housing. The U-troughs are manufactured in carbon steel or in 304 L / 316 L stainless steel, including an appropriate surface treatment. The lower part of the trough has an appropriate liner installed. At one trough end there is a standard bottom discharge or open end type outlet. At the drive end the screw conveyor is equipped with an end plate holding the end bearing assembly with flanged shaft coupling with the screw. The drive unit installed suits the application.
The SSC can be loaded from above into the open trough (standard), or through an inlet spout included in a bolted trough cover (option), or from the side through a special side inlet in the loading zone of the trough (option). |
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| Function |
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The Shaftless Screw (spiral) offers a larger volume capacity and the capability of handling particularly difficult materials such as those that tend to become tangled up or those that present highly variable particle size. Construction material properties, oversize thickness, as well as a special manufacturing process make the spiral highly resistant and extremely durable. Due to the absence of intermediate bearings, obstacle-free material handling is guaranteed. The completely enclosed trough prevents any material leakage. Trough covers with appropriate gaskets enable odor-free operation and prevent contaminants from entering the system. At the same time the conveyor offers maximum access to the inside for inspection and cleaning. Maintenance is reduced to the minimum due to a small number of components. There is a vast choice of liners depending on the specific material characteristics.
SSC Shaftless Screw (Spiral) Conveyors have been specially designed for handling of difficult heterogeneous materials like urban solid waste, screenings and floating matter, de-watered, thickened, conditioned sludge, packaged food, waste from: meat, fish, fruit and vegetable processing. These screws have also been used successfully in dry abrasive products such as cement, sand, and abrasive dusts. The main sectors of application are wastewater treatment, sugar mill waste products, fish industry, solid waste treatment, fruit and vegetable processing plants, beverage industry, cement packaging, cement mills, dust collection, pulp and paper, chemical industry, food industry in general, meat processing plants, rendering plants, slaughterhouses, restaurants, canteens, catering in general. |
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| Performance & Technical Features - Benefits |
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- Throughput rates up to 4200 CFH
- Drive power: 0.75 HP to 10 HP
- Trough and spiral manufactured in carbon or 304 L or 316 L stainless steel
- Trough liner in UHMW
- Small footprint
- Odor-free operation
- High efficiency
- Complete emptying
- Simple design (few components)
- Easy to access and to clean
- Low maintenance
- Modular components enable easy adaptation to various problems (results in an extremely versatile conveyor for a variety of “DIFFICULT” materials for a large number of applications)
- High degree of self-cleaning
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| Options & Accessories |
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- Bolted or clamped trough cover
- Special inlets
- Inspection and overflow hatches
- Drainage kit
- Trough feet
- Washing nozzles
- Different types of drives: direct, coupling transmission, chain transmission, belt transmission
- Different liners available with wear indicators, bottom bars or plates, white or black color plastic
- Hold down angles to guide spiral in trough
- Multiple screw live bottoms
- Special diameters and pitches available
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