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Bulk Technik cc


Screw Conveyors, Twin Screw Conveyors

Bulk Technik supplies both tubular and trough screw conveyors of various sizes and lengths with drives to match the capacity. The screw conveyors can be installed horizontally or inclined at angles and they can be supplied in mild steel or different grades of stainless steel.
The standard tubular conveyor sizes range from 100 NB to 500 NB with their lengths being limited by the deflection of the internal screw flight shaft. Generally we do not recommend the use of centre bearings for the tubular screw conveyors, because these often lead to material blockages and maintenance issues. The tubular conveyors are supplied with a housing that has an inspection hatch on the inlet and discharge side. A screw flight with both a drive and idler shaft is custom designed for the application with specific attention given to the type of spiral that is used (solid, ribbon, tapering, increasing pitch, double pitch) as well as the materials of construction. The drive side is fitted with a stuffing box type seal, a plummer block bearing that is sized for both the radial and axial loads which result from conveying the material, a disk type coupling with guard as well as a geared motor. The non driven side is usually fitted with a flange bearing arrangement, however, this can also be supplied with a stuffing box seal and plummer block bearing.
The Bulk Technik trough screw conveyors essentially consist of a housing that is fabricated from plate, a number of removable covers as well an inlet and end section. This type of screw conveyor is more suited for the use of hanger bearings, hence these conveyors can be supplied in much longer lengths than their tubular counterparts. The screw flight will also be custom designed to suit the client requirements and the product type. The drive side will have a stuffing box type seal, a plummer block bearing, a disk type coupling with guard and a geared motor. The non driven side will be supplied with either a flange bearing or plummer block bearing.
Other type of screw conveyors that Bulk Technik can supply include: twin screw conveyors, mixing conveyors, cooling conveyors, reversible conveyors and conveyors with multiple inlets.

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