Classifiers

Screw classifiers are used to separate water and silt, and other unwanted fines from sand while dewatering. Screw classifiers are built in single or twin-screw configurations with a large settling and are for best salvage of fine sands.

The Osborn range of equipment is renowned for its ruggedness. Years of design improvements and field experience gleaned from crusher installations throughout the world are represented in our line of classifiers.

Screw Classifiers

Telsmith Screw Classifiers come in a wide range of sizes to cover nearly all requirements and specifications. Screw classifiers are used to separate water and silt and other unwanted fines from sand while dewatering and are built in single or twin-screw configurations with a large settling area for best salvage of fine sands.

Sand Classifiers

Telsmith Sand Classifiers are elevating screws operating at a slow speed to separate sand 10 mm and smaller so it can be dewatered sufficiently to be carried on an inclined conveyor. Unwanted clay and debris is floated over the adjustable weirs.

Normally, feed to sand classifiers comes from a washing screen or from the discharge of a dewateirng and classifying tank. Telsmith Sand Classifiers are available in capacities from 6 to 364 tph.

Telsmith classifiers for years have been a major factor in high volume production at plants where product requirements are strict, capacities huge, and up-to-date low maintenance machine design is a must.

Now they have been made even more productive with better surge control techniques, faster sand settling, separating and dewatering. Full three side overflow distributes water over a wider area, turbulence is reduced to a mere ripple, sand settles in a quiet pool area, while waste is flushed out smoothly and effectively.

Telsmith does carry a coarse material washer type screw classifier for the +10 mm to 50 mm material range. This classifier is used mainly for washing. The beaters or arms create a big turbulence in the pool area, to move the material around for better washing.