Description
The SP Shaftless screw compactor is a versatile machine designed for handling screenings, efficiently combining three key operations: draining, conveying, and compacting. This machine can be conveniently positioned directly beneath a screen’s discharge chute, or it can be fed by various means such as a spiral conveyor, belt conveyor, or a launder channel.
The machine features a screw (spiral) that rotates within a trough, which is divided into three primary sections: the draining section, typically located before the screenings inlet hopper, where most of the water is discharged; the conveying section, which transports the material towards the final section; and the compacting/dewatering section, where significant reduction in both volume and weight of the material occurs (up to 50%).
To enhance the degree of compaction, the compactor’s discharge end can be equipped with either a spring-controlled cover or a counterweight. In certain applications, a discharge pipe with a “trunk” shape may also be installed.
The screw is directly connected to the drive system, and a mechanical sealing unit is employed to prevent any leakages. The machine operates effectively within a wide range, from angles of 5° to 35°, making it particularly useful when the discharge bin is located far from the screen or when the discharge path requires a combination of distance and slope.
In terms of construction materials, the enclosure can be made from stainless steel 304 or 316, with duplex stainless steel available upon request. The spiral component can be crafted from carbon steel, AISI 304 or 316, and in some configurations, a duplex spiral is also an option. The trough liner can be made from HDPE, UHMWPE, or stainless steel sliding bars.
Key advantages of the SP Shaftless screw compactor include:
- Clog-free operation.
- High flow capacity.
- Easy maintenance and installation.
Additionally, the unit can be customized with a control panel, available in either electromechanical or PLC-controlled formats, to suit various operational requirements and preferences.