Name: Screw Conveyor
Brand: JX Filtration

Description

JX Filtration offers a full range of screw conveyors from compact U-trough units to heavy-duty tubular models, with flexible customization options to suit various conveying distances and material characteristics. Designed for seamless integration with sludge dewatering presses, rotary drum screens, and filtration systems, our screw conveyors support continuous solids transport with low energy consumption and minimal operator attention.

A screw conveyor, also known as a spiral conveyor or auger conveyor, is a mechanical device that uses a rotating helical screw blade to move bulk materials along a trough or tube. The screw conveyor is divided into two types in the form of conveying: the shafted screw conveyor and the shaftless screw conveyor. In terms of appearance, they are divided into U-shaped screw conveyors and tubular screw conveyors. Shafted models are suitable for non-viscous dry powder materials and small granular materials, while shaftless designs excel with sticky, fibrous, and easily clogged materials such as dewatered sludge and filter residue.

Working Principle

Conveying Action: An electric motor drives the screw shaft to rotate through a gear reducer and coupling. Material enters through the inlet and is pushed forward by the rotating helical flights along the trough or tube. The screw rotation moves materials axially without rotating them, ensuring gentle handling for fragile or compressible solids. Material discharge occurs through an outlet located at the desired point along the conveyor length, or at the terminal end.
Shafted vs. Shaftless Design: Shafted screw conveyors use a central shaft to support the helical flights, providing high torque capacity and suitability for free-flowing powders and granules. Shaftless screw conveyors use a heavy-duty spiral without a central shaft, offering a larger cross-sectional area that prevents bridging and clogging when handling sticky or stringy materials.
Integration with Dewatering Systems: In sludge dewatering and filtration processes, screw conveyors transport dewatered solids from press outlets to storage bins, collection hoppers, or disposal containers. The fully enclosed trough ensures dust-free operation and prevents material spillage, maintaining a clean working environment.

Advantages

Simple and compact structure – Small cross-sectional area with low manufacturing cost and convenient operation
Flexible layout – Inlet and outlet positions can be arranged freely to meet multi-point feeding and multi-point discharging requirements
Fully enclosed operation – Sealed trough and cover ensure dust-free, environmentally friendly material handling
Shaftless anti-clogging design – Shaftless models handle sticky, fibrous, and high-moisture materials without bridging or blockage
Abrasion-resistant construction – Carbon steel, stainless steel, or abrasion-resistant steel available to suit material properties
Low maintenance cost – Simple mechanical design with few moving parts minimizes downtime and repair expenses
Adjustable conveying angle – Horizontal or inclined configurations available to suit site layout and discharge requirements
Electrolysis polished surface – Outer surface polished for improved corrosion resistance and easy cleaning