Description
Screw conveyors, are industrial systems designed for the continuous handling of bulk materials such as sawdust, wood chips, pellets, biomass, granules or powders. They can operate in horizontal, inclined or even vertical configurations, making them suitable for multiple stages of the production process.
Function and operating principle
These conveyors work through a rotating helical screw housed inside a trough or tubular enclosure. As the screw rotates, the material is conveyed along its length in a controlled and continuous manner. This enclosed transport method helps minimise dust emissions, prevents spillage and ensures clean, safe and efficient movement of bulk materials.
Versatility and main applications
Thanks to their versatility, screw conveyors are widely used in sawmills, pellet production units, biomass plants, recycling facilities and agro-industrial environments. Their compact construction and modular design make them easy to install even in confined spaces or complex industrial layouts, ensuring seamless integration with existing processing lines.
Custom-built configurations
Each screw conveyor is engineered according to specific operational requirements, considering material characteristics, particle size, moisture levels, required length, inclination angle, screw diameter and expected throughput. Multiple versions are available, with options for different discharge points, sealing systems, wear linings and drive configurations.
Integration into industrial production lines
Screw conveyors can be installed in new industrial lines or integrated into existing systems, connecting silos, hoppers, cyclones, filters and downstream machinery. Their modular structure makes it possible to overcome layout constraints, changes in direction or height differences while maintaining stable and continuous flow.
Bartly solutions for bulk material handling
Manufactured by Irmach and marketed under the Bartly brand, screw conveyors are built to ensure mechanical strength, long service life and low maintenance. Their robust construction and high level of customisation make them a reliable solution for the efficient handling of bulk solid materials in demanding industrial environments.
Advantages of Bartly screw conveyors
Screw conveyors offer enclosed material transport, reduced dust emissions, adaptability to various inclinations, compatibility with a wide range of bulk materials and easy integration into industrial production lines, contributing to increased efficiency and production continuity.
Frequently Asked Questions
What materials can screw conveyors handle?
Screw conveyors are suitable for transporting sawdust, wood chips, pellets, biomass, granules, powders and other bulk or fine materials. Each system is sized according to the characteristics of the material to be moved.
Can screw conveyors operate at an incline?
Yes. Screw conveyors can operate horizontally, at an incline and, in certain configurations, in near-vertical applications. The optimal angle and screw design depend on the material type and required throughput.
Are screw conveyors custom-built?
Yes. Every screw conveyor is custom-designed according to the working conditions, installation layout, required capacity and material properties.
Can screw conveyors be installed in existing lines?
Yes. Screw conveyors can be integrated into existing lines with adjustments to heights, loading interfaces, discharge points and automation systems.

