SCREW CONVEYOR
Compact and Efficient Solutions for Transporting and Dosing Solid Materials
Haco Screw Conveyors (HTH) are versatile industrial solutions for transporting, dosing, or extracting bulk solid materials with fine or medium particle sizes. With a simple and efficient structure, they are ideal for applications requiring compactness, sealing, flow control, and low maintenance.
Used in the cement, fertilizer, food, mining, pulp and paper, chemical and biomass industries, HTHs can operate horizontally, inclined or in special configurations with multiple inlets and outlets.
Functional and Customizable Engineering
Designed to meet different process requirements, Haco Screw Conveyors can be supplied in tubular or trough versions, with or without a central shaft.
Screws sized according to the density, abrasiveness and behavior of the product;
Manufactured from carbon steel, stainless steel or special materials;
Bearings and seals with options for abrasive, wet, or contaminated products;
Gearmotors with direct drive or flexible coupling;
Configurations with multiple inlet or outlet ports, registers, and control valves.
Special Versions and Applications
Conveyor Version: material handling with continuous flow in feeding or discharge lines;
Dosing version: precise flow control with rotation regulated by frequency inverter or bevel geared motor;
Extractor Version: installed under silos, hoppers or surge silos, it ensures controlled extraction with sealing and flow control;
Reversible version: bidirectional flow, useful in mixing systems or alternating product distribution;
Cooled or Heated Version: with thermal jacket for temperature control of the material.
Additional Technical Resources
Rolled, welded or continuous helical screws, depending on the application;
Internal linings made of rubber, UHMW, Hardox, or ceramic;
Removable top cover for quick inspection and cleaning;
Level, rotation, and temperature sensors that can be integrated into PLCs/SCADA systems;
Gasket seals, mechanical seals, or air-purged systems.
Typical Applications
Cement, limestone, gypsum, dry clay;
Granulated or powdered fertilizers (MAP, NPK, urea);
Processed foods, flours, grains and seeds;
Biomass, wood chips, pellets and dry bagasse;
Micronized ores, fly ash and filter dust.
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