
U-Trough Screw Conveyor
This U-trough screw auger acts as core feeding equipment for powder, granular materials and fine fragments in automated batching and weighing production lines.
Unlike tubular screw conveyors, the open U-trough structure enables easier internal cleaning and routine inspection. It supports horizontal installation or inclined layout up to 45°, and can work independently or link seamlessly with factory PLC and MES intelligent management systems.
Multiple build options are available: carbon steel, food-grade stainless steel and anti-corrosion stainless steel, with customizable explosion-proof and high-temperature versions. The auger addresses widespread production pain points including severe dust emission, excessive raw material loss, heavy manual labor and limited production efficiency, serving lithium new energy, food & pharmaceutical, chemical, feed, cement and refractory material industries.

HJL Screw Conveyor

HJL Scraper Conveyor
Working Logic
Rotating helical flights inside the U-trough create axial thrust to continuously push bulk materials forward.
Equipped with variable frequency drive, the machine flexibly adjusts conveying speed to match line cycle, minimizing blockages even when processing ultra-light powder and easily agglomerated mixtures.
All operating data can be synchronized with digital workshop systems for remote real-time monitoring and automatic fault alerts.

Practical Advantages for Manufacturers
- Compatible with full-automatic production lines to cut labor costs
Built-in signal ports support synchronous start-stop and speed linkage with loss-in-weight scales and automatic batching machines.
Connection with factory digital platforms enables real-time data tracking and early fault warnings, perfectly matching unmanned smart factory layouts.
- Fluid-optimized flights to reduce blockage risks
Helical flights are designed via fluid simulation with optimized gaps to deliver even, stable material propulsion.
The machine runs smoothly with ultrafine powder and agglomerated materials. Adjustable flow adapts variable capacity demands and boosts overall line productivity.
- Full sealed construction to reduce raw material waste
Closed U-trough paired with multi-layer shaft seals prevents dust spillage at source, improving workshop working conditions while avoiding material dampness and cross-contamination.
Stainless steel fully sealed units meet dust-free and sterile standards for food, pharmaceutical and lithium raw material production.
- Multiple material grades for long service life under harsh conditions
Cost-efficient carbon steel suits cement, feed and general chemical production.
SUS304 and SUS316L stainless steel resist rust and acid-alkali corrosion, easy to clean for sanitary and corrosive materials.
Flights can receive wear-resistant hardening treatment to sustain long-hour non-stop operation with low failure rates.
- Compact size with flexible installation for all plant layouts
Small overall footprint fits narrow production zones.
Floor mounting and overhead suspension installation are both supported.
Trough length, inlet/outlet positions and conveying angles can be tailor-made to fit new production lines or old workshop renovation projects.
- Low long-term operation and maintenance costs
Simplified mechanical layout paired with open U-trough design allows easy internal residue cleaning.
Low-noise energy-saving drives lower power consumption.
Seals, bearings and other wear parts are common standard parts with accessible supply.
Only routine cleaning and lubrication are required to maintain stable long-term operation.
- Custom design & one-stop engineering solutions
Beyond standard models, non-standard equipment can be customized for explosion-proof, high-temperature, anti-caking, extended trough length and special flange interface requirements.
The full service covers customized drawing design, manufacturing, factory pre-test and on-site commissioning to deliver complete conveying solutions for all types of industrial working conditions.


Global Buyer Support
As a professional bulk conveying machinery supplier, comprehensive cross-border services are provided for worldwide customers:
- Custom drawing design based on your site layout, material properties and target hourly capacity
- Global fast spare parts supply
- English technical manuals, remote video installation guidance and online troubleshooting
- Full factory pre-inspection and test before shipment to guarantee stable machine performance

Need customized model matching your production line, technical drawings and accurate quotation?
Submit your inquiry now, our engineering sales team will send full solution within 24 working hours.