Hongrui's Helix Sweep Auger is specially designed for grains such as soybeans, corn, wheat, barley, rice, rapeseed, and sugar beet pulp. With nearly 30 years of expertise in grain storage and logistics, our equipment has proven its reliability under challenging working conditions, including caked soybeans, poor flowing of rice, and frozen corn.
To address the severe caking problem of soybeans in silos, we developed the External Motor Helix Silo Unloader, a patented solution based on decades of engineering experience.
Core Functions and Applications
1. Application: Designed for vertical silos storing soybeans.
2. Core Function: Serves as the key discharge equipment inside silos, forcibly unloading and breaking arches of caked soybeans, while transporting the material to the bottom conveyors for the next process.
3. Installation: The main body is installed inside the silo, while the drive motor is located outside, ensuring higher safety.
Key Technical Innovations & Advantages
1. Superior Arch-Breaking and Unloading Capacity
Unique sectional design: the screw diameter is larger than the trough height, ensuring the auger first contacts and crushes caked material, preventing blockage and immobilization.
2. Advanced Anti-Collapse and Automation (Twin-Screw System)
An auxiliary screw is installed behind the main auger, featuring strong wrapping ability and low starting resistance.
When the main auger is buried by collapsed grain, the auxiliary auger activates first, unloading pressure and enabling recovery.
Enables fully automated, unmanned operation, eliminating manual intervention.
3. High Power and Reliability
Reinforced drive design ensures reliable startup even under harsh conditions: high-moisture grain, full capacity, or heavy loads.
Capable of starting smoothly at 120% rated load and continuous 24-hour full-load operation without current overload.
4. Grain Quality Protection
Auger prioritizes bottom grain discharge, ensuring even mixing with free-flowing upper grain.
Prevents layering and guarantees uniform outflow.
Safety & Explosion-Proof Design
Certified explosion-proof for all components, meeting Zone 21 dust explosion-proof standards, with official certification.
Transmission efficiency is enhanced by placing the motor outside the silo, meeting Zone 20 explosion-proof requirements inside.
Control & Operation
1. Core Control
Siemens PLC-based automatic control system.
Equipped with Siemens HMI touchscreen, Ethernet/DP communication ports.
Supports remote/local switch and manual/automatic modes.
2. One-Button Auto Operation
In automatic mode, one click enables full operation.
The system regulates movement based on the auger motor current (forward, stop, reverse) to prevent overload.
3. Remote Debugging
Portable remote controller for easy on-site debugging and maintenance without being tied to the main control cabinet.
4. Remote Monitoring
Real-time equipment status and control signals can be transmitted to the client's supervisory system.
