LIAONING QIUSHI Launches High-Efficiency Drag Conveyors: Elevating Grain Handling in Silo Systems

11-08-2025

In the realm of grain storage and logistics, efficient material handling is the linchpin of seamless operations. LIAONING QIUSHI Silo Equipment Engineering Co., Ltd., a leader in silo solutions, introduces its newly optimized drag conveyors—engineered to streamline grain transfer within silo complexes, bulk storage facilities, and processing plants. Designed for durability, versatility, and low maintenance, these conveyors are set to redefine efficiency in grain handling.

Engineering Excellence: Tailored for Grain Dynamics

Unlike generic conveyors, LIAONING QIUSHI’s drag conveyors are precision-engineered to address the unique challenges of grain handling—abrasiveness, dust, and the need for gentle transfer to avoid grain damage:

Robust Structural Design: The conveyor features a heavy-gauge steel trough (thickness ≥6mm) with wear-resistant liners made from high-density polyethylene (HDPE), reducing friction and extending service life by 50% compared to standard steel troughs. This is critical for handling hard grains like corn and wheat, which can cause rapid wear.
Efficient Chain & Flight System: Equipped with heat-treated alloy steel chains (tensile strength ≥1,200MPa) and low-profile flights, the conveyor ensures uniform material flow with minimal residue. The flights are spaced at 300–500mm intervals, optimized to prevent grain bridging or clogging—even at inclines up to 15°.
Dust & Contamination Control: A fully enclosed trough design, paired with rubber gaskets at joint points, minimizes dust emissions—a key advantage for maintaining air quality and complying with food safety standards (e.g., EU 10/2011). The system also includes easy-access inspection hatches for quick cleaning, reducing the risk of cross-contamination between grain batches.

Versatility Across Applications

LIAONING QIUSHI’s drag conveyors are adaptable to diverse operational needs, making them a cornerstone of integrated silo systems:

Silo-to-Silo Transfer: Ideal for moving grain between storage silos, with customizable lengths (3–50m) and capacities (50–300 tons/hour) to match facility scales. The compact design fits seamlessly in tight spaces, eliminating the need for extensive site modifications.
Integration with Processing Lines: When paired with the company’s hydraulic tilting platforms and bucket elevators, the conveyors create a continuous handling loop—from truck unloading to silo storage, and finally to processing equipment (e.g., mills or dryers). This integration reduces manual intervention and cuts transfer time by 30%.
Harsh Environment Adaptability: The conveyors are treated with anti-corrosion coatings (zinc-rich primer + polyurethane topcoat) to withstand humid silo interiors or outdoor installations. For cold climates (e.g., 东北地区 or Russia), optional heating elements prevent grain from freezing to the trough during winter operations.

Reliability & Low Maintenance: Designed for Long-Term Value

Understanding the costs of downtime in grain operations, LIAONING QIUSHI prioritized reliability in every component:

Self-Lubricating Components: Chain bushings and sprockets use self-lubricating materials, reducing the need for frequent maintenance. A centralized lubrication system is available as an option for high-capacity units, extending service intervals to 1,000 operating hours.
Smart Monitoring: Optional sensors track chain tension, motor load, and trough temperature, sending real-time alerts to the control system. This predictive maintenance feature helps prevent unexpected breakdowns—critical during peak harvest seasons.
Easy Replacement Parts: Standardized components (chains, flights, bearings) ensure quick replacements, with global availability through the company’s spare parts network. This minimizes downtime, even in remote locations.

Field-Proven Performance

In a recent project at a 10,000-ton grain storage complex in Inner Mongolia, three of LIAONING QIUSHI’s drag conveyors (capacity 200 tons/hour) were integrated into the silo system. The facility reported a 40% reduction in grain transfer time and a 25% drop in maintenance costs compared to their previous conveyor setup. “These conveyors handle our daily grain movements—from trucks to silos and back—without a hitch,” noted the site manager. “Even during our busiest harvest months, we haven’t experienced a single breakdown.”

Committed to Innovation

“Drag conveyors are the unsung heroes of grain silo operations—their efficiency directly impacts a facility’s bottom line,” said LIAONING QIUSHI’s R&D Director. “Our design focuses on durability, adaptability, and ease of use, ensuring our clients can handle more grain with less hassle.”

As part of the company’s full-line silo solutions, these drag conveyors complement LIAONING QIUSHI’s steel silos, hydraulic equipment, and smart monitoring systems—offering clients a one-stop shop for integrated grain storage and handling.

For more information on custom drag conveyor solutions, visit www.qssilo.com or contact sales@qssilo.com.

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