Flexible Screw Conveyor For Fertilizer Granules
Thursday March-12 2026  11:44:37
Flexible Screw Conveyor For Fertilizer Granules is a conveying equipment used in fertilizer production and storage, handling continuous operations such as raw material transfer and finished product conveying. The main body of the equipment is made of stainless steel or carbon steel, with an optional wear-resistant and corrosion-resistant coating to adapt to the corrosive and abrasive characteristics of fertilizer granules. Its conveying distance can reach 30 meters, and the inclination angle can cover 0° to 90°, supporting horizontal, inclined, and vertical multi-path conveying. Common pipe diameters include Φ50, Φ75, Φ90, Φ114, Φ120, Φ130, and Φ140mm, which can be flexibly selected according to material flow rate and particle size.

Fertilizer granules are typically fragile, dusty, corrosive, and irregularly shaped. During conveying, they are easily broken by severe impact or compression, and dust may also spread along the conveying path. Ordinary rigid screw conveyors rely on fixed blades and troughs; at high speeds, the blades experience strong friction with the granules, easily causing particle breakage, and dust can easily escape from the gaps. Flexible screw conveyors overcome the difficulties faced by rigid conveyors, and with a conveying capacity of approximately 1-20 t/h, they can meet the needs of fertilizer plants and other factories for conveying fertilizer granules.
Working Principle of Flexible Screw Conveyor for Fertilizer Granules
Flexible screw conveyors for fertilizer granules work by using rotating flexible screw blades inside the pipe to propel the material forward. The equipment structure consists of a drive motor, reduction gear, inlet, flexible screw shaft, conveying pipe, and outlet. When the motor starts, the screw rotates continuously in the pipe, and the fertilizer granules are propelled slowly forward along the pipe and discharged at the outlet. The flexible screw structure creates a stable material propulsion force within the pipe, allowing the granules to move smoothly along the pipe wall and reducing violent tumbling or impact. The pipe can be curved according to the production space to adapt to the connection requirements between different equipment. This structure provides good continuity and stability when conveying granular materials.

Technical Specifications of Flexible Screw Conveyor for Fertilizer Granules
| Model | Screw Diameter (mm) | Capacity (t/h) | Conveying Length (m) | Motor Power (kW) | Material |
| FS-100 | 100 | 0.5 - 1.5 | ≤10 | 0.75 | Carbon Steel / Stainless Steel 304 |
| FS-150 | 150 | 1 - 3 | ≤12 | 1.1 | Carbon Steel / Stainless Steel 304 |
| FS-200 | 200 | 2 - 5 | ≤15 | 2.2 | Carbon Steel / Stainless Steel 304 |
| FS-250 | 250 | 4 - 8 | ≤18 | 3.0 | Carbon Steel / Stainless Steel 304 |
| FS-300 | 300 | 6 - 12 | ≤20 | 4.0 | Carbon Steel / Stainless Steel 304 |
| FS-350 | 350 | 10 - 18 | ≤25 | 5.5 | Carbon Steel / Stainless Steel 304 |
Features of Flexible Screw Conveyor for Fertilizer Granules
The Flexible Screw Conveyor for Fertilizer Granules possesses several characteristics suitable for fertilizer granules. The flexible screw conveyor avoids the strong compression of rigid blades, buffering friction between granules and between granules and the tube wall, reducing breakage and ensuring granule integrity. The fully enclosed conveying structure blocks dust diffusion at the source, and with well-sealed interfaces, effectively controls dust escape, maintaining a clean working environment. The flexible outer tube can bend in a single plane, supporting horizontal, inclined, and vertical multi-directional conveying without altering the overall equipment layout, adapting to narrow spaces and complex process routes. The equipment has a simple structure with few moving parts, requiring only daily cleaning and routine checks, minimizing potential failure points; the helical spring core and flexible tube can be quickly disassembled, allowing for single-person disassembly and cleaning, reducing downtime.

Applications of Flexible Screw Conveyor for Fertilizer Granules
Flexible Screw Conveyor for Fertilizer Granules has diverse applications in the fertilizer industry. For example, in granular fertilizer production lines, the equipment can be used for conveying between granulators and screening equipment; in packaging workshops, it can transport finished granules from storage silos to automatic packaging machines; and in warehousing systems, it can be used to transfer bulk fertilizer from storage silos to loading equipment. Furthermore, it can be applied in fertilizer compounding workshops to achieve the mixing and conveying of fertilizer granules with different components, simultaneously completing material transfer and uniform mixing, thus improving compounding efficiency.

Flexible Screw Conveyor for Fertilizer Granules provides a solution for fertilizer granule conveying that adapts to complex production environments. Through a flexible spiral and sealed pipeline structure, it solves the conveying challenges of fragile, dusty, corrosive, and irregular granules. From the production workshop to warehousing and packaging, this equipment can flexibly adapt to various conveying scenarios, ensuring the integrity of fertilizer granules and a clean working environment, while reducing equipment maintenance costs and improving the stability of conveying operations.




