Concrete Screw Conveyor
The concrete screw conveyor operates by rotating spiral blades to push materials forward along a trough. Consequently, industries widely deploy it in building material production, such as in concrete mixing plants and dry‑mortar production lines. Therefore, its primary function is to transport powdered materials or fine aggregates—such as cement, fly ash, and mineral powder—from storage silos to mixers or other processing equipment.
Spiral diameter：160-300mm
Warranty: 18 months
Motor power: 3-22KW
Voltage: 220v/380v/415v/440v/480v(50Hz/60Hz)
Structure
The main structure of a concrete screw conveyor includes the following components:
Drive Unit: This unit mainly consists of a motor, reducer, and coupling, providing power to the screw shaft.
Screw Shaft: It consists of a rotating shaft and helical blades welded to it. When the shaft rotates, the helical blades actively propel the material forward.
Trough: The trough is a U-shaped or cylindrical enclosed channel in which the screw shaft rotates. It is typically made of wear-resistant steel plate and lined internally to improve wear resistance.
Inlet and Outlet: The inlet is located at one end of the trough to receive material; the outlet is located at the other end to discharge material.
Support Device: The two ends of the screw shaft are fixed by a support device, which generally includes bearing housings and bearings.
Sealing Device: To prevent material leakage and block external impurities from entering, the conveyor is equipped with sealing structures at the inlet, outlet, and support device.
Working principle
First, the motor starts, driving the screw shaft to rotate via a reducer and coupling. As the screw blades rotate, they actively propel the material forward along the trough. During this process, the screw blades exert thrust on the material, while friction is generated on the trough wall; both actions combine to create a continuous flow of material. The material enters the trough from the inlet, travels along the trough under the propulsion of the screw blades, and is finally discharged from the outlet. Because the screw shaft rotates continuously, this equipment can achieve continuous material conveying, thus meeting the needs of continuous production.
Product Advantages
Simple Structure and Compact Size:
It features a straightforward design and compact dimensions, occupying minimal space while allowing for easy installation and maintenance.
Large Conveying Capacity and High Efficiency:
The system enables continuous material transfer, providing high conveying capacity and efficiency, which makes it suitable for large‑scale production.
Strong Adaptability:
This equipment can convey a variety of powdered, granular, and small‑lump materials, such as cement, fly ash, and mineral powder.
Good Sealing and Environmental Performance:
By employing a fully enclosed structure, the conveyor ensures effective sealing that prevents material leakage and dust emission, thereby meeting environmental standards.
Ease of Operation and Control:
It is simple to operate and readily integrates with automated controls, allowing it to work in conjunction with other equipment to achieve a fully automated production process.
Easy Maintenance:
Maintenance is straightforward, and parts can be replaced conveniently, enabling quick troubleshooting and minimal downtime.
Low Energy Consumption:
The conveyor operates with low energy consumption, resulting in reduced running costs and favorable economic efficiency.
High Reliability:
Manufactured with high‑grade materials and advanced technology, it delivers reliable and durable performance, maintaining stable operation even in demanding environments.
Product Parameters
| Model | LSY160 | LSY200 | LSY250 | LSY300 |
| Spiral diameter (mm) | 160 | 193 | 250 | 300 |
| Conveying length (m) | 2.5-6 | 4.5-12 | 6-9 | 6-9 |
| Spiral speed (r/min) | 100 | 209 | 209 | 174 |
| Shell diameter (mm) | 194 | 219 | 273 | 325 |
| Working angle (°) | ≤20 | ≤45 | ≤45 | ≤45 |
| Conveying capacity (t/h) | 25 | 35 | 50 | 75 |
| Motor model | Y-132M-4 | Y-160M-4 | Y-160L-4 | Y-180L-4 |
| Motor power (kw) | 3-7.5 | 4-11 | 7.5-15 | 11-22 |
