LS Type Screw Conveyor
The LS Type Screw Conveyor is a high-efficiency enclosed conveying equipment developed by our company adopting German technical standards. Specifically designed for powdered, granular and small lump materials, this model has become the ideal choice for long-distance conveying in industries including building materials, chemicals, grain and metallurgy thanks to its fully sealed structure and optimized screw design.
- Excellent Sealing
- High Efficiency
- Energy Saving
- Multiple Installation Options
- Low Maintenance Cost
Industry-Leading Screw Conveyor Manufacturer
As a leading LS Type Screw Conveyor manufacturer, DARKO brings over 10 years of expertise in bulk material handling. Our ISO-certified conveying systems, exported to 30+ countries, deliver reliable solutions for cement, metallurgy, chemical, and grain processing applications – combining energy efficiency with durable construction and smart conveying technology.
Reliable Material Transportation Solutions
- Core Specifications Comparison
- Detailed Technical Parameters
- Structural Features
| Model | Capacity(m³/h) | Max.Length(m) | Power Range(kW) | Temp.Range | Standard Material | Optional Configurations |
|---|---|---|---|---|---|---|
| LS100 | 1.1-2.2 | 15 | 1.5-3 | -20~200℃ | Q235 Carbon Steel | Stainless/Explosion-proof |
| LS160 | 4-8 | 20 | 2.2-5.5 | -20~200℃ | Q235 Carbon Steel | Wear-resistant Coating |
| LS200 | 7-14 | 25 | 3-7.5 | -20~200℃ | Q235 Carbon Steel | Variable Frequency Drive |
| LS250 | 13-24 | 30 | 4-11 | -20~200℃ | Q235 Carbon Steel | High-Temperature Version |
| LS315 | 16-34 | 40 | 5.5-15 | -20~200℃ | Q235 Carbon Steel | Smart Monitoring |
| LS400 | 34-64 | 50 | 7.5-18.5 | -20~200℃ | Q235 Carbon Steel | Ceramic Lining |
| LS500 | 52-100 | 60 | 11-22 | -20~200℃ | Q235 Carbon Steel | Corrosion-resistant |
| LS630 | 80-145 | 70 | 15-30 | -20~200℃ | Q235 Carbon Steel | Heavy-duty Design |
| Parameter | Technical Specification |
|---|---|
| Screw Diameter | 100mm |
| Screw Pitch | 100mm |
| Speed Range | 71-140rpm (4 adjustable grades) |
| Corresponding Capacity | 1.1(71rpm)-2.2m³/h(140rpm) |
| Trough Thickness | 4mm (Standard)/6mm (Reinforced Option) |
| Hanger Bearing Spacing | 1.5m (Standard)/3m (Long-distance) |
| Flange Standard | GB/T 9119-2010 |
| Unit Weight | ≈85kg/m (Carbon Steel Standard) |
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Advanced Drive Unit: Equipped with SEW/Nord geared motors for smooth operation
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Wear-Resistant Screw: Wear-resistant alloy welded on blade edges (ceramic lining optional)
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Smart Monitoring: Optional temperature and vibration sensors
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Quick-Dismantle Structure: Hanging bearings feature quick-release design for easy maintenance
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Anti-Clogging Design: Variable diameter and pitch screw prevents material accumulation
LS-type Screw Conveyor Working Principle
The LS-type screw conveyor achieves continuous material conveying through rotating helical blades: When the motor drives the screw shaft to rotate, materials within the enclosed space formed by the blades and pipe wall are subjected to axial thrust. Simultaneously, internal friction between material particles creates a stable flow layer, enabling directional transportation from the inlet to the outlet. Its unique features include a fully sealed pipe design and variable-diameter/variable-pitch screw structure, which not only prevents dust leakage but also allows adjustment of conveying efficiency according to different material characteristics, with precisely controllable capacity (Q=47×D²×n×ψ×ρ, where D is screw diameter, n is rotation speed, ψ is fill factor, and ρ is material density).
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Selection Guide
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Determine Material: Provide material name, bulk density, moisture content etc.
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Calculate Capacity: Determine hourly conveying capacity according to process requirements
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Select Installation: Horizontal/inclined/vertical conveying
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Special Requirements: High temperature resistance, explosion proof, corrosion resistance etc.
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Contact Us: Professional engineers provide free selection service
Choose LS Type for long distance (>30m) and sealed conveying; U Type for short distance and frequent maintenance needs
High temperature version available with special materials and cooling structure (up to 400℃)
10+ years for main structure and 5-8 years for screw blades with proper use and maintenance