U-Shaped Auger Conveyor for High-Capacity Industrial Material Handling
The LS Series Screw Conveyor is an open-trough auger system manufactured to the JB/T 7679-95 industrial standard. Featuring a U-shaped trough with a removable, bolt-on dustproof cover, it gives operators direct top access for easy inspection, cleaning, and field maintenance. It handles bulk powders, granules, and small particles across capacities up to roughly 500 m³/h and horizontal or inclined conveying angles up to 45°.
Key Operational Advantages
Wide Capacity & Length Range: Handles throughputs up to 500 m³/h across modular conveying lengths ranging from 4 to 70 meters.
Heavy-Duty Industrial Build: Constructed from Q235B carbon steel or 304/316L stainless steel, offering a service life of 15 to 20 years.
Key Technical Specifications
Conveying Capacity & Incline: Throughputs from 2.2 to 500+ m³/h across horizontal and inclined angles from 0° to 45°.
Dimensions & Materials: Screw diameters from 100 to 1,250 mm, lengths up to 70 meters, and Q235B carbon steel or 304/316L stainless options.
Operating Limits & Drives: Handles material temperatures up to 180°C–200°C with motor options up to 55 kW and cycloidal pinwheel reducers.
Why Choose the LS Screw Conveyor?
As an ISO & CE-certified screw conveyor supplier in China, Senotay delivers systems that balance efficiency, reliability, and customization. The LS Screw Conveyor stands out due to:
High Reliability & Durability – Engineered for 15–20 years of service life under normal industrial conditions.
Flexible Configuration – Available in diameters from 100 mm to 1250 mm, with conveying lengths from 4 to 70 meters.
Energy Efficiency – Equipped with high-torque, low-vibration reducers and optimized motor systems for smooth, quiet performance.
Strong Adaptability – Effective for both horizontal and inclined transport (≤45°), suitable for multiple industrial environments.
Global Safety & Quality Standards – Complying with CE, ISO, and RoHS certifications, ensuring environmental and operational safety.
Why Leading Plants Choose SENOTAY LS Screw Conveyor
Factory-Direct Pricing. Certified Quality. Dedicated Support.
Best Price Guarantee
Certified & Compliant
Fast, Reliable Delivery
Types of LS Screw Conveyors: Models & Specifications
Model | Screw Diameter (mm) | Pitch (mm) | Speed (r/min) | Capacity (m³/h) | Length (m) | Motor Power (kW) |
LS100 | 100 | 100 | 140 | 2.2 | 4–10 | 0.55–1.1 |
LS160 | 160 | 160 | 112 | 9.7 | 6–15 | 1.5–3 |
LS200 | 200 | 200 | 100 | 16.9 | 6–20 | 2.2–4 |
LS250 | 250 | 250 | 90 | 29.7 | 8–25 | 3–5.5 |
LS315 | 315 | 315 | 80 | 52.9 | 10–30 | 4–7.5 |
LS400 | 400 | 355 | 71 | 85.3 | 15–40 | 5.5–11 |
LS500 | 500 | 400 | 63 | 133.2 | 20–50 | 7.5–15 |
LS630 | 630 | 450 | 50 | 188.9 | 25–60 | 11–22 |
LS800 | 800 | 500 | 40 | 270.7 | 30–70 | 15–30 |
LS1000 | 1000 | 560 | 32 | 379.0 | 40–70 | 22–45 |
LS Screw Conveyor — Technical Specification Table
Physical Dimensions | Performance Ratings | Material & Construction | Operational Data | Certifications & Lifecycle |
Conveyor Length: 2,000–60,000 mm (modular sections) | Design Capacity: 12–420 m³/h (model-dependent) | Carbon Steel (Q235B) / SS304 / SS316L | 120–680 Nm | 30,000–50,000 hours (typical) |
Outer Diameter: 100–630 mm | Max Operating Pressure: ≤ 1.5 Bar | Q235B / SS304 | 50–120 rpm | CE Certified |
Trough Width: 160–720 mm | Max Operating Temperature: 80°C (standard) | Cast Steel | Ø14–Ø22 mm holes on 4–12-hole flanges | ISO 9001:2015 |
Overall Height: 300–1,150 mm | Maximum Temperature (High-Temp Option): 180°C | 45# Steel / SS304 | 95–2,300 kg (size-dependent) | JB/T 7679-95 |
Flange Size: Ø200–Ø900 mm | Material Bulk Density Range: 0.4–2.0 t/m³ | NBR / EPDM / PTFE | Reinforced eye-bolts (2–6 per unit) | 500–800 cycles/year |
(BCD): Ø170–Ø860 mm | Efficiency: 85–92% (conveying efficiency) | Bolt-on dustproof steel cover | 0°–45° | IP55 (motor/drive) |
Inlet Size: 150–600 mm | Flow Rate Range: 60–85% of max capacity | Standard ≥ 3.2 µm Ra | ≤ 75 dB(A) | EN 619 & CE Machinery Directive |
Product Description
Property | Specification |
Product Name | LS Screw Conveyor |
Design Standard | JB/T 7679-95 |
Certification | ISO 9001:2015, CE |
Conveying Capacity | 2.2 m³/h ~ 500+ m³/h |
Temperature Range | Material ≤ 200°C, Ambient –20°C to +50°C |
Material Options | Q235 Carbon Steel, 45# Steel, Stainless Steel (Optional) |
Surface Treatment | Anti-corrosion paint / powder coating / wear-resistant lining |
Drive Motor Power | 0.55 kW – 55 kW (depending on model size) |
Reducer Type | XWD Cycloidal Pinwheel Reducer (Efficiency > 90%) |
Material Properties & Standard Physical / Mechanical Properties
Component | Material Composition | Mechanical Property | Feature |
Screw Shaft | Q235 / 45# Carbon Steel | High torsional strength | Supports heavy loads; long lifespan |
Flight Blades | Helicoidal flighting | Wear-resistant | Optional hardened edges for abrasive material |
Casing / Trough | 4–6 mm Carbon Steel Plate | High rigidity | Dust-tight, vibration-resistant |
Bearings | Self-lubricating alloy | Low friction coefficient | Extended service life |
Seals | Triple-lip / labyrinth design | IP65–IP67 | Prevents dust leakage and lubricant loss |
How Does an LS Screw Conveyor Work?
The working mechanism of the LS Screw Conveyor follows a simple yet highly effective principle:
Material Feeding: Bulk materials are introduced through a controlled inlet via gravity or a hopper.
Conveying Action: The rotating screw blades (20–120 RPM) move materials along the enclosed U-trough or tubular casing.
Friction and Weight: The weight and casing friction prevent bulk materials from rotating with the auger blades, ensuring continuous forward movement.
Discharge: Material exits through a designated outlet for further processing or packaging.
Dust Control: The enclosed design ensures zero spillage and dust emission, maintaining workplace cleanliness.
Features
Low noise operation (≤78 dB).
Modular structure for easy maintenance and installation.
Excellent sealing—ideal for cement conveyor applications.
High-efficiency drive system (up to 98%).
Anti-clog design for smooth flow.
Customizable inlets/outlets to fit existing systems.
Core Components
Screw Shaft & Flighting: Helicoidal flight with a 1:1 pitch ratio for optimal material flow.
U-Trough & Casing: 4–6 mm thick carbon steel casing with a labyrinth cover seal.
Drive Unit & Reducer: XWD-type cycloidal reducer with ≥90% efficiency.
Intermediate Bearings: Self-lubricating design for minimal wear and downtime.
Sealing System: High-precision triple-lip seals and gasketed joints for dust protection.
Flexible Ports: Flanged inlet/outlet for various operating configurations.
Technical Advantages in Manufacturing by Senotay
At Senotay (Hebei OuTai Environmental Protection Equipment Co., Ltd.), every LS Screw Conveyor undergoes:
Strict Quality Control – ISO 9001:2015-certified processes.
Precision Fabrication – CNC machining and robotic welding for perfect alignment.
Surface Protection – Anti-rust, anti-abrasion coatings for long-term use.
Testing & Compliance – CE, ATEX, and RoHS certified for global market acceptance.
Customization Options – Explosion-proof, high-temperature-resistant, and stainless-steel variants.
Explore More Conveying Equipment with SENOTAY
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FAQs
Q1. What materials can an conveyor handle?
answers:It handles cement, sand, ash, grain, coal powder, chemical fertilizers, and other dry to semi-dry bulk materials.
Q2. What is the temperature limit of the conveyor?
answers:Material temperature ≤ 200°C; suitable for ambient conditions between –20°C to +50°C.
Q3. How often should maintenance be performed?
answers:Weekly inspections and monthly lubrication ensure optimal performance and minimize downtime.
Q4. Can it be customized for corrosive materials?
answers:Yes, stainless steel or coated versions are available for high-corrosion environments.
Q5. What certification does Senotay hold?
answers:The product meets CE, ISO 9001:2015, and ATEX standards for quality and safety compliance.
