Open-Trough Material Handling System for Powders, Granules & Semi-Moist Solids
The ST-U Series U-Type Screw Conveyor (U-Trough Conveyor) is an open-trough mechanical transport system designed for moving bulk powders, granules, and semi-moist materials. Featuring a U-shaped trough equipped with a bolt-on removable cover, it provides direct, full-length top access for easy inspection, routine cleaning, and quick clog clearing. Manufactured with durable carbon steel, stainless steel, or wear-resistant alloy flighting, it handles throughputs from 5 to 500+ m³/h across horizontal and inclined paths up to 30°.
Core System Advantages
High-Volume Throughput: Wide U-trough configurations (widths from 150 to 1,250 mm) support high-capacity bulk material transfer up to 500+ m³/h.
Abrasion & Thermal Resistance: Flights constructed from Hardox 400 or Manganese steel (16Mn) resist heavy wear and handle process temperatures up to 200°C.
Key Technical Specifications
Conveying Capacity & Incline: Throughput volumes from 5 to 500+ m³/h across horizontal and inclined angles up to 30°.
Trough Dimensions & Materials: Trough widths from 150 to 1,250 mm, screw diameters up to 1,250 mm, and Q235B, SS304/SS316L, or Hardox construction.
Operating Limits & Drive: Manages material temperatures up to 200°C with motor power options up to 185+ kW and IP65 dustproof/moisture-resistant sealing.
Purpose of choosing U-Type Screw Conveyor
Choosing a U-type screw conveyor ensures durability including dust-proof operation and simplicity in maintenance. Its U-shaped trough allows for easy inspection then quick cleaning and superior material flow control.
Here’s why industries rely on it:
Versatility: The whole system is Ideal for granules, powders, semi-moist or sticky materials.
Space efficiency: Here the empty space is Optimized for compact layouts.
Ease of maintenance: Hare the Removable covers provide quick access.
High performance: It able to handle materials up to 200°C and capacities from 5–500 m³/h.
Reliability: Proven through Senotay’s ISO 9001:2015 quality system.
Why Leading Plants Choose SENOTAY U-Type Screw Conveyor
Factory-Direct Pricing. Certified Quality. Dedicated Support.
Best Price Guarantee
Certified & Compliant
Fast, Reliable Delivery
U-Type Screw Conveyor Model Comparison Table
Model | Capacity (m³/h) | Screw Diameter (mm) | Power (kW) | Max Lift Height (m) | Weight (kg/m) | Noise Level |
ST-U-SC-V200 | 10–25 | 200 | 4–7.5 | 15 | 85 | ≤70 dB(A) |
ST-U-SC-V300 | 25–60 | 300 | 7.5–18.5 | 20 | 150 | ≤72 dB(A) |
ST-U-SC-V400 | 60–120 | 400 | 18.5–45 | 25 | 250 | ≤75 dB(A) |
ST-U-SC-V500 | 120–250 | 500 | 45–75 | 30 | 400 | ≤78 dB(A) |
ST-U-SC-V600 | 200–350 | 600 | 55–90 | 35 | 480 | ≤80 dB(A) |
ST-U-SC-V700 | 300–450 | 700 | 75–110 | 40 | 600 | ≤82 dB(A) |
ST-U-SC-V800 | 400–600 | 800 | 90–132 | 45 | 750 | ≤82 dB(A) |
ST-U-SC-V900 | 550–700 | 900 | 110–160 | 50 | 890 | ≤83 dB(A) |
ST-U-SC-V1000 | 600–800 | 1000 | 132–185 | 55 | 1000 | ≤85 dB(A) |
ST-U-SC-V1250 | 800–1000 | 1250 | 160–220 | 70 | 1250 | ≤86 dB(A) |
U-Type Screw Conveyor — Technical Specification Table
Physical Dimensions | Performance Ratings | Material & Construction | Operational Data | Certifications & Lifecycle |
Conveyor Length: 1–40 m | Flow Rate: 2–120 m³/h | Q235 / SS304 / SS316L | 1.1–30 kW | ISO 9001:2015, CE |
Trough Width: 300–1,000 mm | Max Pressure: ≤ 0.12 MPa | Carbon Steel / SS304 | 20–90 rpm | 12–24 months |
Trough Height: 200–700 mm | Operating Temp: –10°C to 180°C | Bolted / Hinged | 350–4,800 kg | 25,000–45,000 hours |
Inlet Size: 250–600 mm | Max Temp (Peak): 200°C | Rubber / PTFE / Labyrinth | 80–200 Nm | 6–12 months |
Outlet Size: 200–500 mm | Conveying Efficiency: ≥ 95% | Hanging / End Bearing | 8–16 holes, Ø12–Ø20 mm | GB16297-1996 |
Flange Size: DN200–DN600 | Max Incline Angle: 0–30° | 8.8 / SS304 | ≤ 1.8 mm/s | ≥ 100,000 cycles |
Bolt Circle Diameter (BCD): 240–620 mm | Noise Level: ≤ 75 dB(A) | Painted / Powder-Coated / Polished SS | –15°C to 45°C | Continuous 24/7 |
Section Length (Modular): 1,000–2,500 mm | Power Efficiency: ≥ 88% | 3–8 mm | 2–6 welding lugs | IP55 / IP65
|
Standard Physical & Mechanical Properties
Parameters | Specification Range | Material Options | Capacity | Power | Temperature |
Trough Width | 150–1250 mm | Q235B / SS304 | 5–500 m³/h | 1.5–75 kW | ≤200°C |
Screw Diameter | 200–500 mm | Hardox / 16Mn | 10–250 m³/h | 4–75 kW | ≤200°C |
Shaft Material | 40Cr Alloy | - | - | - | - |
Product Description & Material Properties
Senotay’s Industrial U-Type Screw Conveyor is engineered with precision to meet demanding handling needs.
Material Properties & Construction:
Trough Material: It contain Carbon steel Q235B category or stainless steel.
Screw Flight Material: For screw we use Hardox 400 or Manganese steel ( which is 16Mn) for abrasion resistance.
Shaft Material: For shaft we use alloy steel for better strength and fatigue resistance.
Operating Temperature: -20°C to +80°C (custom designs up to 200°C).
Noise Level: ≤70–78 dB(A) ensuring quiet operation.
Protection Class: IP65 for dustproof and moisture resistance.
A ideal Conveyor Working mechanism
The U-type screw conveyor working principle is simple yet effective. Material enters the inlet and is moved forward by the rotating helical screw. The rotational force combined with material friction pushes the bulk steadily toward the discharge outlet.
Feeding: In feeding process The huge quantity of Bulk material enters through the inlet.
Transporting: For transpering things The screw shaft rotates and moving material forward.
Discharging: Her in discharging process Material exits smoothly through the outlet and ready for the next process.
Optional Incline: It Can move materials slightly uphill based on installation angle.
This mechanism ensures continuous, clog-free and dust-controlled material transfer.
Key Features of Senotay’s
U-Shaped Trough: 3–8mm thick, carbon steel or stainless steel design.
Flanged Connections: Precision sealing to minimize leakage.
Removable Covers: Simplified cleaning and inspection.
Custom Inlet/Outlet Options: For flexible plant integration.
Optimized Flight Design: Full, reduced, or variable pitch for efficiency.
Low Maintenance: Durable bearings minimize downtime.
Quiet Operation: Multi-point isolation reduces vibration and noise.
Core Components
U-Shaped Trough System – Dust-sealed and corrosion-resistant.
Screw Assembly & Flighting – Heavy-duty helix built for efficiency.
Bearings (M1/M2) – Optional rolling or sliding bearings for temperature-specific use.
Drive Motor & Gear Reducer – Optimized power-to-torque ratio ensures mechanical reliability.
Inlet/Outlet Ports – Designed for smooth and precise material flow.
Technical Advantages of Senotay Manufacturing
At Hebei OuTai Environmental Protection Equipment Co., Ltd. (Senotay), every U-type screw conveyor is produced under strict ISO and CE standards with precision fabrication.
Advantages Include:
CNC machining for accuracy.
Heat treatment for longer shaft life.
Wear-resistant coating on screw flights.
Custom capacity design (5–500 m³/h).
Pre-assembly testing ensures performance consistency.
Explore More Conveying Equipment with SENOTAY
▪ Screw Conveyor
▪ GLS Tubular Screw Conveyor | LS Screw Conveyor | TD Bucket Elevator | WLS Shaftless Screw Conveyor
| Tubular Screw Conveyor | U-type Screw Conveyor | Shaftless Screw Conveyor
▪ Chain Conveyor
▪ MS Chain Conveyor | FU Chain Conveyor
▪ Bucket Elevator
▪ NE Bucket Elevator | TH Bucket Elevator
▪ Dust Humidifying Mixer
▪ SJ Humidifying Mixer | BDSZ Humidifying Mixer
▪ Rotary Feeder
▪ YJD-A-Square Rotary Feeder | YJD-B rotary feeder | YJD-HG-Square rotary feeder | YCD-HG-Square unloader
FAQs – U-Type Screw Conveyor
Q1. What materials can be conveyed using a conveyor?
Answers: Powders, grains, cement, sludge, and semi-liquid materials.
Q2. What are the temperature limits?
Answers: Standard design handles up to 200°C; custom options are available for higher ranges.
Q3. Can U-type screw conveyors be used for inclined applications?
Answers: Yes, for moderate inclines (up to 20°) with proper design.
Q4. What certifications does Senotay hold?
Answers: Certified by ISO 9001:2015 and CE for global reliability and safety standards.
Q5. Can the conveyor be customized?
Answers: Yes, Senotay offers design customization for size, material, and configuration.
