The SENOTAY WLS Shaftless Screw Conveyor
Revolutionize your material handling with the SENOTAY WLS Series—the ultimate solution for non-clogging, high-capacity transport from Hebei OuTai Environmental Protection Equipment Co., Ltd. (SENOTAY). Engineered for challenging, sticky, or fibrous materials, the WLS Series removes the central shaft entirely. This innovative design eliminates internal buildup and hanger bearing failures, ensuring a continuous, reliable flow of sludge, waste, and wet bulk materials.
Why Leading Factories Choose SENOTAY:
Factory-Direct Pricing. Certified Quality. Dedicated Support.
Best Price Guarantee
Certified & Compliant
Fast, Free Shipping
Comprehensive After-Sales Support
Lifetime Technical Support: Expert guidance for the life of your equipment.
Spare Parts in Stock: Immediate availability of replacement liners and heavy-duty spirals.
Remote Troubleshooting: Fast diagnostics to keep your production lines moving.
Trusted by factories worldwide. Ready for yours.
Why Choose the Shaftless Screw Conveyor?
Senotay’s Shaftless Screw Conveyor represents an evolution in horizontal conveying technology.
It combines precision engineering, durable materials, and certified safety standards to deliver superior performance under the toughest industrial conditions.
Key Benefits:
No central shaft that means eliminates clogging and wrapping of fibrous materials.
Handles high-viscosity materials seamlessly such as sticky sludge and cellulose waste.
Heavy-duty capacity is up to 500+ m³/h and conveying lengths of 60 meters per unit.
Low maintenance cost that fewer bearings, less downtime.
Certified quality is built under ISO 9001:2015, CE, and ATEX standards.
Shaftless Screw Conveyor -Technical Specification Table
Physical Dimensions | Performance Ratings | Material & Construction | Operational Data | Certifications & Lifecycle |
Length: 2,000–40,000 mm | Operating Pressure: 0.3–1.0 Bar | SS304 / SS316 / Mn Steel | 180–450 Nm | 18,000–25,000 hrs |
Trough Width: 260–1,200 mm | Max Pressure: 1.5 Bar | Carbon Steel / SS304 | 45–120 kg/m | 8–15 months |
Trough Height: 300–1,500 mm | Operating Temp: 0–60 °C | UHMW-PE / Hardox | 8–16 holes, Ø18–24 mm | Up to 1,000 cycles/year |
Flange Size: Ø200–Ø800 mm | Max Temp: 120 °C | SS304 / CS with coating | 2–6 reinforced points | ISO 9001 / CE / GB/T 10595 |
BCD: Ø160–Ø750 mm | Capacity: 3–90 m³/h | 20–35 mm | 1.5–22 kW | ANSI / ASME B20.1 |
Inlet Opening: 200–700 mm | Conveying Efficiency: 85–92 % | NBR / EPDM | 20–60 rpm | Heavy-Duty Industrial |
Outlet Opening: 250–750 mm | Max Incline Angle: 0–35° | 4–10 mm | ≤ 2.5 mm/s | 10–15 years
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Detailed Table: Types of Shaftless Screw Conveyors
Type No. | Spiral Diameter (mm) | Capacity (m³/h) | Max Length (m) | Spiral Thickness (mm) | Motor Power (kW) | Application Material |
SC-100 | 100 | 1–5 | 6 | 10 | 0.75–1.5 | Food waste, light solids |
SC-160 | 160 | 3–15 | 10 | 12 | 1.5–3 | Sludge, screenings |
SC-200 | 200 | 8–20 | 12 | 12–14 | 2.2–4 | Biomass, organic waste |
SC-250 | 250 | 12–35 | 20 | 14 | 3–5.5 | Paper pulp, chemical slurry |
SC-300 | 300 | 18–45 | 25 | 16 | 4–7.5 | Sand, grit, aggregates |
SC-350 | 350 | 25–60 | 28 | 18 | 5.5–11 | Industrial sludge, ash |
SC-400 | 400 | 30–75 | 30 | 20 | 7.5–15 | Cement, high-density solids |
SC-500 | 500 | 40–90 | 32 | 22 | 11–18.5 | Mining tailings, minerals |
SC-600 | 600 | 55–110 | 35 | 25 | 15–22 | Heavy sludge, biomass |
SC-700 | 700 | 70–150 | 40 | 25–30 | 18.5–30 | Municipal waste, bulk solids
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Product Description & Material Properties
Our Shaftless Screw Conveyors are designed for industrial-grade, continuous operation and are available in several models ranging from SSC150 to SSC600. Each system is custom-built to meet specific project requirements.
Parameter | Description |
Capacity Range | 5 m³/h to 150+ m³/h |
Length per Unit | Up to 25 meters |
Trough Fill Rate | 40–45% efficiency |
Torque Capacity | Up to 4000 Nm |
Operating Temperature | Up to 200°C |
Certifications | ISO 9001:2015, CE, JB/T 12636-2016 |
Material Composition
Spiral: Here we use Q345B high-tensile steel or 304/316 stainless steel (thickness: 6–16 mm).
Trough: 5–8 mm carbon or stainless steel with 12–25 mm UHMW-PE wear liner.
Drive: 1.1–45 kW motor with XWD/ZJ-type high-torque gear reducer for smooth startup and stable performance.
Core Components Overview
Component | Material | Function | Lifespan | Maintenance Schedule |
Shaftless Helical Spiral | Q345B or SS304/316 | Transports materials with high torque | 4–8 years | Inspect every 500 hours |
U-Trough | Carbon or Stainless Steel | Housing structure | 15+ years | Annual corrosion check |
Wear Liner | UHMW-PE | Reduces friction and wear | 3–6 years | Quarterly inspection |
Drive Unit | Motor (1.1–45 kW) | Provides rotation torque | 6–10+ years | Oil change every 2,500 hrs |
Seals & Bearings | High-quality alloy | Prevents leakage | 2–4 years | Re-lubricate every 3–6 months |
Uses of a SSC
Shaftless screw conveyors are widely used across multiple industries, including:
Wastewater treatment plants (in sludge and screenings).
Food and beverage processing (In pulp, by-products organic waste).
Mining and minerals (FOR coal slurries, fine ash).
Pulp & paper mills (FOR fibrous residues).
Municipal waste handling (FOR solid waste and recyclables).
Agricultural sectors (For grain, compost, feed materials).
Key Features of our conveyor
High capacity material handling: The capacity is Up to 150 m³/h throughput.
Compact and modular design: It has a Flexible layout for plant integration.
Low maintenance: the maintainance is Long-lasting UHMW liners and smooth operation.
Corrosion and wear resistance: The conveyor is Suitable for aggressive materials.
Fully sealed structure: It also Prevents leakage and odor emission.
Continuous, low-noise performance: It is Ideal for enclosed installations.
Technical Advantages in Manufacturing – Senotay Quality
As a leading shaftless screw conveyor manufacturer, Hebei OuTai Environmental Protection Equipment Co., Ltd. (Senotay) guarantees precision engineering and enhanced durability through:
Advanced CAD & CNC fabrication technology.
High-torque gear drive assemblies (up to 4000 Nm).
ISO 9001:2015 certified production system ensuring consistent quality.
Custom engineering for every industry application.
Strict QC and testing standards per Chinese manufacturing benchmark JB/T 12636-2016.
Expert after-sales service and technical support worldwide.
Frequently Asked Questions (FAQs)
1. What materials can a shaftless screw conveyor handle?
Answers:Sticky, viscous or fibrous materials such as sludge, food waste, biomass and recyclables.
2. What is the maximum length of a single conveyor?
Answers:Up to 25 meters in one section, and longer lengths possible through series connection.
3. Is the system customizable?
Answers:Yes, Senotay manufactures conveyors to match specific capacities, materials, and plant layouts.
4. What are the typical maintenance requirements?
Answers:Inspect spirals and liners regularly; lubricate bearings every 3–6 months; replace worn parts as per lifetime schedule.
5. What certifications do Senotay conveyors comply with?
Answers:All systems are ISO 9001:2015 and CE certified also complying with JB/T 12636-2016 standards.
