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China Screw Conveyor (Auger Feeder) Factory, Service
Product Description
Product Overview
The stainless steel screw conveyor (also called auger feeder) is a continuous conveying equipment that uses rotating spiral blades to push materials. The inclined stainless steel model shown features a fully enclosed structure, widely used in chemical, food, building materials, and environmental protection industries for conveying powdery and granular materials, supporting automatic feeding for reactors, mixers, and packaging machines.
Core Advantages
| Advantage | Description |
| Corrosion & Rust Resistance | Made of 304/316L stainless steel, resistant to acid and alkali corrosion, easy to clean and disinfect, meeting hygiene standards for food and pharmaceutical industries |
| Fully Enclosed Conveying | Sealed pipe design prevents dust leakage, reduces material loss and improves workshop working environment |
| Flexible Installation | Customizable inclination angle (0°-60°) and conveying length according to on-site requirements, adapting to different production line layouts |
| Low Noise & High Efficiency | Optimized spiral blade and transmission structure, low operating noise, stable conveying efficiency, 15% lower energy consumption than traditional conveying equipment |
| Convenient Maintenance | Modular design for easy disassembly and maintenance, simple replacement of wearing parts, reducing later operation and maintenance costs |
Core Technical Parameters
| Item | Specification |
| Standard Pipe Diameter | φ114mm / φ168mm / φ219mm / φ273mm / φ325mm |
| Conveying Length | 1m-30m (customizable) |
| Inclination Angle | 0° (horizontal) - 60° (customizable) |
| Matched Power | 1.1kW-15kW (matched according to pipe diameter, length and conveying capacity) |
| Conveying Capacity | 0.5t/h - 30t/h (adjustable according to material characteristics) |
| Optional Material | 304 Stainless Steel / 316L Stainless Steel / Carbon Steel with Lining |
| Feeding Method | Hopper Feeding / Flange Feeding |
| Discharging Method | Flange Discharging / Open Discharging |
| Control Mode | Local Control / Variable Frequency Speed Control / Linked Control |
Conveying Capacity Reference Table (304 Stainless Steel Model, Material Density ρ=1t/m³)
| Pipe Diameter (mm) | Inclination Angle | Max. Conveying Length (m) | Matched Power (kW) | Conveying Capacity (t/h) |
| φ114 | 30° | 10 | 1.5 | 0.5 - 1.2 |
| φ114 | 45° | 8 | 1.5 | 0.4 - 1.0 |
| φ168 | 30° | 15 | 3 | 1.5 - 3.5 |
| φ168 | 45° | 12 | 3 | 1.2 - 3.0 |
| φ219 | 30° | 20 | 5.5 | 4.0 - 8.0 |
| φ219 | 45° | 16 | 5.5 | 3.5 - 7.0 |
| φ273 | 30° | 25 | 7.5 | 8.0 - 15.0 |
| φ273 | 45° | 20 | 7.5 | 7.0 - 13.0 |
| φ325 | 30° | 30 | 11 | 15.0 - 30.0 |
| φ325 | 45° | 25 | 11 | 13.0 - 25.0 |
Industry Applications
| Industry | Applicable Materials | Application Advantages |
| Chemical Industry | Plastic granules, chemical powders, additives | Corrosion-resistant, no dust leakage, suitable for acid-base material conveying |
| Food & Grain Industry | Flour, grain, feed, food additives | Stainless steel material, meeting food-grade hygiene standards, easy to clean |
| Building Materials Industry | Cement, fly ash, gypsum powder | Fully enclosed conveying, reducing dust pollution and improving workshop environment |
| Environmental Protection Industry | Sludge granules, filter cakes, desulfurization powder | Anti-sticking design, no blockage during conveying, suitable for humid materials |
| Pharmaceutical Industry | Pharmaceutical powders, granular preparations | Hygiene-grade material, no cross-contamination, meeting GMP standards |
Structure & Working Principle
Structure Composition
Mainly composed of feeding hopper, conveying pipe, spiral blade, transmission device (motor + reducer), supporting bracket and discharge port. The modular structure design facilitates installation and disassembly.
Working Principle
The motor drives the spiral blade to rotate through the reducer. Under the push of the spiral blade, the material moves forward/upward along the closed conveying pipe. The conveying capacity can be adjusted by controlling the motor speed to realize continuous and stable material conveying.
Frequently Asked Questions (FAQ)
What is the difference between 304 and 316L stainless steel screw conveyors?
304 stainless steel is the standard choice suitable for most food, grain, and regular chemical applications. 316L contains molybdenum, providing superior resistance to chlorides, acids, and harsh chemicals, making it ideal for pharmaceutical processing and highly corrosive materials.
How does the inclination angle affect conveying capacity?
As the inclination angle increases, conveying capacity typically decreases due to gravity and material fallback. For instance, efficiency at a 45° angle is typically lower compared to horizontal conveying, requiring appropriate pipe sizing and motor power optimization.
Can this screw conveyor handle sticky or sludge-like materials?
Yes. For humid, sticky, or sludge materials, specialized configurations such as shaftless screw spirals and customized interior surface finishes are implemented to eliminate buildup and prevent clogging.
Is the conveying speed adjustable during operation?
Yes. When equipped with a Variable Frequency Drive (VFD / Inverter) or linked automated control systems, the rotational speed can be regulated precisely to adjust volumetric feeding rates.
How do I maintain the equipment for prolonged service life?
Regularly check gearbox lubrication, inspect end bearings and seals for wear, verify bolt tightness, and clear any residual material using clean-in-place techniques or modular quick-release access points.
