Alumina Fiber (Al₂O₃ Fiber) Manufacturing Plant Solutions
Turnkey Engineering • Advanced Process Technology • Global Delivery
By SL Chemtech
Alumina Fiber (Al₂O₃ Fiber) is widely recognized as one of the most advanced inorganic fibers available today. It offers an exceptional combination of low density, high tensile strength, high elastic modulus, excellent thermal resistance, superior oxidation and corrosion resistance, low thermal conductivity, and outstanding dielectric properties.
These characteristics make alumina fibers indispensable in aerospace, defense, energy, advanced composites, petrochemicals, automotive manufacturing, industrial insulation, and high-temperature filtration.
As global industries seek lighter, stronger, and more heat-resistant materials, SL Chemtech helps international investors and manufacturers build world-class alumina fiber production plants, delivering everything from engineering design to turnkey start-up.
Technical Features & Material Forms
Based on morphology, alumina fibers can be categorized into:
1. Long Fibers (Continuous Alumina Fibers)
2. Short Fibers
3. Alumina Fiber Whiskers
Exhibit high strength along with unique magnetic, electrical, and optical properties.
Suitable for functional applications in electronics, optics, and specialized composite materials.
Key Advantages of Alumina Fiber
Temperature Resistance: Maintains integrity above 1,300°C.
Corrosion Resistance: Performs in acidic, alkaline, and oxidative environments.
Low Thermal Conductivity: Ideal for thermal barrier coatings and insulation.
Electrical Insulation: Reliable performance in electrical and electronic applications.
Lightweight Strength: Combines low density with high modulus for aerospace-grade engineering.
Applications of Alumina Fiber
Alumina fiber is widely used in extreme-environment engineering:
Fiber-reinforced ceramic matrix composites (CMCs)
High-temperature wire conduits & cable insulation
Engine exhaust nozzles & sealing flaps
Thermal insulation tiles & refractory linings
Mobile device backplates for structural stability
Substrates for three-way catalytic converters
Power battery thermal barriers and protective casings
For more detailed technology information, message us at info@slchemetech.com.
None
SL Chemtech — Your Turnkey Partner for Alumina Fiber Manufacturing Plants
SL Chemtech provides complete EPCM and turnkey delivery for alumina fiber production lines.
We handle process, equipment, construction, commissioning, and training, ensuring your plant reaches stable, qualified production.
1. Process Engineering & Technology Design
We develop the full alumina fiber production process, including:
Sol-gel precursor preparation technology
Spinning/drawing process (for continuous fibers)
Controlled drying and pre-sintering systems
High-temperature sintering technology
Cutting, chopping, dispersing, and surface-treating (short fibers)
Production line layout & workflow design
Energy system, utilities, ventilation & environmental engineering
Quality control systems, testing standards, and laboratory design
Every design is tailored according to capacity, product grade, and customer specifications.
2. Complete Production Equipment Supply
SL Chemtech supplies all core and auxiliary equipment, including:
Sol-gel mixing and reaction systems
Spinning/drawing machines and towers
Drying furnaces, pre-sintering furnaces, and high-temperature kilns
Fiber winding and collecting systems (continuous fibers)
Precision cutting & dispersion units (short fibers)
Surface coating and treatment equipment
Automatic packaging and palletizing systems
Laboratory testing and performance evaluation equipment
We offer scalable capacity solutions from pilot-scale to large industrial production lines (200–2,000+ tons/year).
3. Installation, Commissioning & Trial Production
Our engineering team provides:
Mechanical, electrical, and utilities installation
Process integration and system calibration
Temperature, viscosity, and spinning/drawing parameter optimization
Test production, performance validation, and application testing
Assistance in achieving stable mass production
Safety and environmental compliance testing
We ensure the plant runs with consistent fiber quality and operational efficiency.
4. Training, Documentation & After-Sales Support
SL Chemtech offers full technical support:
Operator training and shift-by-shift skill development
Maintenance training and troubleshooting guidance
Standard operation procedures (SOP)
Quality inspection and laboratory training
Spare parts supply and ongoing technical upgrades
We support your team until full operational independence is achieved.
SL Chemtech supports turnkey construction for both short alumina fiber and continuous alumina fiber production lines. Typical performance indicators include:
Performance Indicators of Alumina Short Fibers vs. Continuous Fibers
| Product | Alumina short fiber | Alumina continuous fiber |
| Al2O3 content （%） | 72~95 | 72~99 |
| SiO2 content （%） | 5~28 | 0~28 |
| Melting point (℃) | > 1800 | > 1800 |
| Long-term service temp. (℃) | 1000~ 1600 | 1000~ 1600 |
| Density （g/cm3） | 3. 1~3.8 | 2.9~3.9 |
| Avg. diameter range (μm） | 3~7.5 adjustable | 7~ 14 adjustable |
| Monofilament tensile strength （MPa） | ≥1200 | ≥1700 |
| Monofilament elastic modulus （GPa） | ≥100 | 170~360 |
Why Choose SL Chemtech Alumina Fiber?
As a trusted alumina fiber manufacturer and supplier, SL Chemtech delivers:
Advanced Manufacturing Technology for consistent fiber quality.
Multiple Fiber Types to meet diverse industrial needs.
Custom Solutions for high-performance applications.
Global Supply Capability with reliable logistics support.
SL Chemtech’s mission is to help global clients build world-class alumina fiber manufacturing capabilities with high reliability and high cost-performance.
Start Building Your Alumina Fiber Plant with SL Chemtech
Whether you are planning to produce short alumina fiber, continuous alumina fiber, or both, SL Chemtech is ready to deliver a complete solution tailored to your production goals, application industry, and investment budget.
Contact SL Chemtech today to request:
Feasibility study and capacity planning
Customized process flow & equipment configuration
Factory layout and engineering planning
Detailed turnkey project proposal & quotation
Implementation timeline and ROI evaluation
