High-Purity Alumina Ceramic Roller Solution for Industrial Furnaces
Core Value: High-performance ceramic roller tube engineered for continuous operation up to 1200°C in demanding industrial furnace and kiln applications. 60mm outer diameter with precision 50mm inner diameter provides optimal strength-to-weight ratio for roller hearth systems. 96% alumina composition ensures exceptional chemical resistance, low thermal expansion, and superior wear resistance for extended service life exceeding 20,000 hours. BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE and UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS.
- ✓ 1200°C Resistance: Continuous high-temperature operation
- ✓ 60mm OD/50mm ID: Optimal diameter ratio
- ✓ 96% Alumina: High purity ceramic composition
- ✓ Low Thermal Expansion: 7.5 x10⁻⁶/°C prevents cracking
- ✓ Chemical Resistance: Inert to most furnace atmospheres
- ✓ Superior Wear: Hardness > Mohs 9
- ✓ Reliable Quality: 30+ YEARS MANUFACTURING EXPERIENCE
- ✓ Quality Assured: UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS
- ✓ Global Standards: CE, LVD, RoHS, ISO 9001 certified
Technical Specifications & Performance Data
| Parameter | Standard Value | Customizable Range | Notes |
|---|---|---|---|
| Outer Diameter | 60mm (standard) | 30mm – 100mm | Precision ground |
| Inner Diameter | 50mm (standard) | Custom IDs available | 5mm wall thickness |
| Max Temperature | 1200°C continuous | 1300°C peak | Alumina grade dependent |
| Material Composition | 96% Al₂O₃ | 95% – 99.5% options | High purity alumina |
| Density | 3.7 g/cm³ | >3.6 g/cm³ minimum | High density for strength |
| Flexural Strength | >350 MPa | At room temperature | Superior mechanical strength |
| Thermal Expansion | 7.5 x10⁻⁶/°C | 20-1000°C range | Low expansion prevents cracking |
| Thermal Shock | ΔT 200°C | Quench resistance | Rapid temperature changes |
| Surface Finish | Ra 0.8 μm | Ground or polished | Low friction surface |
| Standard Length | 1000mm | 500mm – 3000mm | Cut to size available |
| Roundness | ±0.1mm | Precision grinding | Ensures smooth rotation |
| Warranty | 1 Year Standard | Quality assured | COMPREHENSIVE QUALITY ASSURANCE |
Industrial Applications & Solutions
- Roller Hearth Furnaces: Steel annealing, normalizing lines. 60mm OD optimal for medium load capacity. Low friction reduces drive power. BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE in continuous furnaces.
- Glass Tempering Lines: Flat glass, automotive glass. Thermal shock resistance handles rapid heating/cooling. Smooth surface prevents glass scratching. UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS for optical quality.
- Ceramic Kiln Rollers: Tile, sanitaryware production. Chemical resistance to glaze vapors. High hardness prevents wear from abrasive bodies. Dimensional stability ±0.1mm.
- Heat Treatment Furnaces: Aluminum, steel processing. 1200°C rating handles all common heat treat processes. Long life reduces maintenance shutdowns. Temperature uniformity improved.
- Electronics Manufacturing: LTCC, HTCC firing. High purity prevents contamination. Cleanroom compatible. Stable dimensions for automated handling.
- Carbon Fiber Processing: Oxidation ovens, carbonization furnaces. Inert to process gases. Stable at temperature prevents web breaks. High reliability for continuous production.
HT-Heater vs Standard Market Ceramic Rollers
| Feature | HT-Heater | Standard Market | Your Advantage |
|---|---|---|---|
| Alumina Purity | 96% standard | 92-95% | Better high temperature performance |
| Density | 3.7 g/cm³ | 3.4-3.5 g/cm³ | 5-10% stronger, better wear |
| Surface Finish | Ra 0.8 μm ground | Ra 1.6-3.2 μm as-fired | 50% smoother, less friction |
| Dimensional Tolerance | ±0.1mm | ±0.3-0.5mm | 3x more precise |
| Thermal Shock | ΔT 200°C | ΔT 100-150°C | 30-100% better quench resistance |
| Service Life | 20,000+ hours | 10,000-15,000 hours | 30-100% longer life |
| Manufacturing Experience | 30+ YEARS EXPERIENCE | Less than 10 years | Proven ceramic processing technology |
| Quality Assurance | UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS | Visual inspection only | ZERO DEFECT DELIVERY |
Installation & Integration Guidelines
- Roller Spacing: Center distance 1.5-2x tube length; Minimum 100mm between rollers; Alignment tolerance ±0.5mm; Thermal expansion allowance; Support at every 1.5m for long tubes
- Bearing Requirements: High temperature bearings mandatory; Graphite or ceramic bearings recommended; Lubrication-free operation preferred; Thermal expansion compensation; Load capacity 50kg per roller max
- Alignment: Precision alignment critical; Laser alignment recommended; End tolerance ±0.2mm; Level tolerance 0.1mm/m; Flexible couplings for drive system
- Temperature Gradients: Avoid direct flame impingement; Preheat rollers gradually; Max heating rate 100°C/hour; Cool down rate < 150°C/hour; Even heating prevents bowing
- Drive System: Chain or belt drive; Synchronous drive preferred; Speed matching critical; Avoid slip-stick operation; Variable frequency drive for soft start
Customer Success Stories
Case 1: Architectural Glass Tempering (China)
Application: Large flat glass tempering furnace
Challenge: Standard ceramic rollers caused glass scratching and optical defects
Solution: 60mm OD alumina rollers, 200+ tubes in 3-section furnace
Results: GLASS REJECT RATE REDUCED BY 85%. Roller life increased to 30,000 hours. Surface finish maintained throughout life.
Client Quote: “HT-Heater UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS – surface finish is exceptional. No scratching even after 2 years operation.” – Quality Manager
Case 2: Steel Annealing Line (South Korea)
Application: Continuous bright annealing furnace
Challenge: Frequent roller breakage caused production stoppages
Solution: 60mm OD 96% alumina rollers with precision grinding
Results: ROLLER BREAKAGE ELIMINATED. Downtime reduced by 90%. 4 years continuous operation with zero failures.
Client Quote: “30+ YEARS MANUFACTURING EXPERIENCE shows in quality consistency. Thermal shock resistance is outstanding.” – Plant Engineer
Pricing & Procurement Options
Sample Orders: Available for evaluation at sample pricing. Contact sales for details. All samples UNDERGO MULTIPLE RIGOROUS QUALITY CHECKS.
Standard Production: MOQ 10 pieces. BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE ensures consistent quality. Volume discounts for 50+ units.
Custom Configurations: Custom diameters, lengths, purity grades available. Engineering consultation included. All custom rollers UNDERGO MULTIPLE RIGOROUS QUALITY CHECKS.
Lead Times: Standard: 7-10 days production. Custom: 10-14 days. Samples: 5-7 days. Rush service available for urgent projects.
Min. Order: 10 pcs | Lead Time: 7-10 Days | Custom MOQ: 1 pc
Global Logistics: Worldwide shipping via UPS, DHL, FedEx, EMS, TNT or shipping agent as your request. All deliveries backed by 30+ YEARS MANUFACTURING EXPERIENCE.
Global Certifications & Compliance
- CE Marking
Conforms to European directives
Health, safety, environmental protection - LVD Compliance
Low Voltage Directive
Electrical safety requirements - RoHS Compliant
Restriction of Hazardous Substances
Environmentally safe materials - ISO 9001
Quality Management System
Rigorous quality control processes
Quality Documentation: Certificate of Conformity, material certificates, and test reports available. Every unit UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS before shipment.
Comprehensive After-Sales Support
Warranty: 1 Year Standard Warranty against manufacturing defects. COMPREHENSIVE QUALITY ASSURANCE backed by 30+ YEARS MANUFACTURING EXPERIENCE.
Technical Support: Application engineering for roller system design. Bearing selection guidance. Alignment troubleshooting assistance. Thermal analysis support.
Service Network: BACKED BY 30+ YEARS MANUFACTURING EXPERIENCE. UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS ensures reliability. Global support for technical inquiries.
Quality Commitment: Material traceability documentation available. Replacement rollers and accessories in stock. Design consultation for optimal system performance.
Ready for Reliable High-Temperature Rollers?
Next Steps:
- 📧 Request Custom Quote – Based on your furnace specifications
- 📄 Download Technical Datasheet – Thermal properties & dimensions
- 🔧 Schedule Engineering Consultation – Optimize roller system design
- 📦 Order Evaluation Samples – Test thermal shock resistance
- 📞 Contact Sales Team – Quick response within 2 hours
HT-Heater.com – Industrial High Temperature Solutions
30+ YEARS MANUFACTURING EXPERIENCE | UNDERGOES MULTIPLE RIGOROUS QUALITY CHECKS | CE LVD RoHS ISO 9001
Ceramic Rollers | Alumina Tubes | Custom Solutions | Global Support
