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Zirconia Ferrules are core precision components in fiber optic connectors, made primarily from high-purity zirconia (ZrO₂, purity ≥99.5%). They feature a central micro-hole for precise fixing and positioning of the optical fiber. As a critical channel for optical signal transmission, their precision directly determines the insertion loss and return loss of the fiber optic connection, making them an indispensable fundamental component in modern optical communication networks.
99% Zirconia Ferrule for Optical Communication System
Product Description
Ceramic Ferrules for optical fibers, thanks to the high hardness, low coefficient of thermal expansion, and sub-micron-level processing precision of 3Y-TZP zirconia ceramic material, have become a standard configuration for optical fiber connectors. By achieving precise alignment of the fiber end faces, they control insertion loss to within 0.2dB while ensuring stable performance over a wide temperature range of -40℃ to +85℃. Widely used in 5G communications, data centers, and industrial automation, they are among the most widely used industrial ceramic components globally.
Product Advantages
Core Material Properties
Zirconia (ZrO₂), known as "ceramic steel," is the industry-standard material for fiber optic ferrules, offering significant advantages over metals, engineering plastics, and other ceramic materials.
| Performance Indicators | Zirconia Ferrule | Metal Ferrule | Engineering Plastics |
| Vickers Hardness | ~1250 | ~850 | ~120 |
| Coefficient of Thermal Expansion (×10⁻⁶/K) | ~10.5 | ~16.5 | ~60 |
| Fracture Toughness (MPa·m¹/²) | ~9.5 | ~4.2 | ~1.8 |
Material Advantages
1.Ultra-high Hardness:effectively prevents end-face scratches, ensuring long-term insertion and removal reliability.
2.Thermal Stability:the coefficient of thermal expansion is close to that of glass optical fiber (approximately 10.5 × 10⁻⁶/K), maintaining precise core alignment within a temperature range of -40℃ to 85℃.
3.Excellent Polishability:the nanoscale grain structure enables mirror-level end-face polishing (Ra < 0.02μm), significantly reducing optical signal scattering loss.
4.Chemical Inertness:corrosion-resistant and aging-resistant, suitable for harsh environments.
Precision Manufacturing Process
Our zirconia ferrule using ceramic powder injection molding (CIM) technology, sub-micron precision is achieved through five core processes:
1.Nanopowder Injection Molding
yttrium-stabilized tetragonal zirconia nanopowder (D50≈0.3μm) was used.
mold precision ±1μm, producing blanks.
2.High-temperature Degreasing and Sintering
vacuum sintering at 1480℃, achieving a density of 6.05 g/cm³
shrinkage compensation design (1.192x size magnification)
3.Precision Grinding of Inner Hole
precision grinding of diamond grinding needle (Φ2.499mm)
hole diameter tolerance: Φ2.500±0.0005mm
4.End Face Polishing
UPC flat surface polishing: Ra<0.02μm, insertion loss≤0.2dB
APC 8° bevel polishing: angle tolerance±0.1°, return loss>65dB
5.Concentricity Calibration and Grading
Three-dimensional measuring instrument for fiber core eccentricity testing
Grade A: Eccentricity <0.3μm (better than the national standard GB/T 18310 requirement of ≤0.5μm)
Product Core Performance Parameters
1.Geometric accuracy indicators
| Parameter | Specification |
| OD | Φ2.499±0.0005mm |
| ID | Φ1.249±0.0005mm |
| Inner Diameter (single mold) | 125/125.5/126μm (+0.001mm) |
| Inner Diameter (multimode) | 127/128μm (+0.001mm) |
| Concentricity (single-mode) | ≤1.0μm（A级≤0.3μm） |
| Concentricity (multimodal) | ≤3.0μm |
| Length | 10.5mm±0.05mm |
2.Key values of optical performance
| Parameter | Standard Requirements | Industrial-grade Requirements |
| Insertion Loss | ≤0.3dB | ≤0.15dB |
| Return Loss (UPC) | >45dB | >55dB |
| Return Loss (APC) | >60dB | >68dB |
| Insertion and Removal Lifespan | 500次 |
≥3000次 |
Our workshop
|
CNC Workshop |
Testing Room |
|
Surface grinding Workshop |
Sintering Workshop |
|
Circular Grinding Workshop |
Injection molding Machine Workshop |
Why choose us?
1.Customized R&D, rather than standard product adaptation
2.Deep control of materials science：Material Selection Based on Needs，Microstructure Optimization，Batch Consistency
3.Precision machining capability：Flatness can reach 0.001mm, parallelism 0.002mm, and roughness Ra 0.1μm.
FAQ
Q1: What products does your company offer?
We specialize in high-performance ceramics such as alumina and silicon nitride, providing insulators, structural components, wear-resistant parts, and customized solutions.
Q2: Can you customize non-standard parts?
Yes. We support processing based on provided drawings and collaborative technical development, offering a full-process service from design to mass production.
Q3: What about accuracy and delivery time?
Standard tolerance ±0.05mm, precision grade ±0.01mm; samples 7-15 days, bulk orders 20-30 days.
Q4: Main application areas?
Power, electronics, machinery, chemical, and aerospace industries.
Q5: Quality assurance measures?
Full-process quality inspection, providing material reports and performance test data, supporting third-party certification and testing.
Q6: Do you provide technical support?
We provide professional support such as material selection consultation, design optimization, and failure analysis.
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