Product: Custom 99% Alumina Ceramic Carrier Disc / Precision Flanged Spool Roller
Material: 99% High-Purity Technical Alumina Ceramics (Al2O3 >= 99%)
Manufacturer: Hunan Yuanhong New Materials Co., Ltd. (yhxceramic), Loudi, Hunan, China
Established: 2016 | Factory Footprint: 8,000 sqm | Production Lines: 15 | Employees: 82
Product Overview
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Key Machining Capabilities & Precision Specifications:
- Hole Diameter Accuracy: Up to 0.003 mm (Tolerance)
- Coaxiality & Parallelism: Up to 0.002 mm
- Cylindricity: Up to 0.003 mm
- Hole Depth Precision: Up to 0.005 mm
- Minimum Slot Width: Down to 0.2 mm
- Surface Roughness: Down to Ra 0.02 um (Mirror Ground)
- Internal Threading: Down to M1.6 Precision
- Operating Temperature: Up to 1600 deg C
- Dimensions: 100% Custom Machined to Customer CAD / Technical Drawings
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Key Selling Points:
Selling Point 1 — High-Purity 99% Alumina (Al₂O₃ ≥ 99%) for Extreme Environments
Manufactured from ultra-pure 99% Al₂O₃ fine-grain technical ceramic powder. Delivers superior mechanical strength, extreme dielectric
insulation, excellent chemical corrosion resistance, and sustained thermal stability up to 1600°C without deformation or outgassing.
Selling Point 2 — Ultra-Precision Machining with Tolerances Down to 0.002mm
Equipped with advanced 5-axis CNC ceramic engraving machines and diamond precision grinders. Capable of achieving coaxiality and
parallelism up to 0.002mm, hole diameter tolerances up to 0.003mm, and mirror-grade surface smoothness down to Ra 0.02μm.
Selling Point 3 — Intricate Geometry & Micro-Feature Machining (Min Slot 0.2mm)
Specialized in complex stepped profiles, dual-end circular flanges, and micro-groove arrays. Precision tooling achieves narrow slot widths
down to 0.2mm, hole depth precision up to 0.005mm, and internal threading up to M1.6 with crisp, burr-free edges.
Selling Point 4 — Seamless 6-Step OEM/ODM Workflow: From Drawings to Mass Production
Transparent, structured 6-step custom production: (1) Drawing/Sample Review → (2) Engineering Tech Evaluation → (3) Accurate Quotation
→ (4) Contract & NDA Signed → (5) Precision CNC Machining → (6) 100% CMM QA Inspection & Global Express Dispatch.
Selling Point 5 — Multi-Material Engineering Support (Al₂O₃, ZrO₂, SiC, Si₃N₄)
Comprehensive advanced ceramics matrix under one roof. In addition to 99% and 95% Alumina, we provide precision machining for 3Y-TZP
Zirconia, Magnesia-Stabilized Zirconia (Mg-PSZ), Silicon Carbide (SSiC/RBSiC), Silicon Nitride (Si₃N₄), and Tungsten Carbide.
Key Machining Capabilities & Precision Specifications:
- Hole Diameter Accuracy: Up to 0.003 mm (Tolerance)
- Coaxiality & Parallelism: Up to 0.002 mm
- Cylindricity: Up to 0.003 mm
- Hole Depth Precision: Up to 0.005 mm
- Minimum Slot Width: Down to 0.2 mm
- Surface Roughness: Down to Ra 0.02 um (Mirror Ground)
- Internal Threading: Down to M1.6 Precision
- Operating Temperature: Up to 1600 deg C
- Dimensions: 100% Custom Machined to Customer CAD / Technical Drawings
Structural Characteristics:
- Dual-end circular flange plates with circumferential precision mounting holes
- Multiple annular cooling and wire-guiding slots across the cylindrical body
- Precision concentric stepped through-bore for shaft mounting
- Smooth transitions with micro-chamfers to prevent chipping and stress concentration
Available Advanced Ceramics Matrix:
- Alumina Ceramics: 95% Al2O3, 99% Al2O3, 99.7% Al2O3
- Zirconia Ceramics: 3Y-TZP (White), 8Y-FSZ, Black Zirconia
- Magnesia-Stabilized Zirconia: Mg-PSZ (Yellowish, high impact resistance)
- Silicon Carbide: SSiC (Sintered SiC), RBSiC (Reaction-Bonded SiC)
- Silicon Nitride: Si3N4 (High thermal shock resistance)
- Tungsten Carbide (WC): Cemented carbide wear parts
Supported Drawing Formats:
- 2D: PDF, DWG, DXF with full dimensional tolerances
- 3D: STEP, STP, IGS, IGES, X_T, SAT models
Quality Certifications: ISO9001, CE, RoHS, REACH
Quality Inspection: 100% CMM (Coordinate Measuring Machine) and Optical Profile Inspection
Prototyping Lead Time: 3 to 7 business days
Mass Production Lead Time: 15 to 20 business days
Packaging: Custom pearl cotton (EPE) shockproof internal packaging + Export-standard wooden crate
Confidentiality: Strict bilateral Non-Disclosure Agreement (NDA) compliance
Application
Application Industries:
- Semiconductor Equipment: Wafer carrier discs, robotic transfer arms, vacuum chucks
- Precision Textile & Electronics: Ceramic spool rollers, winding guides, wire eyelets
- High-Voltage & Electrical Engineering: Insulating bushings, standoffs, coil bobbins
- Chemical & Thermal Processing: Corrosion-resistant fixtures, furnace load bearers
- Laser & Optical Systems: High-stability positioning stages and structural mounts
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Thermal Conductivity @ 20°C
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Thermal Expansion a at 20–400°C
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Properties
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Unit
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95%Al2O3
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99%Al2O3
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99.5%Al2O3
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Dielectric Constant
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1MHz
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9.4
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9.9
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9.9
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Dielectric Strength
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V/m
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15 x 10 6
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15 x 10 6
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15 x 10 6
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Dielectric Loss
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1MHz
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4 x 10 -4
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4 x 10 -4
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4 x 10 -4
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Volume Resistivity @ 25°C
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Ω・cm
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>10 14
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>10 14
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>10 14
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Volume Resistivity @ 500°C
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Ω・cm
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>10 8
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>10 8
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>10 10
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Various Types of Alumina Ceramic Part
We Can Do OEM and 0BM According to Your Drawing and Requirements.
Features of alumina ceramic
* Relatively low density;
* Extremely high operating temperature;
* Very high hardness and compressive strength;
* Excellent electrical insulation properties;
* Corrosion and wear resistance;
* Biologically inert, food compatibility.
Alumina Ceramic Properties
The following only lists the performance parameters of the three most common aluminum oxide ceramics. Normally, alumina ceramics
are composed of these types
Packing
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Hunan Yuanhong New Material Co.,Ltd was established in 2016 ,there are over 100 sets of ceramic professional equipments , several types of furnace in more than 8000 square meters production workshops. ISO9001 certified, a variety of advanced ceramic materials are ROHS and REACH certified. |
Q1: Can this ceramic holder replace wooden guide block directly?
A1: Yes, we can produce same size as your original wooden block, direct replacement without modifying machine.
Q2: Is it resistant to cooling liquid and acid lye?
A2: 99 alumina ceramic has excellent chemical stability, completely resistant to common drawing cooling fluid, acid and alkali liquid.
Q3: Do you accept small trial order?
A3: Yes, small batch sample order is welcome for customer test.
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