Custom Zirconia Ceramic Rotor Core High Toughness Precision CNC Valve Spool Mirror Polish Ra0.05 OEM
Key Selling Points
Selling Point 1 — Extreme Fracture Toughness (8–10 MPa·m½) & Anti-Chipping
Manufactured from ultra-fine 3Y-TZP yttria-stabilized zirconia. Leveraging unique stress-induced transformation toughening, it delivers a fracture
toughness of 8.0–10.0 MPa·m½—nearly 2–3 times higher than alumina. Completely prevents chipping, cracking, or edge spalling at sharp drive
slots under high-speed rotational torque.
Selling Point 2 — Ultra-High Flexural Strength (≥1000 MPa) & Compressive Rigidity
Boasts exceptional mechanical load-bearing capacity with flexural strength exceeding 1000–1200 MPa and material density of ≥6.0 g/cm³.
Withstands severe hydraulic pressure pulsations up to 1000 bar without deformation, outlasting metal alloys in high-pressure fluid valves and
metering pumps.
Selling Point 3 — Mirror-Polished Surface Finish (Ra ≤ 0.05μm) & Low Friction Torque
The external cylindrical sealing journals undergo precision centerless diamond grinding and optical micro-lapping, achieving mirror smoothness
down to Ra 0.05μm. Features an extremely low dynamic friction coefficient, minimizing starting torque and preventing seal ring wear.
Selling Point 4 — Intricate Stepped Taper Profile & Symmetric Drive Keyways
CNC-engineered with precision stepped-taper geometry, high-concentricity axial center bore, and dual symmetric drive keyway notches.
Guarantees zero backlash, precise angular indexing, and smooth fluid distribution across complex multi-port valve assemblies.
Selling Point 5 — Multi-Industry Applications: Pumps, Medical Valves & Chemical Metering
Proven durability across critical industries: high-pressure water pump plungers and rotor cores, medical bio-analysis sampling valves (bio-inert
with zero metal ion elution), corrosive chemical metering pumps, and intelligent sanitary mixing cartridges.
Selling Point 6 — Factory Direct Sourcing & 100% CMM Precision Inspection
Produced in Hunan Yuanhong's 8,000㎡ precision technical ceramics facility under ISO9001 quality systems. Every piece is 100% verified using
3D coordinate measuring machines (CMM) and laser micrometers. Rapid prototype samples delivered within 3–7 business days under bilateral
NDA protection.
Certified Material & Physical Properties:
- Theoretical Density: >= 6.0 g/cm3 (Dense, pore-free sintered structure)
- Fracture Toughness (K1c): 8.0 - 10.0 MPa.m^1/2 (Transformation-toughened, high impact resistance)
- Flexural Strength: >= 1000 - 1200 MPa (Superior mechanical load-bearing capacity)
- Compressive Strength: > 2500 MPa
- Rockwell Hardness: 89 - 90 HRA (Mohs Hardness 8.5 - 9)
- Vickers Hardness: 1250 - 1350 HV1
- Elastic Modulus: 210 GPa
- Surface Roughness: Down to Ra 0.05 um (Mirror lapped and polished)
- Dimensional Tolerance: Down to +/- 0.002 mm (Outer diameter, concentricity, runout)
- Thermal Expansion Coefficient: 10.5 x 10^-6 K^-1 (Close to steel, ideal for metal-ceramic press-fit)
- Maximum Operating Temperature: 500 - 600 deg C (Continuous mechanical service)
Geometric & Structural Characteristics:
- Stepped tapered cylindrical body engineered for multi-journal seal housing
- Concentric axial center through-bore for drive shaft or fluid channel connection
- Dual symmetric drive keyway notches at the base for high-torque anti-rotation transmission
- Chamfered micro-radii on all edges to eliminate stress concentration and avoid chipping
- Flawless ivory-white high-gloss mirror surface finish
Chemical & Environmental Resistance:
- 100% chemically inert to concentrated acids, alkalis, saline water, and organic solvents
- Completely immune to galvanic corrosion, pitting, cavitation, and biofouling
- Zero heavy metal ion leaching, meeting stringent medical, food, and semiconductor purity standards
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Quality Control & Assurance:
- Certifications: ISO9001, CE, RoHS, REACH
- Inspection Protocol: 100% CMM (Coordinate Measuring Machine) verification and optical surface profilometry
- Prototyping Lead Time: 3 to 7 business days
- Production Lead Time: 15 to 20 business days
- Packaging: Form-fitted high-density EPE foam tray + Export-standard corrugated cartons/wooden crates
- Confidentiality: Bilateral Non-Disclosure Agreement (NDA) supported for proprietary CAD designs
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Application
Primary Application Fields:
- High-Pressure Fluid Equipment: Ceramic plungers, rotor cores, pressure regulating valve spools
- Medical & Laboratory Analysis: Syringe micro-metering pump rotors, HPLC bio-inert sampling valves
- Industrial Process Valves: Multi-port rotary fluid distributor cores, chemical drain valve plates
- High-Wear Mechanical Components: Precision ceramic guide bushings, high-speed ceramic spindles
Basic Physical & Mechanical Properties
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Zirconia Ceramic Properties
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Item
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Unit
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Typical Values
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Physical Properties
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Color
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Customized
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Density
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g/cm3
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6.00
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Zirconia Content
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%
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94.4
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Gas Permeability
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0
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Water Absorption
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0
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Crystal Size
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um
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0.5
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Mechanical Properties
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Rockwell Hardness(45N)
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R45N
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78
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Modulus of Elasticity (20°C)
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Gpa
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>200
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Compressive Strength (20°C)
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Mpa
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2000
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Flexural Strength (20°C)
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Mpa
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800
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Thermal Properties
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Thermal Expansion Coefficient
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10-6/°C
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9.6
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Thermal Shock Resistance
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T°C
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250
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Thermal Conductivity (20°C-400°C)
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W/m.K
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2.5
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Our Technical Expertise: The Reason to Choose Us
Feature :Premium Material & Precision Manufacturing
1:High-Purity Zirconia Base Material:
We use high-purity zirconia (ZrO₂) powder, stabilized with additives like yttrium oxide (Y₂O₃)
to obtain a stable tetragonal crystal phase at room temperature.This phase transformation
toughening mechanism is the cornerstone of our product's high performance.
2:Advanced Forming Processes: We master various technologies such as injection molding,
dry pressing, and isostatic pressing. We select the optimal solution based on the complexity
and precision requirements of your part to achieve one-time precision molding of complex
irregular structures.
3:Full-Size Precision Machining: Sintered blanks can be precisely ground, drilled, and polished
using diamond tools. We guarantee a machining tolerance of ±0.02mm and a surface finish up
to a mirror effect, ensuring a perfect fit for your equipment.
Advantage:Extraordinary Advantages from Material Science
1: Extreme Hardness & Wear Resistance: Zirconia ceramic's Vickers hardness (HV) can reach
over 1250, with wear resistance far exceeding that of alumina ceramics and most metals,
capable of withstanding long-term particle erosion and friction.
2: Excellent Mechanical Strength & Toughness: Benefiting from the "phase transformation
toughening" effect, our zirconia components possess high flexural strength and fracture
toughness, can withstand high loads and certain impacts, and avoid brittle fracture.
3: Powerful Chemical Corrosion Resistance: Highly inert to most acids, alkalis, solvents,
and molten metals, can operate stably in highly corrosive media for long periods, with a
lifespan far exceeding that of stainless steel.
4: Excellent Biocompatibility & Insulation: The material is safe and non-toxic, suitable for
biomedical applications; it is also an excellent insulator, ideal for electronics and electrical fields.
Product packaging
1: Individually packed in anti-static foam
2: Vacuum-sealed for moisture protection
3: Labeled with part number, dimensions, and material grade
4: Shock-resistant outer packaging
5: Available in bulk or custom packaging
Q1. Do you provide product samples?
Yes, we provide samples subject to availability.
A nominal sample fee may apply in some cases, and shipping costs are borne by the customer.
Q2. What are your accepted payment methods?
We accept T/T (bank transfer) in advance, Western Union, Alipay, and PayPal.
Q3. What is your typical delivery lead time?
Lead times vary depending on product requirements, including material selection, dimensions, and specific manufacturing processes.
Q4. Do you perform quality inspection before shipment?
Yes, we conduct 100% inspection of all goods prior to delivery to ensure they meet specified standards.
Q5. What other ceramic materials do you offer?
We supply a range of advanced ceramic materials,
including Alumina, Zirconia, Aluminum Nitride,Boron Nitride, Silicon Nitride, Machinable Glass Ceramic, and related specialized ceramics.
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