High Precision Zirconia Ceramic Pin Gauge

ZrO2 Ceramic Pin Gauge

Product Description

Zirconia Ceramic Gauges are core reference components for high-precision aperture measurement and length measurement, made from high-purity zirconia through precision forming and polishing. Compared to traditional alloy steel needle gauges, they offer significant advantages in hardness, stability, and environmental adaptability: their coefficient of thermal expansion is close to that of steel, allowing for controllable temperature drift; their ultra-high hardness results in an ultra-long service life; their corrosion resistance enables maintenance-free operation; and their insulating and non-magnetic properties make them ideal for high-end manufacturing fields such as electronics and semiconductors. Widely used in mold processing, aerospace, and other industries, they are primarily used for aperture inspection, precision instrument calibration, and reference setting, gradually replacing traditional steel gauges and becoming a key fundamental component for ensuring the accuracy of high-end equipment, reducing quality control costs, and improving measurement reliability.

Core material properties

Ceramic Gauges use 3 mol% yttrium-stabilized tetragonal zirconia (Y-TZP) as the main material and possess the following excellent physicochemical properties.

Product Advantages

1. Superior wear resistance and significantly extended lifespan

Zirconia ceramics boast a hardness of up to 1300 HV, far exceeding that of steel (approximately 800 HV). Its wear resistance is 5-10 times that of ordinary steel needle gauges and 1.5-2 times that of cemented carbide. In measurement operations involving frequent insertion and removal, it can significantly reduce wear, lower replacement frequency, and achieve long-term stable use.

      2.Excellent corrosion resistance

Exhibits outstanding stability against acids, alkalis, and most chemical media; rust-free and requiring no rust-prevention treatment; can be handled directly with bare hands; easy to maintain. Particularly suitable for environments with stringent cleanliness and corrosion resistance requirements, such as chemical and medical industries.

     3.Non-magnetic and insulating,

Zirconia ceramics are completely non-magnetic, do not affect the measurement results of precision testing equipment such as MRI, and do not attract iron filings or magnetic dust, making them suitable for magnetically sensitive environments (such as electronic semiconductors and aerospace precision assembly).

    4.Excellent dimensional stability

Its coefficient of thermal expansion (10.3 × 10⁻⁶/℃) is close to that of steel, with an extremely low annual rate of change, allowing for extended calibration cycles and ensuring long-term measurement accuracy.

     5.Ultra-smooth surface protects the workpiece

Surface roughness can reach Ra≤0.05-0.20μm. After precision polishing, the surface is smooth and delicate, preventing scratches on the inner wall of the workpiece during measurement and protecting the surface quality of precision parts.

Technical Specifications

Standard lengths are typically 50mm or 100mm, but can be customized to a diameter range of 0.3-40mm and special lengths according to customer requirements.

Main Applications

Product Forms and Customization Services

1.In addition to standard cylindrical needle gauges, various structural forms are also available.

    (1)Flat pin gauge (standard type)

    (2)Single-convex/double-convex pin gauge (for measuring special hole types)

    (3)Irregular-shaped pin gauge (customized for non-standard cross-sections)

    (4)Pin gauge with handle (easy to operate, laser engraving available for diameters ≥1.5mm

2.Customization capabilities

    (1)Minimum outer diameter up to φ0.01mm

    (2)Outer diameter tolerance up to ±0.0001mm

    (3)Roundness up to 0.0001mm

Usage and Maintenance Recommendations

1. Storage: no special rust prevention treatment is required. Store in a dry environment. Excellent long-term stability.
2. Cleaning: can be cleaned with a neutral detergent solution. The surface does not absorb contaminants and is easy to clean.
3. Usage: avoid severe impacts (although it has high hardness, ceramic materials are relatively more brittle than metals).
4. Calibration: regular calibration is recommended. Its dimensional stability can extend the calibration cycle.

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.