Sapphire Plunger with Metal Shank
Sapphire plungers with metal shank provide excellent wear resistance, chemical stability, and sealing performance. Ideal for fluid pumps and precision dosing systems. Assemblies with sapphire and metal are available to meet high-pressure, custom-fit applications in medical, analytical, and industrial equipment.
- Superior hardness ensures minimal wear
- Excellent chemical and acid resistance
- High dimensional precision for tight sealing
- Smooth, polished surface for low friction
- Custom production available
Sapphire Plunger with Metal Shank
The sapphire plunger is made from synthetic sapphire and delivers high hardness, smoothness, and chemical stability. It’s ideal for medical, analytical, and precision pump systems requiring low friction, excellent wear resistance, and dimensional consistency. Each sapphire plunger operates reliably in harsh or chemically reactive environments, providing stable, repeatable performance over long cycles.
Technical Specifications
| Parameter | Typical Range (may vary for different shapes/materials) |
| Length Range | ≤300mm |
| Outer Diameter | ≤50mm |
| Drilling-Minimum Hole Diameter | ≥φ0.4mm |
| Length/Thickness Precision | ±0.005mm |
| Ourter Diameter Precision | 1-25mm: ±0.002mm 20-50mm: ±0.003mm |
| Surface Roughness | Ra0.02 |
Please refer to our Processing Capability Table for the full range of processing capability.
Advantages of Sapphire Plunger with Metal Shank
- High Hardness and Scratch Resistance: Sapphire offers exceptional durability and resistance to wear, ensuring long-lasting precision in repetitive motion applications.
- Chemical and Corrosion Resistance: Sapphire is chemically inert, making it ideal for use in corrosive or chemically reactive environments.
- Smooth Surface Finish: Provides low friction and minimal particle generation, which is critical for clean and controlled movements.
- Thermal Stability: Withstands extreme temperatures without degrading or losing dimensional accuracy.
- Enhanced Mechanical Support: The metal shank provides robust mechanical stability and easier mounting or integration with devices.
- Biocompatibility: Safe for use in medical and biological environments due to its inert and non-reactive properties.
Applications of Sapphire Plunger with Metal Shank
- Medical Equipment: Commonly used in precision drug delivery systems and surgical instruments requiring durability and biocompatibility.
- Fluid Dispensing Systems: Ensures accurate fluid control in inkjet printing, microfluidics, and chemical analysis tools.
- Analytical Instruments: Applied in chromatography and spectroscopy systems for smooth, contamination-free performance.
- Industrial Valves and Pumps: Enhances reliability and precision in harsh chemical or high-pressure environments.
- Optomechanical Assemblies: Used in alignment or positioning systems where precision movement and wear resistance are key.
- Semiconductor Manufacturing: Ideal for high-purity, abrasion-resistant components in wafer processing and handling.
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