Alumina Ceramic Metering Pump is a dosing pump whose wet-end (plunger + cylinder) is manufactured from alumina (Al₂O₃) technical ceramic. It delivers precise, repeatable volumes of liquids—from microliters to continuous low flows—especially where fluids are corrosive, abrasive, or purity-critical. The ceramic friction pair is precision-ground with micro-clearance to minimize slip and wear, helping maintain a stable setpoint with low pulsation and low drift over long duty cycles.
Alumina Ceramic Metering Pump Advantages
- Stable micro-dosing: low slip fit and polished contact achieve ±1% accuracy with low pulsation.
- Corrosion & wear control: alumina on alumina friction pair extends service interval in acid/alkali/oxidant media.
- Valveless option: simplified wet-end for shear-sensitive or particle-containing fluids.
- Cleanability: smooth bore and minimal dead volume support CIP/SIP-ready layouts when system hardware permits.
- Scalable geometry: interchangeable bores and strokes to cover micro- to high-throughput dosing lanes.
Properties of Alumina Ceramic Metering Pump
| Property | Unit | 99.5% Al₂O₃ | 99.6% Al₂O₃ | 99.7% Al₂O₃ | 99.8% Al₂O₃ | 99.9% Al₂O₃ | 99.99% Al₂O₃ |
| Alumina content | % | 99.5 | 99.6 | 99.7 | 99.8 | 99.9 | 99.99 |
| Density | g/cm³ | 3.89 | 3.91 | 3.92 | 3.93 | 3.94 | 3.98 |
| Open porosity | % | 0 | – | – | – | – | – |
| Color | – | Ivory | Ivory | Ivory | Ivory | Ivory | Ivory |
| Water absorption | % | – | 0 | 0 | 0 | 0 | 0 |
| Young’s modulus (Elastic modulus) | GPa | 375 | 356 | 357 | 358 | 359 | 362 |
| Shear modulus | GPa | 152 | – | – | – | – | – |
| Bulk modulus | GPa | 228 | – | – | – | – | – |
| Poisson’s ratio | – | 0.22 | – | – | – | – | – |
| Compressive strength | MPa | 2600 | 2552 | 2554 | 2556 | 2558 | 2570 |
| Flexural strength | MPa | 379 | 312 | 313 | 314 | 315 | 320 |
| Fracture toughness | MPa·m¹ᐟ² | 4 | – | – | – | – | – |
| Hardness | GPa | 14.1 (≈1440 kg/mm²) | 23 | 24 | 25 | 26 | 30 |
| Thermal conductivity | W/m·K | 35 | 32–37 | 33–38 | 34–39 | 35–40 | 36–42 |
| Thermal shock resistance ΔT | °C | – | 222 | 223 | 224 | 225 | 228 |
| Maximum use temperature (no load) | °C | ≤1750 | 1755 | 1760 | 1765 | 1770 | 1800 |
| Coefficient of thermal expansion | 10⁻⁶/°C | 8.4 | – | – | – | – | – |
| Specific heat | J/kg·K | 880 | – | – | – | – | – |
| Volume resistivity | Ω·cm | >1×10¹⁴ | >1×10¹⁴ | >1×10¹⁴ | >1×10¹⁴ | >1×10¹⁴ | >1×10¹⁴ |
| Dielectric constant (relative permittivity) | – | 9.8 | 9.83 | 9.84 | 9.85 | 9.86 | 9.92 |
| Dielectric strength | kV/mm | 16.9 | 23.2 | 23.4 | 23.6 | 23.8 | 24 |
| Dissipation factor (loss factor @ 1 kHz) | – | 0.0002 | – | – | – | – | – |
Specifications of Alumina Ceramic Metering Pump
| Item | Capacity（ml） | Precision | Purity |
| AT-CP-5001 | 0.02 | ≤0.5% | 95-99% |
| AT-CP-5002 | 0.5 | ≤0.5% | 95-99% |
| AT-CP-5003 | 1 | ≤0.5% | 95-99% |
| AT-CP-5004 | 2 | ≤0.5% | 95-99% |
| AT-CP-5005 | 3 | ≤0.5% | 95-99% |
| AT-CP-5006 | 5 | ≤0.5% | 95-99% |
| AT-CP-5007 | 7 | ≤0.5% | 95-99% |
| AT-CP-5008 | 10 | ≤0.5% | 95-99% |
| AT-CP-5009 | 15 | ≤0.5% | 95-99% |
| AT-CP-5010 | 16 | ≤0.5% | 95-99% |
| AT-CP-5011 | 20 | ≤0.5% | 95-99% |
| AT-CP-5012 | 25 | ≤0.5% | 95-99% |
| AT-CP-5013 | 0.3-2 | ≤0.1% | 95-99% |
| AT-CP-5014 | 0.5-3 | ≤0.1% | 95-99% |
| AT-CP-5015 | 1.0-5.5 | ≤0.1% | 95-99% |
| AT-CP-5016 | 2.0-7 | ≤0.1% | 95-99% |
| AT-CP-5017 | 2.0-7 | ≤0.1% | 95-99% |
| AT-CP-5018 | 2.0-10 | ≤0.1% | 95-99% |
| AT-CP-5019 | 3.0-15 | ≤0.1% | 95-99% |
| AT-CP-5020 | 5.0-25 | ≤0.1% | 95-99% |
| AT-CP-5021 | 10-50 | ≤0.1% | 95-99% |
Alumina Ceramic Metering Pumps Packaging
- Individual components are packed in vibration-absorbing foam
