Alumina ceramic filling pump is a precision metering component used in automated filling machines to dispense controlled volumes of liquids, creams, gels, or pastes. It replaces traditional metal or plastic pump heads with high-purity alumina (Al₂O₃) ceramics, which provide superior wear resistance, chemical stability, and dimensional accuracy.
Alumina Ceramic Filling Pump Benefits
- Dose Stability at Small Volumes — fine clearances and rigid ceramics reduce thermal and wear-induced drift.
- Chemical & Aroma Compatibility — alumina resists acids/alkalis and aromatic compounds used in serums, flavours, and inks.
- Abrasion Resistance — handles pigments/fillers and paste-like media without rapid scoring of sealing faces.
- CIP-Ready Geometry — polished, low-entrapment cavities speed cleaning and changeover.
- Interchangeable Wear Sets — plunger, barrel, valve/seat are replaceable without re-engineering the head.
Properties of Alumina Ceramic Filling 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 | – | – | – | – | – |
Alumina Ceramic Filling Pump Specifications
Type 1: Alumina Filling Pump For Cosmetics
| Alumina Filling Pump For Cosmetics | |||
| Item NO. | Volmue (ml) | Purity (%) | Filling Accuracy (%) |
| AT-CP-001 | 0.2 | 95-99 | ＜1% |
| AT-CP-002 | 0.5 | 95-99 | ＜1% |
| AT-CP-003 | 1 | 95-99 | ＜1% |
| AT-CP-004 | 2 | 95-99 | ＜1% |
| AT-CP-005 | 3 | 95-99 | ＜0.5% |
| AT-CP-006 | 5 | 95-99 | ＜0.5% |
| AT-CP-007 | 7 | 95-99 | ＜0.5% |
| AT-CP-008 | 10 | 95-99 | ＜0.5% |
| AT-CP-009 | 15 | 95-99 | ＜0.5% |
| AT-CP-010 | 16 | 95-99 | ＜0.5% |
| AT-CP-011 | 20 | 95-99 | ＜0.5% |
Type 2: Alumina Filling Pump For Pharmaceutical and Biological Agents
| Alumina Filling Pump For Pharmaceutical and Biological Agents | |||
| Item NO. | Volmue (ml) | Al2O3's Purity (%) | Filling Accuracy (%) |
| AT-CP-1001 | 0.5 | 95-99 | ＜1% |
| AT-CP-1002 | 1 | 95-99 | ＜1% |
| AT-CP-1003 | 2 | 95-99 | ＜1% |
| AT-CP-1004 | 3 | 95-99 | ＜0.5% |
| AT-CP-1005 | 5 | 95-99 | ＜0.5% |
| AT-CP-1006 | 7 | 95-99 | ＜0.5% |
| AT-CP-1007 | 10 | 95-99 | ＜0.5% |
| AT-CP-1008 | 15 | 95-99 | ＜0.5% |
| AT-CP-1009 | 16 | 95-99 | ＜0.5% |
| AT-CP-1010 | 20 | 95-99 | ＜0.5% |
| AT-CP-1011 | 30 | 95-99 | ＜0.5% |
| AT-CP-1012 | 40 | 95-99 | ＜0.5% |
Type 3: Alumina Filling Pump For Food
| Alumina Filling Pump For Food | |||
| Item NO. | Volmue (ml) | Purity (%) | Filling Accuracy (%) |
| AT-CP-2001 | 1 | 95-99 | ＜1% |
| AT-CP-2002 | 2 | 95-99 | ＜1% |
| AT-CP-2003 | 3 | 95-99 | ＜0.5% |
| AT-CP-2004 | 5 | 95-99 | ＜0.5% |
| AT-CP-2005 | 7 | 95-99 | ＜0.5% |
| AT-CP-2006 | 10 | 95-99 | ＜0.5% |
| AT-CP-2007 | 15 | 95-99 | ＜0.5% |
| AT-CP-2008 | 16 | 95-99 | ＜0.5% |
| AT-CP-2009 | 20 | 95-99 | ＜0.5% |
| AT-CP-2010 | 30 | 95-99 | ＜0.5% |
| AT-CP-2011 | 40 | 95-99 | ＜0.5% |
| AT-CP-2012 | 40-220 | 95-99 | ＜0.5% |
Type 4: Alumina Filling Pump For Battery Electrolytes
| Alumina Filling Pump For Battery Electrolytes | ||||
| Item NO. | Volmue (ml) | Purity (%) | Volume ofBattery Electrolytes (g) | Filling Accuracy (%) |
| AT-CP-3001 | 0.5 | 95-99 | 0.5g | ＜0.3% |
| AT-CP-3002 | 1 | 95-99 | 1g | ＜0.3% |
| AT-CP-3003 | 2 | 95-99 | 3g | ＜0.3% |
| AT-CP-3004 | 3 | 95-99 | 8g | ＜0.3% |
| AT-CP-3005 | 4 | 95-99 | 18g | ＜0.3% |
| AT-CP-3006 | 5 | 95-99 | 40g | ＜0.3% |
Alumina Ceramic Filling Pump Packaging
- Each plunger/barrel/valve seat set is separated with soft liners and bagged to keep surfaces clean.
