The ZCP Series Zirconia Ceramic Precision Plunger is engineered for demanding metering pump and dosing system applications. Manufactured from high-purity yttria-stabilized zirconia (3Y-TZP), these plungers deliver exceptional wear resistance, dimensional stability, and chemical inertness that outperform traditional metal plungers in aggressive fluid handling environments.

Key Features

• Ultra-Precision Ground: Achieves ±0.005mm dimensional tolerance with mirror-polished surface finish Ra ≤0.1μm, ensuring consistent flow metering accuracy
• Superior Wear Resistance: Zirconia ceramic hardness exceeds 1200 HV, providing 5-8x longer service life compared to 316L stainless steel plungers in abrasive slurry applications
• Excellent Chemical Compatibility: Inert to most acids, alkalis, and organic solvents; ideal for pharmaceutical dosing, chemical injection, and fuel metering systems
• Low Friction Coefficient: Self-lubricating ceramic surface reduces seal wear and extends maintenance intervals, lowering total cost of ownership
• High Fracture Toughness: 3Y-TZP transformation toughening mechanism prevents catastrophic failure under cyclic loading and impact
• Thermal Stability: Maintains mechanical properties up to 400°C with minimal thermal expansion, ensuring dimensional stability across operating temperature ranges

Technical Specifications

Applications

Metering pumps, HPLC plunger pumps, chemical dosing systems, fuel injection pumps, medical syringe pumps, adhesive dispensing systems, and precision fluid handling equipment. Widely adopted in pharmaceutical, petrochemical, water treatment, and food processing industries.

Custom Manufacturing

We offer custom plunger dimensions from Ø3mm to Ø50mm in diameter and up to 300mm in length. Custom end configurations including flat, spherical, and tapered tips are available. Contact our engineering team with your drawings or specifications for a tailored solution.