Product Name:
Alumina Ceramic Metering Pump Precision Fluid Control Unit
Product Material:
High-Purity Alumina Ceramic (Al₂O₃ 99.5%-99.8%). For key friction pairs or impact-prone components such as valve seats and cores, Zirconia Toughened Alumina (ZTA) composite reinforcement can be employed.
Material Characteristics:
Ultra-high hardness (Mohs hardness 9) and exceptional wear resistance, Excellent chemical corrosion resistance (resistant to strong acids, alkalis, organic solvents, and oxidizing/reducing atmospheres), Extremely high rigidity and dimensional stability, Good electrical insulation and dielectric strength, Very low tendency for media adsorption and contamination, Surfaces capable of achieving nano-level smoothness (Ra < 0.05 µm), High material purity with no metal ion leaching.
Application Fields:
Complete fluid control modules for high-precision metering pumps, including integrated ceramic pump heads, multi-function valve blocks, precision manifold plates, as well as core individual components like plunger/cylinder assemblies, check valves, and relief valves.
Application Industries:
Fluid Control (Precision chemical processing, water treatment, food & beverage), Petrochemical (Catalyst addition, corrosive media transfer), Biomedical (Pharmaceuticals, in-vitro diagnostic reagent handling), New Energy (Precision metering of lithium battery electrolytes), Semiconductor Manufacturing (Ultra-pure chemical distribution).
Processing Difficulties:
Achieving defect-free integral molding and sintering of integrated pump heads or valve blocks with multi-chamber and multi-flow channel designs; Ensuring high-dimensional accuracy and superior surface quality of complex internal interconnected flow channels; Controlling geometric tolerances and fit clearances among multiple precision mating surfaces (e.g., plunger and cylinder, valve core and seat); Achieving ultra-high flatness and low roughness on large sealing end faces; Ensuring structural integrity of the module under cyclic high pressure.
Processing Flow:
Application analysis and modular design → High-purity powder batching and homogenization → Precision isostatic pressing or injection molding (for complex modules) → High-temperature sintering in a controlled atmosphere → Precision grinding of datum surfaces → Multi-axis precision CNC machining center for flow channel and cavity processing → Ultra-precision jig grinding of key bore systems and mating surfaces → Surface finishing via ultrasonic and CMP processes → Helium mass spectrometer leak testing and flow/pressure performance testing → Cleanliness inspection and cleanroom packaging
Delivery Period:
Standard individual functional components: 40-65 days
Customized integrated fluid control modules: 80-140 days
The precision fluid control unit of the alumina ceramic metering pump is an integrated and high-performance solution designed for the demanding fluid processing requirements in high-end process industries. It integrates the core fluid functions of the metering pump - suction, discharge, metering, cutoff and pressure control - into one or more optimized ceramic modules. Compared with the traditional scattered assembly of metal components, this unit eliminates the reliability bottlenecks caused by material corrosion, wear, seal failure and dead zone contamination at the source through the excellent material properties of alumina ceramics and the integrated structural design. It sets a new standard for achieving long-term, stable and ultra-pure fluid precision control.
Key Features:
Unparalleled Media Compatibility and Purity Assurance – The inertness of alumina ceramic towards the vast majority of chemicals allows the same unit to safely handle diverse fluids, from high-purity deionized water to concentrated acids and organic solvents, without material compatibility concerns. Its dense, non-porous, and zero-leaching properties ensure absolute fluid purity, making it particularly suitable for biopharmaceutical and semiconductor processes sensitive to cross-contamination and metal ions.
