Milligram-level valveless ceramic metering pump

Milligram-Level Valveless Ceramic Metering Pump

1. Product Overview

The Milligram-Level Valveless Ceramic Metering Pump is an ultra-precise, positive-displacement dispensing pump designed for sub-milligram to low-gram liquid dosing. Utilizing a valveless, rotating-reciprocating ceramic piston mechanism, this pump completely eliminates internal check valves, seals, and dynamic elastomers. Constructed with sapphire-grade technical ceramics, it delivers extreme accuracy, chemical immunity, and maintenance-free, pulse-free fluid transfer for critical low-volume manufacturing and laboratory automation.

2. Key Features & Advantages

• Valveless Reciprocating Design: Combines 360° piston rotation with linear displacement to control fluid inlet and outlet ports, eliminating valve clogging, jamming, and leakage.

• Milligram-Level Precision: Enables ultra-low volume dispensing down to 0.1 mg with exceptional repeatability ($le 0.3%$) and volumetric accuracy ($le pm0.5%$).

• Ultra-Hard Ceramic Components: Piston and cylinder liners are precision-lapped from high-purity zirconia ($ZrO_2$) or alumina ($Al_2O_3$), providing near-zero clearance, self-lubrication, and zero particulate shedding.

• Universal Chemical Compatibility: Resists aggressive acids, strong bases, organic solvents, sterile bio-fluids, and abrasive suspensions without degradation or metal ion leaching.

• Pulse-Free Dispensing: Delivers smooth, continuous, non-pulsating micro-flow, ideal for automated line dispensing, micro-spotting, and micro-filling.

3. Technical Specifications