Servo-driven, milligram-level ceramic valveless metering pump

Servo-Driven, Milligram-Level Ceramic Valveless Metering Pump — Product Specification & Description

1. Product Overview

The Servo-Driven, Milligram-Level Ceramic Valveless Metering Pump combines high-torque closed-loop servo control with precision valveless ceramic pumping technology. Designed for ultra-precise liquid dispensing, this system eliminates internal check valves, elastomeric seals, and dynamic packings. By utilizing continuous 360° rotation paired with axial stroke displacement of a sapphire-grade ceramic piston, it provides milligram-level dosing accuracy, high-speed repeatability, and pulse-free micro-fluidic delivery for automated production lines.

2. Key Features & Advantages

• Closed-Loop Servo Drive: High-resolution servo motor integration with absolute encoders allows real-time speed, position, and torque monitoring for instant volume adjustments and dynamic flow profiling.

• Valveless Positive Displacement: Eliminates check valves and springs, preventing mechanical jamming, valve lag, clogging, and backflow when pumping viscous or abrasive fluids.

• Milligram-Level Precision: Achieves dispensing volumes as low as 0.1 mg with exceptional volumetric accuracy ($le pm0.3%$) and repeatability ($le 0.15%$).

• Wear-Resistant Ceramic Fluid Path: Sapphire-grade zirconia ($ZrO_2$) or alumina ($Al_2O_3$) piston and sleeve assemblies feature tight clearance fits ($le 2mutext{m}$), providing self-lubricating, non-galling operation for tens of millions of cycles.

• Wide Chemical & Temperature Range: Inert ceramic wetted components resist harsh acids, alkalis, organic solvents, and high-temperature bio-fluids without leaching ions or shedding particulates.

3. Technical Specifications