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Fsh-Fmi2020-B Fluid Injection Metering Dispensing Pump
**FSH-FMI2020-B Series High-Precision Fluid Dispensing/Refilling Pump**
The FSH-FMI2020-B series of high-precision fluid dispensing and refilling pumps consists of a digital control box, a stepper motor, and one or two high-precision rotary ceramic pump modules driven by the motor. This system is designed with flexibility in mind, allowing for easy integration into various applications. Standard features include a 24V PLC I/O interface, a user-friendly 7-inch color touch screen, and multiple communication interfaces such as I/O, CC Trig, and AUX Out.
The FSH-FMI2020-B series offers a compact design that supports a wide power supply range (100V–240V), eliminating the need for voltage selection. The high-precision ceramic pump modules are corrosion-resistant, maintenance-free, and designed for simple assembly and disassembly. These features make the system ideal for environments where reliability and ease of use are essential.
The pump operates using a stepper motor that drives the ceramic piston/cylinder to produce reciprocating rotary motion. This motion controls the valve direction and switches the fluid inlet and outlet for precise dispensing. A detailed working principle diagram is available for reference.
**Key Features:**
- 7-inch color touch screen with user-friendly English/Chinese interface
- Options for single-end and double-end pumps (double-end offers better cost efficiency)
- High precision and repeatability (±0.3% accuracy)
- No fluid waste or dripping due to the drawback function
- Easy operation and flexible system integration
- Robust construction with minimal maintenance requirements
- Fast volume adjustment using gear screw mechanism
- Resistant to acids, alkalis, and chemicals
- Reliable sealing through an elastic sealing approach
- Maintenance-free design with no wearing parts
- Supports both dispensing and loop operation modes
- Multiple control interface options including PLC 24V I/O, CC Trig, and AUX Out
- Compatible with most fluids
- Long-lasting performance without wear on moving parts
- Customizable ceramic pump modules based on customer needs
**Technical Specifications:**
| Model | Max Dispensing Volume per Stroke (ml) | Standard Rate (r/min) | Accuracy |
|---------------------|----------------------------------------|------------------------|----------|
| FSH-FMI2020-B0-D | 0–1 | 0–1500 | ±0.3% |
| FSH-FMI2020-B0-S | 0–1 | 0–1500 | ±0.3% |
| FSH-FMI2020-B3-D | 0–3.2 | 0–1500 | ±0.3% |
| FSH-FMI2020-B3-S | 0–3.2 | 0–1500 | ±0.3% |
**Applications:**
- Lithium battery electrolyte injection
- Silicone oil atomization and spraying
- Fluid drug dispensing or filling
- Reagent dispensing or filling
- Contact lens dispensing
- Spraying or coating
- Flavor, essence, and liquid vitamin addition
This pump is ideal for industries requiring high precision, reliability, and versatility in fluid handling. Whether integrated into an automated production line or used in semi-automatic systems, the FSH-FMI2020-B series delivers consistent performance and long-term value.