
Introduction
Deliver uninterrupted, pulse-free liquid flow for long-duration laboratory experiments.
Unlike conventional syringe pumps that must stop for refilling, the U.S.Solid Continuous Syringe Pump alternates two synchronized syringe channels. While one syringe dispenses liquid, the other simultaneously refills, providing continuous fluid delivery when paired with external check valves and T-valves.
Compatible with 10 μL to 20 mL syringes, the system delivers flow rates from 0.001 μL/min to 36.859 mL/min, making it suitable for microfluidics, analytical chemistry, electrospinning, long-duration dosing, and other precision laboratory applications.
Applications

Features

More Details

Packing List
Syringe Pump *1, Power Cable *1, Syringe *2.
User Manual
For detailed information on installation, setup, and usage, please refer to the user manual.
Continuous Liquid Supply Principle
During operation, one syringe dispenses liquid while the other simultaneously refills.
Once the dispensing syringe reaches its target volume, the two syringes automatically exchange roles.
Combined with external check valves and T-valves, this alternating cycle delivers smooth, uninterrupted liquid flow for long-duration laboratory applications.
Technical Data
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| SKU | JFSP00009 | Model | USS-SP00009 |
|---|---|---|---|
| Pump Type | Dual-Channel Continuous Infuse/Withdraw Syringe Pump | Channels | 2 |
| Flow Rate Range | 0.001 μL/min - 36.859 mL/min | Compatible Syringe Size | 10 μL - 20 mL |
| Operating Modes | Infuse, Withdraw, Withdraw-then-Infuse, Infuse-then-Withdraw, Continuous Operation | Maximum Stroke | 140 mm |
| Stroke Resolution | 0.156 μm | Linear Speed | 5 μm/min - 65 mm/min |
| Display | LCD Screen | Accuracy | Error ≤±0.5% (when the stroke is at least 30% of the maximum stroke) |
| Linear Force | 250 N | Communication Interface | RS485 |
| Calibration Function | Supported | Memory Function | Power-Off Memory |
| Power Supply | AC 90-260V, 15W | Net Weight | 3.8 kg |
| Dimensions | 280 × 210 × 140 mm | Operating Temperature | 0°C - 40°C |
| Operating Humidity | <80% RH | Syringe Selection | Built-in & Custom Syringe Configuration |
FAQ
1. How is this different from a standard syringe pump?
Unlike a standard syringe pump that must stop when the syringe reaches the end of its stroke, this continuous syringe pump alternates between two synchronized syringes. While one syringe dispenses liquid, the other refills, helping provide uninterrupted liquid delivery for long-duration experiments.
2. Do I need external valves for continuous operation?
Yes. Continuous liquid delivery requires external check valves and T-valves. These components help direct the liquid flow during syringe switching and are shown in the connection diagram above.
3. How does the continuous liquid supply work?
One syringe dispenses while the other refills. Once the dispensing syringe reaches the target volume, the two syringes automatically exchange roles. With external check valves and T-valves, this alternating cycle helps maintain continuous liquid delivery.
4. What operating modes are available?
The pump supports five operating modes: Infusion, Withdrawal, Withdraw-then-Infuse, Infuse-then-Withdraw, and Continuous operation.
5. What flow rates can this pump achieve?
The available flow rate depends on the syringe diameter and the pump's linear speed. Smaller syringes provide ultra-low flow rates for precision dispensing, while larger syringes allow higher flow rates for larger-volume transfer.
This pump supports syringe sizes from 10 μL to 20 mL. Additional syringe sizes can be configured by selecting from the built-in syringe library or entering a custom syringe inner diameter.
| Syringe Size | Reference Flow Rate |
|---|---|
| 10 μL | 0.001 μL/min – 0.0128 mL/min |
| 100 μL | 0.0101 μL/min – 0.1307 mL/min |
| 1 mL | 0.0875 μL/min – 1.1373 mL/min |
| 10 mL | 1.0821 μL/min – 14.068 mL/min |
| 20 mL | 1.4176 μL/min – 36.859 mL/min |
6. Can I use syringes that are not listed in the built-in library?
Yes. The pump includes a built-in syringe library and also supports manual entry of custom syringe inner diameters.
7. Can the pump be controlled by a computer?
Yes. The built-in RS485 communication interface allows connection with external control systems for laboratory automation.
8. How does the pump ensure reliable operation?
The pump includes flow calibration for improved dispensing accuracy, Stall protection that stops operation if excessive resistance is detected, and power-off memory that retains operating parameters after a power interruption.
9. Is this pump suitable for microfluidic applications?
Yes. With flow rates as low as 0.001 μL/min, this pump is suitable for microfluidics and other low-flow precision liquid handling applications.
10. Is this syringe pump intended for medical or clinical use?
No. This product is designed for laboratory research and scientific applications only. It is not intended for clinical, diagnostic, or patient infusion use.
11. What warranty does this syringe pump include?
We offer a one-year quality warranty. See more about our return policy.
