An IVD analyzer can lose efficiency when its waste-liquid line drains slowly, retains cleaning fluid, or draws air before the cycle finishes. Choosing the right liquid pump helps you manage wastewater removal, rinse-fluid transfer, and intermittent air-liquid flow within a compact instrument. However, maximum flow alone cannot determine whether a pump will meet your drainage time, noise limit, or installation requirements.
The JSG18-C from Shenzhen Jingsuguang Technology Co., Ltd. provides a reversible DC pumping solution for medical diagnostic and laboratory equipment. Available in 12V and 24V versions, it offers a published maximum free liquid flow of 400 mL/min, a compact 74 × 54 × 41 mm body, and a specified noise level of ≤38 dB. This guide explains its capabilities, specifications, and selection requirements so you can evaluate the pump against your actual operating conditions.
What Is the JSG18-C Liquid Pump?
The JSG18-C is a miniature DC liquid pump designed for OEM integration in IVD analyzers and other diagnostic instruments. Its elastic compression mechanism supports liquid transfer and intermittent air-liquid handling, while reversing the motor polarity changes the flow direction.
These features support applications such as:
- IVD waste-liquid drainage: Transfer wastewater from reaction chambers and collection lines.
- Cleaning and rinse-fluid transfer: Move compatible cleaning solutions through equipment fluid paths.
- Reverse flushing: Change the pumping direction to support tubing rinsing and maintenance.
- Compact analyzer integration: Fit the pump into benchtop instruments with limited installation space.
Shenzhen Jingsuguang Technology Co., Ltd., operating under the JSG DC PUMP brand, has manufactured miniature pumps since 2003. Its ISO 9001:2015-certified quality management system supports controlled production processes, while OEM and ODM services cover model selection, sample evaluation, and project-specific integration.
What Are the Key Specifications of This DC Liquid Pump?
The JSG18-C series includes two voltage configurations. Both share the same published hydraulic specifications and physical dimensions.
| Specification | JSG18-C01 | JSG18-C02 |
|---|---|---|
| Rated voltage | 12V DC | 24V DC |
| Running current | 0.4A | 0.2A |
| Rated power | 4.8W | 4.8W |
| Maximum free liquid flow | 400 mL/min | 400 mL/min |
| Maximum vacuum | -85 kPa | -85 kPa |
| Maximum liquid head | 20 m | 20 m |
| Port outer diameter | 6.3 mm | 6.3 mm |
| Dimensions | 74 × 54 × 41 mm | 74 × 54 × 41 mm |
| Specified noise level | ≤38 dB | ≤38 dB |
| Weight | 165 g | 165 g |
The published performance data uses clean water at 20°C, 65% relative humidity, and no external load. Actual performance may vary by approximately ±10%.
The maximum free flow, maximum vacuum, and maximum liquid head represent different operating conditions. You should not expect the pump to deliver 400 mL/min while simultaneously achieving -85 kPa vacuum or a 20 m liquid head.
How Does a Reversible Liquid Pump Improve IVD Drainage?
During an analyzer’s drainage cycle, liquid and air may enter the tubing alternately. A pump capable of handling compatible air-liquid mixtures can help the system continue transferring fluid as the liquid supply approaches the end of a cycle.
The JSG18-C also supports reverse operation through motor polarity reversal. Your control system can use this function for drainage and selected flushing sequences, provided the electrical interface and operating cycle support the required direction changes.
Its check-valve-free structure removes one potential blockage point associated with conventional check-valve designs. However, the pump is not intended for solids handling. If hard, sharp, or metallic particles may enter the fluid path, use an inlet filter of 100 mesh or finer and assess the resulting flow restriction.
How Do You Choose the Right 12V or 24V Liquid Pump?
Follow these steps before ordering samples or approving a production configuration.
- Confirm the supply voltage. Choose JSG18-C01 for a 12V DC system or JSG18-C02 for a 24V DC system.
- Define the required working point. Specify the target flow under actual suction and discharge resistance rather than relying on free-flow data.
- Check the fluid path. Provide tubing dimensions, length, filter specifications, valves, and connection details. The pump uses 6.3 mm OD ports, with 4–5 mm ID soft tubing recommended.
- Verify media compatibility. Confirm the composition, concentration, and temperature of wastewater, cleaning solutions, disinfectants, or other liquids against the wetted materials.
- Validate the complete system. Test flow, drainage time, noise, vibration, temperature rise, duty cycle, and required service life under representative conditions.
JSG18-C01 vs. JSG18-C02: Which Should You Select?
The main difference is the rated voltage and running current. The JSG18-C01 operates at 12V and 0.4A, while the JSG18-C02 operates at 24V and 0.2A. Both have a rated power of 4.8W and the same published fluid performance.
Select the version that matches your power architecture, then verify its performance under your actual load. A lower current reading alone does not establish lower total energy consumption or better pumping performance.
Frequently Asked Questions
1. Can the JSG18-C pump handle IVD wastewater?
It can be evaluated for compatible wastewater and intermittent air-liquid transfer. You should assess contamination, filtration requirements, chemical compatibility, and the risk of deposits before integration.
2. Can this liquid pump transfer disinfectants or cleaning solutions?
Potentially, depending on the liquid composition, concentration, temperature, and wetted materials. Request compatibility information and conduct sample testing before approving the pump for routine operation.
3. Does the JSG18-C always deliver 400 mL/min?
No. The 400 mL/min rating represents maximum free liquid flow under no external load. Actual flow depends on system resistance, tubing, filters, fluid properties, voltage, and installation conditions.
Conclusion
Selecting the right liquid pump for an IVD analyzer requires more than comparing maximum flow rates. The JSG18-C combines reversible operation, a compact 74 × 54 × 41 mm design, 12V or 24V DC options, and a published maximum free flow of 400 mL/min for OEM evaluation. By defining your working point and validating fluid compatibility, drainage performance, noise, and duty cycle, you can determine whether this miniature liquid pump meets your equipment requirements.
Request OEM Sample Evaluation from JSG DC PUMP
Contact Shenzhen Jingsuguang Technology Co., Ltd. to discuss your application. Provide your supply voltage, liquid composition and temperature, target flow under load, suction lift, discharge head, tubing dimensions, duty cycle, installation space, and sample quantity. The engineering team can review your requirements and recommend a suitable configuration for sample testing before mass production.
