How Does A Gear Pump Work Efficiently in IVD Equipment?

Whether it's a biochemical analyzer or a chemiluminescence immunoassay analyzer, their fluidic systems face two core challenges:

⭕️ Thorough Cleaning:​ The inner diameter of sampling needles is very small. How to provide sufficient pressure to flush away protein residues and prevent cross-contamination?

⭕️ Precise Transfer:​ How to ensure highly consistent dispensing of reagents and samples to guarantee the repeatability of test results?

Traditional peristaltic pumps and diaphragm pumps often encounter problems such as insufficient pressure, flow pulsation, and declining accuracy after extended operation​ when faced with high resistance and high-pressure requirements.

This is precisely where gear pumps excel.

01. Suofu Micro Magnetic Gear Pump: The Ideal Partner for IVD Equipment

[Gear pump schematic diagram]

1. Long Service Life, Adapts to Continuous Operation

• ✅ Challenge Addressed:​ Meets the 24/7 continuous operation demands of fully automated IVD (In Vitro Diagnostics) equipment.

• ✅ Core Capability:​ Suofu micro magnetic gear pumps can operate continuously for over 30,000 hours under low-pressure conditions of 5Bar.

2. High-Pressure Cleaning, Eliminates Cross-Contamination

• ✅ Challenge Addressed:​ Provides a high-pressure flushing solution for stubborn residues in sampling needles and reaction cuvettes.

• ✅ Core Capability:​ The entire Suofu NP series of gear pumps achieves a differential pressure of 20Bar (customizable up to 40Bar), far exceeding conventional pump types. High pressure and excellent sealing ensure stable cleaning flow even in high-resistance pipelines, achieving thorough flushing.

3. Precise Metering, Ensures Reliable Results

• ✅ Challenge Addressed:​ Ensures highly consistent dispensing for every addition during reagent allocation and sample dilution.

• ✅ Core Capability:​ Flow accuracy as high as ±0.1%, combined with a pulsation-free output characteristic, elevates the control precision of micro-volume reagents to a new level, easily enabling automated closed-loop control.

4. Superior Corrosion Resistance, Handles Complex Reagents

• ✅ Challenge Addressed:​ Withstands long-term erosion from acidic cleaning solutions, alkaline buffers, and organic solvents.

• ✅ Core Capability:​ Offers various medical-grade corrosion-resistant material combinations, including pump bodies (316L stainless steel, Hastelloy, or PEEK), PEEK gears, ceramic shafts, and various medical-grade sealing ring materials, ensuring long-term stability in harsh chemical environments.

5. Gas-Liquid Mixed Transfer, Handles Bubbles with Ease

• ✅ Challenge Addressed:​ Bubbles in the fluidic path are a common cause of dispensing errors.

• ✅ Core Capability:​ Possesses excellent dry-run and gas-liquid two-phase transfer capabilities. Even if bubbles appear in the pipeline, transfer can be maintained, significantly reducing system failure rates.

02. Typical Application Scenarios

03. Authoritative Certifications, Quality Assurance

The Suofu NP series has passed authoritative certifications such as ISO9001, CE, and RoHS. Each pump undergoes 100% performance testing​ and accelerated lifespan verification​ before leaving the factory. Customization services​ for motors, interfaces, flow rates, etc., are also available, providing you with a complete fluidic system solution.

04. Conclusion

In IVD (In Vitro Diagnostics) equipment, the pump is not an isolated component but the cornerstone of precise detection.

If you are looking for a fluidic solution with long service life, high pressure, high precision, and high reliability, welcome to contact the Suofu team for professional support!

Shanghai Super Fluid Co., Ltd.

Shanghai Super Fluid Co., Ltd. (Suofu), has an R&D and sales center in Shanghai (Shanghai Suofu) and a production base in Sanming City, Fujian Province (Sanming Suofu). With its own R&D team and independent production factory, the company occupies a total area of 2000㎡, including a 1600㎡ production workshop and a 200㎡ warehouse. SUOFU is constructing a new plant covering 19 acres with a building area of 20,000 square meters. Sanming Suofu is recognized as a National High-Tech Enterprise​ and a Specialized, Refined, Distinctive, and Innovative (SRDI) Enterprise. Located in the Fujian Zhongguancun Science Park, the company has won the second prize in the Fujian Innovation and Entrepreneurship Competition and advanced to the national finals.

The company holds 29 patents​ and has participated in 25 national and provincial-level R&D projects.

Suofu Product Advantages:

• Special Gear Profile Design:​ Proprietary gear profile design provides excellent wear resistance andnear-pure rolling gear meshing.

• Special Cavity Profile Design:​ Adapts to operating conditions with wide-ranging outlet pressure variations, performing well under low pressure, high pressure, or short-term reversal.

• Pulsation-Free Outlet Pressure:​ High-precision part machining and structural design ensure smooth liquid delivery.

• One-Shot Injection Molded Gears:​ The working tooth surfaces of the gears are manufactured using high-precision one-shot injection molding without subsequent mechanical machining, ensuring gear working surface integrity.

• High-Precision Ceramic Shaft:​ High-precision ceramic shafts offer exceptional wear resistance and rigidity, ensuring reliable pump operation under abrasive liquid and high-pressure conditions.

• Capable of Long-Term Dry-Running Self-Priming:​ In applications requiring the pump's inlet vacuum to draw in the medium, the NP series products provide reliable performance.

• Multiple Motor Options Available:​ Options include AC explosion-proof, AC variable frequency, single-phase/three-phase AC, DC brushed, DC brushless, DC brushless with built-in driver, and shielded DC brushless motors with built-in driver.

  

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