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High-Performance 3V Mini Diaphragm Air Pump for Medical Oxygen Compressors

Short Description:

The PINMOTOR series 3V mini diaphragm air pump is a precision-engineered solution specifically optimized for the next generation of portable oxygen concentrators (POC) and medical-grade compressors. As a professional micro diaphragm pump manufacturer, PINMOTOR combines compact design with industrial-grade reliability to meet the rigorous demands of continuous medical operation.

 


  • Model Number: 520
  • Type: Air transfer pump
  • Material: ABS
  • Princle: Vacuum pump
  • Drive way: Electric
  • Product Detail

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    Technology FAQ

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    Customized Service

    To provide customers with quality products and satisfactory service

    MOQ 500pcs

    Fast Delivery

    Customized Sample

    Excellent Quality

    Competitive Price

    Modern Testing Equipment

    PYP520-XA Micro Air Pump 

    As your dedicated OEM mini diaphragm pump manufacturer, we provide more than just hardware. Every unit undergoes a strict 100% aging test in our ISO9001-certified facility. We offer full technical support to help you calibrate the flow rate and operating voltage to match your specific application requirements.

    Medical-Grade Quiet Technology

    Ultra-Compact Form Factor

    Low-Noise Signature

    Real-world performance testing of PINCHEHG mini air pump in a medical oxygen concentrator prototype at PINMOTOR lab.

    Technical Specifications

    Technical Parameter Performance Data by Voltage
    Rated Voltage DC 3V DC 6V DC 9V DC 12V DC 24V
    Rated Current < 1200mA < 600mA < 430mA < 300mA < 150mA
    Power 3.6 W 3.6 W 3.6 W 3.6 W 3.6 W
    Tap O.D. (Nozzle) Ø 4.5 mm
    Air Flow (No Load) 1.5 - 4.0 LPM
    Max Pressure > 80 KPa (600 mmHg)
    Noise Level < 65 dB (at 30cm distance)
    Life Test > 500 Hours (Continuous)
    Weight Approx. 68.0 g

    Specification Engineering Drawing

    Technical drawing showing dimensions and nozzle specifications for PINCHEHG 3V micro diaphragm pump.

    Engineering Integration Notes

    Technical guidance for integrating the PINCHEHG 3V Pump into medical device prototypes.

    1. Power Management

    • Inrush Current: Ensure your PCB can handle a peak startup current of up to 2x the rated current to prevent voltage drops.
    • PWM Control: This motor supports Pulse Width Modulation (PWM) for precise flow rate adjustment between 60% - 100% duty cycle.

    2. Acoustic Design

    • Isolation: Use 50-durometer rubber mounts to isolate the pump from the main chassis to minimize structural resonance.
    • Muffling: Adding a 5cm intake silicone tube can further reduce high-frequency air intake noise by up to 3dB.

    3. Pneumatic Best Practices

    • Heat Dissipation: For continuous operation (>30 mins), ensure a minimum airflow clearance of 10mm around the pump housing.
    • Filtration: Use a 5-micron air filter at the inlet to protect the EPDM valves from airborne particles in medical environments.

    4. Tubing Compatibility

    • Connector: The 3.2mm barbed nozzle is optimized for 3.0mm ID medical-grade silicone or PVC tubing for a leak-proof friction fit.

    Product Applications

    Industry / Application Specific Use Case Why Use PINCHEHG 3V Pump? 
    Medical Devices Portable Oxygen Concentrators (POC) High Efficiency & Low Heat: Optimized 3V DC motor ensures extended battery life for handheld medical devices while maintaining stable oxygen flow.
    Healthcare Monitoring Wearable Blood Pressure Monitors Ultra-Compact Size: Its miniature footprint allows for seamless integration into wrist-based or portable cuff devices without adding bulk.
    Environmental Sensing Portable Gas Detectors & Air Samplers Precise Flow Control: Provides the consistent suction required for sensitive gas sensors to deliver accurate air quality readings in real-time.
    Consumer Electronics Scent Delivery & Aromatherapy Diffusers Whisper-Quiet Operation: Advanced noise-dampening design ensures the device operates under 55dB, ideal for office or bedside environments.
    Laboratory Automation Microfluidic Liquid Handling (Air Drive) Quick Response Time: The low-inertia diaphragm allows for rapid start-stop cycles, essential for precise micro-dosing and liquid movement.
    Tea set application using a food-grade micro DC water pump for automatic water dispensing.

    Tea table

    Small vacuum packing appliance using a miniature DC pump for air extraction.

    Vacuum packing machine

    Bottled water dispenser application requires a safe, food-grade mini electric water pump.

    Water dispenser

    Automatic foam hand sanitizer dispenser powered by a micro electric pump.

    Foam hand sanitizer

    Electric wine decanter utilizing a small DC pump for fluid circulation.

    Electric decanter

    Dishwasher appliance utilizing a reliable DC water pump for water circulation.

    dishwasher

    Manufacturing Quality & Compliance

    At PINMOTOR, our manufacturing philosophy is built on the "Zero-Defect" principle. We understand that a 3V mini diaphragm air pump is often the heart of a life-saving medical device, which is why our quality management system (QMS) is strictly aligned with international standards.

    Official ISO 9001:2015 Certification Badge for Pinmotor high-quality manufacturing.

    ISO 9001:2015 Certified

    Our quality management system ensures consistent product output, from raw material inspection to final functional testing of Every PINCHEHG series pump.

    Pinmotor Automotive Quality Management System (IATF 16949:2016 Certified)

    IATF 16949 Compliant

    We leverage automotive-grade process discipline to guarantee ultra-low defect rates and long-term reliability in consumer electronic applications.

    reach

    RoHS & REACH Fully Compliant

    All materials used in Every PINCHEHG series pump—including the motor brushes, diaphragm, and housing—are free from hazardous substances, ensuring your end-product is ready for the EU and North American markets.


    Manufacturing Quality & Compliance

    Rigorous Testing Protocol

    Every 3V micro pump is subjected to a 100% aging test and pressure stability check. Our ISO 9001:2015 certified facility ensures that each batch meets the high reliability required for medical oxygen compressors.

    Regulatory Compliance

    • RoHS & REACH: 100% Lead-free and non-toxic materials.
    • Medical Grade: Oil-free design for clean air output.
    • SGS Audited: Transparency in every step of production.

    We supply more than just product, we engineer solutions optimised to suit your application requirements.

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  • How do I choose the right voltage for my oxygen compressor pump?

    While this model is optimized for 3V DC, we also offer 6V and 12V versions. For portable oxygen concentrators (POC), 3V is ideal for battery-powered efficiency. However, ensure your PCB can handle the peak start-up current to maintain consistent air pressure.

    What is the expected lifespan of this mini diaphragm pump?

    Under standard lab conditions (20°C), the PINCHEHG series offers a continuous working life of 500 to 1,000 hours depending on the motor type (brushed vs. brushless). For medical-grade stability, we recommend periodic testing under your specific load conditions.

    Can this pump handle high-humidity environments in medical use?

    Yes. Our diaphragms are made of high-quality EPDM/Silicone materials, which provide excellent resistance to moisture and heat. This makes them perfect for oxygen concentrators that include humidification components.

    How does PINMOTOR ensure the low noise level required for home care devices?

    We utilize a patented balanced eccentric wheel design and high-precision motor carbon brushes to reduce mechanical vibration. In a standard test environment, the noise level remains below 55dB at a 30cm distance.

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