Micro 2-Way Solenoid Valve for Eye Massager & Medical

Short Description:

The miniature solenoid valve is designed for precise pneumatic control, delivering stable and reliable performance. As a normally open type, it weighs only 9 grams and features a compact structure, making it suitable for eye massagers, medical devices, beauty instruments, and other portable smart products. It incorporates technology and quality from a leading Chinese manufacturer, meeting high standards for miniature pneumatic control.

Rated Voltage: DC 3V-DC 12V

Maximum Pressure: 40 KPa (300 mmHg)

Air Tap O.D.: Ø 3.0 mm

Weight: About 9.0g

Dimension: About 30.8mm x 12.1mm x 10.1mm

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XEB Micro 2-way solenoid valve

As a normally open two-way valve, it precisely controls the airflow by opening and closing the single air path, enabling efficient inflation, pressure maintenance, and exhaust. Its fast response ensures smooth and repeatable inflation and deflation cycles, providing a comfortable and accurate massage experience. Compact and reliable, it is ideal for integration into portable medical, beauty, and smart devices.

Ultra-Miniature & Lightweight Design

Optimized 2-Way Function for Eye Massagers

Excellent Air Tightness & Fast Response

Ultra-small 9g micro solenoid valve size comparison with coin

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Technical Specifications

2-way Micro solenoid valve
*OEM/ODM Service available, contact us to get more details!
Rate Voltage	DC 3	DC 3.7V	DC 6V	DC 9V	DC 12V
Rate Current	375±10%mA	308±10%mA	240±10%mA	225±10%mA	200±10%mA
DC Resistance	8±10%Ω	12±10%Ω	25±10%Ω	40+ 10%Ω	60± 10%Ω
Power	1.12 W	1.37 W	1.44 W	2.02 W	2.4W
Air Tap O.D	φ 3.0mm
MaximumPressure	40KPa(300mmHg)
Medium	Air
Exhaust Speed	< 4sec (from 300 to 15 mmHg in a 100cc tank)
Life Test	≥200,000 Times (ON 5秒，OFF 5秒)
Leakage	<3mmHg/min ( under 300 mmHg in a 100cc tank )
OperationTemperature	0 ~50°C 30%to 85%RH
Weight	9g

Specification Engineering Drawing

Normally open 3-way solenoid valve pneumatic flow logic diagram.

Engineering Integration Notes

Operation Principle:
The valve is normally open, meaning air can flow freely through its primary path when unpowered. Energizing the solenoid redirects or blocks airflow, enabling precise control over inflation, pressure maintenance, and exhaust functions.
Fast Response & Efficiency:
Engineered for rapid air cycling, the valve completes inflation and deflation sequences efficiently. This ensures consistent performance in applications requiring repeated, precise pneumatic actions, such as massage systems.

Electrical Control:
The valve responds directly to voltage signals. Its normally open configuration allows fail-safe operation—airflow continues if power is interrupted. Engineers should design control circuits that accommodate the valve’s switching behavior and ensure safe operation under all conditions.
Maintenance & Reliability:
Minimal maintenance is required under normal operating conditions. Clean, particle-free air extends the service life, while the valve’s robust construction ensures consistent operation over repeated cycles.

High-precision internal structure of Pinmotor micro 3-way air valve

Product Applications

Application Scenario	Key Benefit for the Design	Recommended Power Source
Eye Massagers	Compact and lightweight design allows integration into small massage devices; fast and precise air control ensures smooth inflation and deflation cycles for comfortable massage.	Lithium-ion Battery
Medical Devices	Normally open structure ensures airflow in case of power loss, maintaining safety for critical pneumatic functions; simple two-way design enables reliable on/off control.	Regulated DC Power
Beauty Instruments	Quick and stable inflation/deflation cycles deliver consistent performance for beauty treatments; high reliability supports repeated use without performance degradation.	Battery Pack or Adapter
Portable Smart Devices	Small form factor and low weight allow seamless integration into portable devices; minimal maintenance required for long-term operation.	DC Power Supply
Air Cushions / Pneumatic Systems	Two-way valve design enables precise control of air supply and exhaust; rapid response optimizes inflation/deflation cycles and improves airbag durability.	Regulated DC Power

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Manufacturing Quality & Compliance

The Micro 2-Way Solenoid Valve delivers accurate control of airflow in small-scale devices. Its compact design ensures seamless integration, while robust construction guarantees consistent performance. This valve is ideal for applications in medical equipment, beauty tools, and portable smart devices.

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

ISO 9001:2015 Certified

Ensures consistent product output through rigorous quality management, from raw material inspection to final functional testing.

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

IATF 16949 Compliant

Adopts automotive-grade process discipline to minimize defect rates and ensure long-term reliability in consumer electronics.

RoHS & REACH Fully Compliant

All materials—including motor brushes, diaphragms, and housings—are free of hazardous substances, making the valve suitable for both EU and North American markets.

Technical Note: Full documentation, including material safety data sheets (MSDS) and compliance certificates, is available upon request for your engineering audit.

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Q1: What are the primary applications for this micro solenoid valve?

A: This micro solenoid valve is primarily used in eye massagers, medical devices (such as portable blood pressure monitors, rehabilitation equipment), beauty instruments, adult products, and other portable smart devices that demand strict requirements for size, weight, and pneumatic control precision.

Q2: Can this micro solenoid valve be used to control liquids?

A: The working medium for this micro solenoid valve is specifically air. It is not recommended for controlling liquids, as this may affect product performance and lifespan.