From 25mm to 10mm: SANYO DENKI San Ace Thin Fans Enable Medical Equipment Miniaturization

With medical testing equipment continuously evolving toward smaller size, higher integration, and improved portability, internal installation space is becoming increasingly limited.

Traditional medical devices commonly use 60×60×25mm axial fans as the cooling solution. However, as equipment designs become more compact, manufacturers are facing new challenges:

• Reduced available installation space;
• Increasing heat density from integrated electronic modules;
• Stricter requirements for equipment thickness;
• Higher expectations for low noise and long-term reliability.

Under these conditions, how can a cooling fan become thinner while maintaining or even improving thermal performance?

SANYO DENKI San Ace provides a solution through its high-static-pressure thin fan technology, helping medical equipment manufacturers achieve compact designs without compromising cooling performance.

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1. Thermal Challenges Caused by Medical Equipment Miniaturization

Medical testing equipment usually features:

Applications such as:

• Blood analysis equipment;
• Biochemical analyzers;
• Laboratory testing instruments;
• Medical diagnostic devices;

often integrate multiple control boards, power modules, and sensing components inside a limited enclosure.

During continuous operation, these components generate heat. Insufficient thermal management may affect:

• Measurement accuracy;
• Component lifetime;
• Overall equipment stability.

Therefore, medical equipment fan selection cannot rely only on maximum airflow.

The actual cooling performance depends on the matching between:

Airflow, static pressure, and the actual operating point inside the system.

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2. Thermal Optimization Case Study for Medical Testing Equipment Manufacturer K

A medical equipment manufacturer, K Company, was developing a new generation of compact testing equipment.

The original cooling design used a:

60×60×25mm DC axial fan

However, due to internal structural optimization, more installation space was required for additional electronic modules.

The customer needed a solution that could:

The final target was:

Replacing the existing 60×60×25mm fan with a 60×60×10mm thin fan.

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3. Airflow Tester Verification and Performance Analysis

To verify whether a 60×60×10mm thin fan could replace the original 25mm fan, SANYO DENKI conducted airflow and pressure performance testing using an Airflow Tester system.

The evaluation included:

In real medical equipment applications, fans rarely operate at their maximum airflow point.

Internal structures such as:

• PCB obstacles;
• Filters;
• Heat sinks;
• Narrow air passages;

all create airflow resistance.

Therefore, actual thermal performance is determined by:

The intersection between the fan performance curve and the system impedance curve.

This is the true operating point of the cooling system.

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4. Comparison Between 60×60×25mm and 60×60×10mm Fans

To verify whether the thin fan could replace the traditional 25mm fan, two representative SANYO DENKI San Ace models were compared.

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Original Solution: 60×60×25mm DC Fan

Model:

9RA0612F4001

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Optimized Solution: 60×60×10mm Thin Fan

Model:

9GA0612H9001

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5. Advantages of Replacing 60×60×25mm Fan with 60×60×10mm Fan

5.1 Fan Thickness Reduced by 60%

For compact medical devices, reducing fan thickness by 15mm provides significant design advantages:

• More flexible internal layout;
• Additional space for electronic modules;
• Reduced equipment size.

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5.2 Static Pressure Increased by Approximately 95%

Although the fan thickness is reduced from 25mm to 10mm, the thin fan achieves higher static pressure performance.

This improvement is achieved through:

• Higher-speed motor design;
• Optimized impeller structure;
• Improved airflow channel design.

Higher static pressure allows the fan to overcome airflow resistance inside compact medical equipment.

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5.3 Airflow Maintained and Improved

Through advanced aerodynamic optimization, the 10mm thin fan not only reduces thickness but also maintains higher airflow performance.

This demonstrates that:

A 60×60×10mm thin fan is not simply a smaller fan.

It is a compact cooling solution optimized for higher airflow performance within limited installation space.

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6. SANYO DENKI San Ace 60×60×10mm Thin Fan Series Selection

Different medical equipment applications require different cooling performance levels.

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7. Thin Fan Selection Recommendations for Medical Equipment

High Heat Load and High Airflow Resistance Applications

Recommended model:

9GA0612G9001

Suitable for:

• High-density medical testing equipment;
• Systems with long airflow paths;
• Concentrated heat sources.

Features:

High static pressure performance for overcoming complex airflow resistance.

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General Medical Testing Equipment

Recommended model:

9GA0612H9001

Suitable for:

• Laboratory analyzers;
• Medical testing instruments;
• Compact diagnostic equipment.

Features:

Balanced performance between airflow, static pressure, and reliability.

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Noise-Sensitive Medical Applications

Recommended model:

9GA0612L9001

Suitable for:

• Desktop medical equipment;
• Office and laboratory environments.

Features:

Low power consumption and quiet operation.

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8. SANYO DENKI San Ace Supports Advanced Medical Cooling Design

Thermal design for medical equipment is not simply about selecting a fan with the right dimensions.

A reliable cooling solution requires comprehensive consideration of:

• Airflow requirements;
• Static pressure requirements;
• System impedance;
• Operating point matching;
• Long-term reliability.

SANYO DENKI San Ace has extensive experience supporting high-reliability applications including:

• Medical equipment;
• Industrial automation systems;
• Communication equipment;
• Semiconductor manufacturing equipment.

Through professional testing and technical support, San Ace helps customers optimize cooling structures and improve equipment reliability.

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Conclusion

As medical equipment continues to become smaller, lighter, and more integrated, traditional 25mm-thick fans may limit mechanical design flexibility.

Through airflow and pressure testing verification, 60×60×10mm thin fans can successfully replace 60×60×25mm fans while providing:

• 60% reduction in fan thickness;
• Higher static pressure capability;
• Maintained or improved airflow performance;
• Reliable long-term cooling operation.

SANYO DENKI San Ace thin fans provide medical equipment manufacturers with a compact, efficient, and reliable thermal management solution for next-generation medical devices.

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