Large-Volume DC Blower for Industrial Ventilation Systems
The SZR 12032 DC blower fan is engineered for high-capacity cooling applications where conventional compact fans cannot provide sufficient airflow pressure. Featuring a large centrifugal impeller and wide air outlet structure, this model is capable of delivering concentrated airflow for large electrical systems and industrial ventilation assemblies.
Its high-pressure airflow characteristics allow efficient heat dissipation in enclosed environments with complex airflow resistance, making it suitable for energy systems, industrial electronics and heavy-duty ventilation equipment.

Product Construction
The fan frame and impeller are manufactured using UL94V-0 certified flame-retardant engineering plastic for enhanced thermal resistance and operational safety.
The aerodynamic impeller blades are optimized to improve airflow efficiency while controlling operating noise under high-load conditions. A reinforced motor support structure helps maintain rotational stability and minimizes deformation during continuous operation.
To satisfy different industrial environments, the 12032 supports:
- Sleeve bearing configuration for cost-sensitive projects
- Dual ball bearing configuration for long-life industrial systems
Its large outlet area improves airflow concentration and supports efficient heat extraction from dense electronic assemblies.
Technical Specifications
| Parameter |
12032 DC Blower Fan |
| Dimensions | 120×120×32 mm |
| Rated Voltage | 12V / 24V / 48V DC |
| Operating Voltage Range | 6.0–13.5V / 18–26.5V / 36–54V |
| Speed Range | 2500–3300 RPM |
| Air Flow | 25.11–29.02 CFM |
| Static Pressure | 20.4–35.4 mmH₂O |
| Noise Level | 50.6–59.8 dB(A) |
| Bearing Type |
Sleeve / Ball Bearing |
| Housing Material | UL94V-0 Thermoplastic |
| Weight | 219.7 g |
| Wiring |
Red (+) / Black (-) |
| Certifications | CE / RoHS |
Performance Features

• Strong airflow performance for large cooling systems
• High static pressure for ducted or enclosed ventilation
• Durable motor structure for industrial continuous operation
• Optimized blade design improves thermal efficiency
• Supports multiple DC voltage platforms
• Flexible OEM customization available
Recommended Applications
• Energy storage systems
• Industrial inverter cooling
• Large electrical control cabinets
• Commercial ventilation equipment
• Charging station thermal management
• Factory automation systems
• High-power electronic equipment
Customer Support Questions
Q: What makes the 12032 suitable for industrial equipment?
A: Its large impeller structure provides both high airflow volume and strong air pressure, allowing efficient cooling in high-resistance environments.
Q: Can this blower operate in elevated temperatures?
A: Ball bearing versions are designed for demanding industrial conditions and extended operating durations.
Q: Does SZR support PWM speed control?
A: Yes. PWM control, FG signal output and customized electrical configurations are available upon request.
Q: Are customized mounting solutions supported?
A: SZR provides OEM/ODM engineering support including mounting modifications and connector customization.

Manufacturing & Quality Assurance
SZR implements strict production and inspection procedures for every blower fan series. Each 12032 blower undergoes airflow testing, voltage verification, acoustic inspection and operational reliability evaluation before shipment. Customized cooling solutions are available for industrial automation, energy equipment and large-scale commercial projects.
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