Enhanced Thermal Management for Medium-Power Equipment

The SZR 75mm DC blower series is designed for systems requiring a combination of compact dimensions and strong airflow performance. The centrifugal airflow structure allows efficient heat removal from enclosed equipment where axial fans may struggle to overcome airflow resistance.

With reinforced housing construction and optimized rotor balancing, the series maintains stable operation during high-speed cooling tasks.

Engineering Design

The blower housing utilizes high-strength flame-retardant thermoplastic material to ensure structural rigidity during continuous operation.

Advanced centrifugal impeller engineering improves airflow concentration while minimizing mechanical vibration. The deeper 7525 and 7530 models provide higher airflow output and stronger air pressure capability for demanding cooling conditions.

Motor components are optimized for smooth startup performance and consistent rotational stability.

Product Specifications

Specification	7515	7525	7530
Frame Size	75×75×15 mm	75×75×25 mm	75×75×30 mm
Voltage	5V / 12V / 24V DC	5V / 12V / 24V DC	5V / 12V / 24V DC
Startup Voltage	3.2V / 9V / 12V	Same	Same
Speed Range	2500–4200 RPM	Higher	Higher
Air Flow	5.7–9.5 CFM	Increased	Increased
Static Pressure	9.1–29.3 mmH₂O	Enhanced	Enhanced
Noise Range	29.7–47.2 dB(A)	Moderate	Moderate
Weight	60 g	Approx. 75 g	Approx. 82 g
Bearing	Sleeve / Ball Bearing	Sleeve / Ball Bearing	Sleeve / Ball Bearing
Compliance	CE / RoHS	CE / RoHS	CE / RoHS