Need directed airflow through a tight, restricted duct - without noise or cost blowing up your design? The SZR9733 DC blower is exactly that component: a 97 × 94 × 33 mm brushless centrifugal fan built for volume OEM programs.
Verified Specifications
Source: SZR's official export listing (Alibaba, www.szrfan.com).
Parameter Specification
|
Parameter |
Specification |
|
Dimensions |
97 × 94 × 33 mm |
|
Voltage |
12V / 24V / 48V DC |
|
Speed |
2,000 – 4,500 RPM |
|
Current |
0.15 – 0.68 A |
|
Noise |
~54 dBA |
|
Bearing |
Ball bearing (long life) |
|
Housing |
UL94V-0 flame-retardant plastic |
|
Mounting |
Screw mounting |
|
Certifications |
CE, UL, RoHS, ISO9001 |
|
Price |
US$2.42 – 3.02 (MOQ 200) |
|
Customization |
OEM / ODM / OBM |
Why Engineers Pick It
•Centrifugal = pressure. The 33 mm squirrel-cage geometry pushes airthrough resistance - filters, heat sinks, long ducts - where a flat-blowing axial fan stalls.
•Ball bearing + 54 dBA. Rated for continuous duty and horizontal mounting, quieter than high-RPM blowers twice its price.
•Under 9 W at full speed. Runs off any standard 12/24/48 V DC bus.
•UL94V-0 + full cert stack. Clears the flame and compliance requirements for appliances, EV-adjacent, and industrial builds.
Where It's Actually Used
•Equipment enclosures and control cabinets · 3D printer cooling · car seat ventilation retrofits · air purifiers and medical devices · charging cabinets and power electronics · BBQ air injection and inflatables.
Real Demand Signal
•Exact per-listing click counts aren't publicly auditable, but the buying evidence is clear: the SZR9733 is stocked across major export channels (Alibaba, www.szrfan.com) with continuously refreshed 2026 listings.
Bottom Line
•A certified, ball-bearing, quiet-running 97 mm blower at MOQ 200 - the SZR9733 gives design engineers low risk and procurement teams low cost. Request the P-Q curve when quoting, and spec dual-ball in writing for continuous-duty builds.
