Cooling fan

Cooling fan Custom cooling fan solutions for OEM and industrial applications. Axial fans, blowers, replacements, and application-specific designs.

Engineering support from sample to production.

02/09/2026

❄️ -45°C. That's -49°F.

For context, that's colder than a typical home freezer by more than 2x.

We put our fan through it anyway.

No hesitation.
No seizing.
No failure.

This is what "rated for extreme environments" actually means. Not a number on a spec sheet, but a fan that keeps spinning when everything else stops.

Outdoor telecom gear, cold-chain logistics, industrial equipment in northern climates... this is the performance you need when it counts.

📩 [email protected]
🌐 www.cnmegatech.com

Ever wonder why two fans that look identical on paper perform totally differently in real life?It usually comes down to ...
01/09/2026

Ever wonder why two fans that look identical on paper perform totally differently in real life?

It usually comes down to ONE overlooked part: the bearing.

There are 3 main types, and each one changes how your fan performs:

🔹 Sleeve Bearing
Budget-friendly and quiet... but doesn't love being mounted vertically, and wears out faster with continuous use.

🔹 Ball Bearing
Built for tough conditions - handles heat, speed, and any mounting angle. Just a bit noisier.

🔹 Hydraulic Bearing
The best of both worlds. Nearly as quiet as sleeve, with a lifespan that gets close to ball. (Just give it a few minutes to "warm up" after power-on!)

Picking the wrong one is one of the most common - and most avoidable - reasons a fan fails way before it should.

So how do you choose?

It comes down to 3 questions:
✅ How will it be mounted?
✅ Is it running non-stop or on/off?
✅ How much does noise matter?

We break it all down (with real examples) in our latest blog 👇

Read the full guide here: https://cnmegatech.com/Axial-Fan/blog-sleeve-vs-ball-vs-hydraulic-bearing-fan-guide/

Same 25 x 25 x 7mm frame. Four completely different fans, depending on what you actually need.At 7,000 RPM: 1.22 CFM, 19...
29/08/2026

Same 25 x 25 x 7mm frame. Four completely different fans, depending on what you actually need.

At 7,000 RPM: 1.22 CFM, 19.6 dB-A. Quiet, low output.

At 10,000 RPM: 1.55 CFM, 23.5 dB-A.

At 14,000 RPM: 1.90 CFM, 26.4 dB-A.

At 17,000 RPM: 2.81 CFM, 31.2 dB-A. More than double the airflow of the lowest tier - and noticeably louder.

More RPM means more air, but it also means more noise.

There's no single "right" answer here - it depends on whether the application cares more about airflow or acoustics.

Same footprint either way, so swapping between tiers doesn't mean redesigning anything else.

📩 [email protected]
🌐 www.cnmegatech.com

Same fan. Same output. Three completely different current draws.12V pulls 0.26A.24V pulls 0.13A.48V pulls 0.065A.All thr...
28/08/2026

Same fan. Same output. Three completely different current draws.

12V pulls 0.26A.

24V pulls 0.13A.

48V pulls 0.065A.

All three land on identical numbers:

4,000 RPM

40.1 CFM

4.41mmH2O

Nothing about the airflow changes. What changes is how much current your system has to supply to get there.

If you're working with tight power budgets, thin gauge wiring, or long cable runs - this is the kind of detail that decides whether 12V is fine, or whether you're better off stepping up to 24V or 48V.

Same fan on paper. Different fan for your design, depending on the voltage rail you're working with.

📩 [email protected]
🌐 www.cnmegatech.com

666 CFM.Out of a Ø175 x 69mm B-Type DC centrifugal fan.Up to 5,700 RPM. Up to 102.1mmH2O of static pressure. Runs on 24V...
27/08/2026

666 CFM.

Out of a Ø175 x 69mm B-Type DC centrifugal fan.

Up to 5,700 RPM. Up to 102.1mmH2O of static pressure. Runs on 24V or 48V.

This is a centrifugal build, so it's not just about volume - it's about pushing that airflow through resistance. Ducts, filters, tight enclosures. Places an axial fan would stall out and a blower like this keeps working.

Built for high-output applications that need pressure and volume, not just one or the other.

Full specs available on request.

📩 [email protected]
🌐 www.cnmegatech.com

15 x 15 x 4mm.Smaller than a fingernail, and still hitting up to 20,000 RPM.This micro DC brushless fan runs on 3.3V or ...
26/08/2026

15 x 15 x 4mm.

Smaller than a fingernail, and still hitting up to 20,000 RPM.

This micro DC brushless fan runs on 3.3V or 5V, moving up to 0.12 CFM at up to 2.00mmH2O.

Numbers that small don't sound impressive until you realize what they're being asked to fit into - wearables, micro electronics, anything where space isn't measured in inches, it's measured in millimeters.

When there's barely room for the fan itself, every spec has to earn its place.

Full details available on request.

📩 [email protected]
🌐 www.cnmegatech.com

Up to 292.4 CFM.Out of a 120 x 120 x 38mm frame.Our F-Type high-airflow DC brushless fan is built for applications that ...
26/08/2026

Up to 292.4 CFM.

Out of a 120 x 120 x 38mm frame.

Our F-Type high-airflow DC brushless fan is built for applications that need serious volume - up to 11,000 RPM and up to 155.6mmH2O of static pressure.

Runs on 12V, 24V, or 48V, depending on your setup.

This is the fan you reach for when "high airflow" is the requirement, not a nice-to-have.

Full specs available on request.

📩 [email protected]
🌐 www.cnmegatech.com

22,000 RPM out of a 40mm frame.That's a fan the size of a matchbox.Spinning fast enough to move real air in spaces most ...
22/08/2026

22,000 RPM out of a 40mm frame.

That's a fan the size of a matchbox.

Spinning fast enough to move real air in spaces most cooling solutions can't even fit into.

40 x 40 x 28mm. DC brushless.

Built for the applications where every millimeter is already spoken for, and airflow still isn't optional.

Dense electronics. Compact enclosures. High-performance equipment running hot in a small footprint.

Small frame. Serious output.

Full specs available on request.

📩 [email protected]
🌐 www.cnmegatech.com

15mm to 200mm.On one end, a fan smaller than a coin, spinning up to 20,000 RPM. On the other, a 200x200x60mm unit moving...
21/08/2026

15mm to 200mm.

On one end, a fan smaller than a coin, spinning up to 20,000 RPM. On the other, a 200x200x60mm unit moving up to 645.61 CFM.

Same category. Completely different jobs.

The small one goes where space is the whole constraint - tight electronics, compact devices, anywhere a standard fan just won't fit. The large one goes where volume is the point - equipment, enclosures, anything that needs serious air moved fast.

Most people only think about fans at one end of that range.
We build for both.

Full specs available on request.

📩 [email protected]
🌐 www.cnmegatech.com

A cooling fan... inside a headlight?Yes, really. Modern headlights aren't just bulbs anymore - many pack in LEDs, driver...
20/08/2026

A cooling fan... inside a headlight?

Yes, really. Modern headlights aren't just bulbs anymore - many pack in LEDs, drivers, and control electronics for things like adaptive lighting, all generating heat in a very small, sealed space.

The fix: a 20 x 20 x 6mm DC brushless fan, small enough to disappear into the housing, running 8,000-12,000 RPM at 5V or 12V.

It's a good reminder that "cooling application" doesn't always mean a big industrial cabinet or a server rack. Sometimes it's a component the size of a coin, doing its job where you'd never think to look.

This one's from our application data and DC fan catalogue, available on request.

📩 [email protected]
🌐 www.cnmegatech.com

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