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Aluminum 120mm Fan

L

Lazien

Member
I read on some forums that fans made of aluminum are much quieter than plastic because of the reduced vibration noise. But they couldn't show any measured results or reviews.
I can't help but wonder how much quieter is much quieter. Has anyone read a review of some good aluminum fans that can link it please?


Lazien
 
Originally posted by: Lazien

If You find them cheaper than $18 each post it here please. 56cfm at 23dbA is too good to be true I think.

Lazien
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where can you find them for $18? the cheapest i can fine is $20.

 
$10 Evercool fan

79.14CFM, 36dB.


I have 4 of these things used across two cases, and I like them. The noise you hear is that of air moving - I can't hear any bearing noise from them.

I wouldn't call them quiet, though they are definitely not really loud. If you want them to be quiet, get yourself a nice fan controller. You can still get a lot of airflow out of them at lower voltages.
I like Sunbeam's controller though the LEDs are overdriven, making them exceptionally bright. After a few months though, their brightness declines, probably from mild damage due to the overvolting.
It's easy to unplug or replace them though, as they are socketed in place, not soldered.
 
Does anyone remember those TMD (tip magnetic driving) fans released by YS-Tech? That sounded like a great idea and all but I dont see anywere to buy them. I guess they sucked lol
 
AL as a fan material doesn?t make any sense, it's not going to be any quieter, just more expensive.

Here are some 120mm fans I can recommend: Yate Loon, Panaflo, Delta.

The TMD fans did work, they moved more air then a conventional fan of the same size but not without tradeoffs. They tended to be rather unbalanced so noise was always a problem. I think the largest they got was 70mm; I imagine the bigger you scale the design the more balance becomes a problem.
 
Originally posted by: Operandi
AL as a fan material doesn?t make any sense, it's not going to be any quieter, just more expensive.

Here are some 120mm fans I can recommend: Yate Loon, Panaflo, Delta.

The TMD fans did work, they moved more air then a conventional fan of the same size but not without tradeoffs. They tended to be rather unbalanced so noise was always a problem. I think the largest they got was 70mm; I imagine the bigger you scale the design the more balance becomes a problem.
Click to expand...

The TMD moved just a bit more air. The problem with that concept was that there isn't much of a need to have fan blades extend to the center of the hub like in that design as they became so small that they barely moved air in the center portion. Shrouds and such are much better at eliminating deadspots. There was also the size issues, as 70mm simply isn't a standard size like 60/80/92/120 are. Furthermore there was electrical isolation issues that required mounting the fan on some sort of insulator due to the motor being contained in the frame.

Overall, the concept would be sound if they could get larger blades at the center somehow and fix the little issues that popped up. But for better or worse, the standard DC fan design looks like it's going to stay for quite some time.
 
i have a 70mm tmd fan. it sounds like a turbine spining up when its turned on. It sounds nice at first but then it quickly gets annoying. It does blow a hefty amount of air but I'll stick with my yate loons and panaflos thank you very much.
 
Ok now I see what happened to them 🙂 When I first read about them I thought it was a great idea, now I dont think so 🙂

Thanks guys


Lazien
 
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