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$20.37

Noctua NF-R8-1800 80x80x25mm fan
[NF-R8-1800]

  • NF-R8-1800
  • NF-R8-1800
  • NF-R8-1800
  • Proven NF-R8 Design
  • Custom designed PWM IC with SCD
  • Low-Noise Adaptor
  • Extensive Cabling Options
  • SSO-Bearing
  • 6 years manufacturer’s warranty

Stock Status: Stock Available



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Sound-optimised blade geometry and profile: The NF-R8 is the first fan employing a novel 80mm rotor which was developed by the Austrian Institute for Heat-Transmission and Fan Technology (Österreichisches Institut für Wärmeübertragung und Ventilatorentechnik, ÖIWV). Thanks to the special optimisation of the blade geometry towards ultra low noise application, the NF-R8 is up to 10% more quiet than current high-end fans at the same flow rate.

Current silent fans frequently employ conventional blade geometries, which were developed for higher speed ranges and significantly lose efficiency at lower rotation speeds. The Noctua Raised-Blade-Design of the NF-R8 series was developed by the Austrian Institute for Heat-Transmission and Fan Technology (Österreichisches Institut für Wärmeübertragung und Ventilatorentechnik, ÖIWV) and specifically tailored to 80mm fans with extremely low rotation speeds. The result is a performance improvement of up to 10% compared to conventional blade geometries.

Both the angle of attack and the design of the blade area of the NF-R8 rotor are optimised for maximum airflow and minimum noise emission at speed ranges below 1800RPM. Raising the leading edge above the rotor hub and lowering the trailing edge below the bottom of the rotor hub results in an extended profile chord length, which compensates for the reduction in blade surface caused by the steeper angle of attack and hence increases the overall blade force. The continuous radial increase of the blade curvature towards the blade tips ensures sufficient static pressure despite of the slow rotation speeds. A significant reduction in noise emission is achieved through the rounding of the fan blades towards the rotor hub as well as the rounding of the rotor hub itself. This way, the NF-R8 is significantly more quiet than other high end silent fans at the same performance thanks to its specific optimisations for ultra low noise application.

Mag. Manfred Stadler MBA of the Austrian Institute for Heat-Transmission and Fan Technology (Österreichisches Institut für Wärmeübertragung und Ventilatorentechnik, ÖIWV) about the development of the Noctua Raised-Blade and Straight-Blade-Designs:

"In the area of PC cooling, the last years saw a growing demand for axial fans with the lowest possible noise emission, which manufacturers mostly met by simply reducing the RPM of existing models without sufficiently adapting the blade geometry and profile to the modified fluid dynamic parameters. The comparison of measured data and simulation outputs showed that the result was an average deficit of efficiency of 10-15%. The complete redevelopment of the blade geometry and profile was carried out with exact fluid mechanical adjustment to minimal noise emission in a speed range of 400-1800RPM at a height of 25mm and a radius of 40 and 60mm. Both fan blades possess 8-12% more flow rate than comparable products at the same total noise emission and static pressure." (Mag. Manfred Stadler MBA, Austrian Institute for Heat-Transmission and Fan Technology (Österreichisches Institut für Wärmeübertragung und Ventilatorentechnik, ÖIWV)) Self-stabilising oil-pressure bearing (SSO bearing): The NF-R8 series are equipped with a magnetically centred, self lubricating oil-pressure bearing that provides a new level of quietness and long-term stability.

Canard PC Hardware 01/2012 ReviewTechXpert.lt Reviewhwreviewlabs.com ReviewClunk.org.uk ReviewOverclockersHQ.com Review
Focused FlowProven NF-R8 Design
Tens of thousands of quiet cooling enthusiasts swear by Noctua’s classic NF-R8. Its impressive quietness, excellent performance and impeccable, time-tested quality made the R8 a default choice for 80mm quiet cooling.

LNALow-Noise Adaptor
The NF-R8 PWM is supplied with a Low-Noise Adaptor (L.N.A.) that reduces the maximum fan speed from 1800 to 1300rpm. The L.N.A can be used either to run the fan at a fixed speed of 1300rpm or to cap the maximum speed when using automatic PWM control.

Cabling OptionsExtensive Cabling Options
The fan’s short 20cm primary cable minimises cable clutter in typical applications while the supplied 30cm extension provides extended reach when necessary. Both cables are fully sleeved and a 4-pin y-cable allows to connect a second NF-R8 fan to the same PWM fan header for automatic control.

SSO-BearingSSO-Bearing
Combining the proven concept of hydrodynamic bearing with an additional magnet that supports the self-stabilisation of the rotor axis, Noctua’s time-tested SSO-Bearing technology has become synonymous with supremely quiet operation and exceptional long-term stability. button

Warranty6 years manufacturer’s warranty
Noctua fans are renowned for their impeccable quality and outstanding longevity. Like all Noctua fans, the NF-R8 PWM features an MTBF rating of more than 150.000 hours and comes with a full 6 years manufacturer’s warranty.

Canard PC Hardware 01/2012 ReviewTechXpert.lt Reviewhwreviewlabs.com ReviewClunk.org.uk ReviewOverclockersHQ.com Review
Size80x80x25 mm
BearingSSO-Bearing
Blade GeometryRaised-Blade-Design
Rotational Speed (+/- 10%)1800 RPM
Rotational Speed with L.N.A. (+/- 10%)1300 RPM
Rotational Speed with U.L.N.A. (+/- 10%)800 RPM
Airflow53 m³/h
Airflow with L.N.A.39 m³/h
Airflow with U.L.N.A.26 m³/h
Acoustical Noise17 dB(A)
Acoustical Noise with L.N.A.10 dB(A)
Acoustical Noise with U.L.N.A.7* dB(A)
Input Power1,32 W
Input Current0,11 A
Voltage Range4-13 V
MTBF> 150.000 h
Scope of Delivery
  • Ultra-Low-Noise Adaptor (U.L.N.A.)
  • Low-Noise Adaptor (L.N.A.)
  • 4 Vibration Compensators
  • 3:4-Pin Adaptor
  • 4 Fan Screws
Warranty6 years
Canard PC Hardware 01/2012 ReviewTechXpert.lt Reviewhwreviewlabs.com ReviewClunk.org.uk ReviewOverclockersHQ.com Review
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