Are you a fan of tan? Noctua's new Sterrox lineup

Subject: Cases and Cooling | July 3, 2018 - 03:08 PM |
Tagged: sterrox, noctua, NF-P12 redux, NF-A12

One of these two new fans from Noctua are constructed of Sterrox, which we have seen a fair amount of advertising for recently.  According to the PR, the new material should allow for tighter spacing between the fan blades and the frame of the fan; these feature a minuscule 0.5mm of clearance compared to the common gap of 1.5-3mm.   The Guru of 3D pulled out their anemometer to see if this design has any effect on airflow and in the case of the NF-A12, how the PWM, FLX and ultra low noise adapters change performance and acoustics.  Take a look through the full review to get your answers.

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"Especially our fans and your fans, a review on that new Sterrox based Noctua fan. Well, that and many more newly released ones. Noctua recently released new Sterrox manufactured 120mm fans in a wide range of configurations. The NF-A12 series, however, has been a fan series they worked on for four years! In this group test, we'll put nine recent Noctua fans to the test, and compared them in cooling performance, noise levels and airflow."

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Source: Guru of 3D

Seven brown new fans from Noctua

Subject: Cases and Cooling | May 2, 2018 - 02:45 PM |
Tagged: sfma1, noctua, NF-P12 redux, NF-A12x25

Noctua have released seven new fans across three product lines, the NF-A12x25 family, the NF-P12 redux family and a single NA-SFMA1.   The naming scheme helps you determine what their function is, the PWM models for fan controllers, ULN are the ultra low noise fans and the FLX allow you to choose between two adapters to balance your cooling and noise levels.

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These new fans are built from Sterrox liquid-crystal polymer to add strength and stability to the fans even at high speeds and rotation as well as Noctua's self-stabilizing oil-pressure bearings.  The NF-A12x25 series are designed to be able to provide enough static pressure to be effectively used on radiators when paired with the SFMA1 adapter, as well as being used as an air cooler.  Those with sensitive ears should look to the NF-P12 redux series with three models rotating at 1700, 1300 or 900RPM, ranging from 25.1 dB(A) down to 12,6 dB(A).

The NF-A12x25 will retail for $29.90US, the NF-P12 redux for $13.90 and the NA-SFMA1for $11.90.  Check out the full PR below.

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Vienna, May 2nd 2018 – Noctua today presented its much-anticipated next-generation 120x25mm A-series fan and the complementary NA-SFMA1 adaptors that allow it to be used on 140mm based watercoolers. The new NF-A12x25 is the first fan made of Noctua’s novel Sterrox® LCP material and integrates the company’s latest innovations in aerodynamic engineering in order to achieve an unprecedented level of quiet cooling performance. While the NF-A12x25 becomes the new flagship model in the 120mm range, the classic NF-P12 will be reissued in the streamlined, more affordable redux line.

“The NF-A12x25 is our most advanced fan today. We’ve spent more than 4.5 years developing it and it’s been easily the most thorny, intricate development project we’ve completed so far,” explains Lars Strömbäck (Noctua CTO): “In order to achieve our goal of surpassing our renowned NF-F12 and NF-S12A, we went for a completely different approach and had to use a tip clearance of only 0.5mm, which poses various new difficulties in manufacturing.”

Whereas the award-winning NF-F12 and NF-S12A are specialised solutions that are either optimised for maximum static pressure or maximum airflow, the new NF-A12x25 follows the approach of Noctua’s A-series in being a true all-rounder that yields superb results in all types of usage, regardless of whether it’s in low-impedance, airflow-oriented applications such as case cooling, or high-impedance, pressure-demanding scenarios such as on heatsinks and watercooling radiators. In practice, the NF-A12x25 not only outperforms the renowned NF-F12 on 120mm based watercooling radiators, but combined with the new, optional NA-SFMA1 adaptor frames, it also offers better efficiency than many 140mm fans on 140mm based systems.

One of the cornerstones of the NF-A12x25’s next-generation performance is its record tight tip clearance (distance between the blade tips and the inside of the frame) of only 0.5mm. This highly ambitious design helps the NF-A12x25 to work more efficiently against back pressure, such as on heatsinks or radiators, by reducing leak flows through the gap between impeller and frame. Manufacturing a fan with such a small tip clearance is extremely delicate and was only made possible by Noctua’s new Sterrox® liquid-crystal polymer (LCP) material, which features extreme tensile strength, an exceptionally low thermal expansion coefficient and excellent dimensional stability.

“We have never put so much research and effort into a single fan so far, both on the level of fine-tuning the aerodynamic construction and on the level of materials and manufacturing,” says Roland Mossig (Noctua CEO): “Many challenges had to be overcome, but now we’re proud with the end result and confident that the NF-A12x25 will become a new benchmark for premium-quality quiet 120mm fans.”

The NF-A12x25 will be available in a 4-pin PWM version for automatic speed control, 3-pin FLX version with Low-Noise Adaptors for three different speed settings as well as a near-silent 3-pin ULN (Ultra-Low-Noise) version. As the NF-A12x25 becomes the new flagship model in Noctua’s 120mm range, the classic NF-P12 moves to the streamlined, more affordable redux line. It will henceforth be available in 1700 and 1300rpm 4-pin PWM versions as well as 1300 and 900rpm 3-pin versions.

 

Source: Noctua