https://www.geeknetic.es/Noticia/38473/Los-ventiladores-negros-de-Noctua-no-son-solo-estetica-asi-afectan-los-pigmentos-a-su-fabricacion.html
The Austrian manufacturer of CPU fans and heatsinks, which will also soon add liquid cooling, is known for its characteristic fan color beige and brown. Hated by many and acclaimed by others, this color is a distinctive feature of the company, but it has also thought about users who prefer a more standard color with its series. Chromax.black. Now Noctua has explained why this black series arrives several months after its fans in the brand’s usual colors.
Noctua explains why its Chromax.black fans arrive later than classic models
And, although it may seem like it, the version chromax.black is not a simple color change to black, and these fans require the independent tool validation for parts that are manufactured with the method of injection.
Black pigments affect the manufacturing process and fan tolerances
Tolerances for high-end models Noctua are minimal when this injection manufacturing method is used, and a minimal change in the materials can affect the determining factors for these tolerances such as the blade size and stability. A problem if the separation between the frame and the fan is expressed in tenths of a millimeter.
Although it may seem strange, the black pigments used for the series chromax.black They behave differently than the usual beige and brown ones. The compound used for the black color, based on smoke, has smaller particles and can affect the goo of the material used for the injection, as well as the crystallization during the molding process.
Up to 6 months delay (or more) due to validation and production adjustments
To obtain real values for the manufacture of the black color, Noctua uses the values of the pieces in their characteristic colors and thus calculate those of the series chromax.black. Furthermore, the process of validation It also takes time, since for this black series the manufacturer requires the same tests as the beige and brown pieces.
If all goes well, the delay may be “only” 6 monthsbut if additional adjustments have to be made to the molds or a validation test must be repeated, this delay can extend to double.
Noctua has taken the opportunity to announce that the launch of the ventilator NF-A12X25 G2 in its chromax.black version is about to fall. This has only taken a little more 10 months since its launch at the end of June 2025.
