The specification N35 is merely an indication of the magnetisation quality. The strength of a magnet depends on its shape and size as well as the respective magnetisation quality.
For magnets of the same size and shape, a higher magnetisation quality (indicated with NXX) means a higher adhesive force.
We mainly use N35 for our self-adhesive magnets. A weaker magnetisation is used for these magnets to prevent the adhesive force of the magnets from being stronger than the maximum force that the self-adhesive film can withstand.
In addition, N35 is very often used for screw-on magnets, as there is too great a risk of them breaking with higher magnetisation.
In order to achieve a good price-performance ratio, our flat grippers / pot magnets are also largely made of N35 neodymium magnets. Here, the force is greatly increased anyway due to the design, so that a very high holding force is also achieved.
You can find more magnets with a very specific magnetisation here: Magnets N40, Magnets N42, Magnets N45, Magnets N48, Magnets N52