Neodymium pot magnet Ø 40 mm with countersunk hole, holds approx. 52 kg

Item number	CSN-40
Strength	approx. 52 kg
Displacement force	approx. 10 kg
Unit of Sale	1 piece

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Examples of use
Data sheet

Price and rebate
	1 pc.	10,06 EUR ea.
from	3 pcs.	9,02 EUR ea.
from	10 pcs.	8,10 EUR ea.
from	20 pcs.	7,64 EUR ea.
from	40 pcs.	7,24 EUR ea.
Ask for a rebate from 350 pcs.
incl. VAT plus shipping

10,06 EUR

incl. VAT plus shipping

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Description

Top seller: More than 810 000 sold!
This magnet in a steel pot has a countersunk hole and can be fastened with a countersunk screw. It is especially popular with our customers in the mechanical engineering and construction industry, in electrical engineering, the advertising industry and precision technologies. But it is also often used in private households.

Neodymium magnets are brittle and can break under excessive application of force. Therefore, we recommend a maximum tightening torque of 2 Nm when fastening this magnet.

The following screws fit into the CSN-40, for example:

Slotted countersunk wood screws: DIN 97 (5 mm)
Cross recessed countersunk flat head screws (machine screw): ISO 7046-2 M5 (5 mm)
Hexalobular socket countersunk flat head screws (machine screw): ISO 14581 M5 (5 mm)
Hexagon socket countersunk flat head screws (machine screw): ISO 10642 M5 (5 mm)

Please note: The full adhesive force is achieved when the ferromagnetic counterpart is smooth and of sufficient thickness and when the pot magnet makes direct and full flush contact. Pot magnets already lose much of their adhesive force at a distance of only half a millimetre to the ferromagnetic surface. This characteristic is more pronounced in pot magnets than in other ferrite and neodymium magnets. You can find additional fascinating information on our FAQ page about pot magnet features.

Technical data

Article ID	CSN-40
EAN	7640155431637
Material	NdFeB
Pot diameter D	40 mm
Total height H	8 mm
Hole d1	5,5 mm
Countersinking d2	11,7 mm
Countersinking t	3,1 mm
Tolerance	+/- 0,1 mm
Coating	Nickel-plated (Ni-Cu-Ni)
Steel	Q235 (China)
Magnetisation	N38
Strength	approx. 52 kg (approx. 510 N)
Displacement force	approx. 10 kg (approx. 101 N )
Max. working temperature	80°C
Colour	Silver-coloured
Shape	Disc
Design	With countersunk hole
Weight	65 g
PDF data sheet

Additional features and tips

The graph shows the maximum adhesive force in kg (y axis) at various distances in mm (x axis) between pot magnet and counterpart (steel plate).
Example: At a 2 mm distance between pot magnet and steel plate the maximum adhesive force is still around 10 kg.

The answer to why you can arrange pot magnets only side by side can be found under our FAQ.

The structure of pot magnets

Pot magnets have a neodymium or ferrite magnet built into a steel pot. When it comes into direct contact with a surface, its force will be focused on the holding surface as a result. This increases the adhesive force of the magnet. For more information, please refer to our FAQ page on the characteristics of pot magnets.