Magnetic assemblies are consists of several materials, besides the magnet. It is usually combined with metal which will be much powerful than individual magnets. They are widely applied in industrial processing like construction, engineering, automotive, electronic and agricultural, etc. Magnet assemblies are used for mounting, lifting, holding, fixing and transferring objects, such as pot magnet, channel magnet, button magnet, hook magnet etc.
When selecting magnet assemblies, consider the environment in which the assembly will be used, like temperature. What is the holding force needed based on the size and weight of the parts involved and how will the assembly be secured, whether bolted, mounted, fastened or adhered? Also, consider the shape of the magnet desired (e.g. disc, ring, rectangle, etc.) and the size, including diameter, length, width and height. Knowing what variation in dimensions is allowed (tolerances) is important. Price and quantity are also considerations.
The alternative standard sizes of NdFeB Pot magnet
Copper Deep Pot Magnet
NPN0 |
 |
 |
Part No |
Dimensions(mm) |
Weight(g) |
Force(N) |
D |
H |
NPN0-6 |
6 |
20 |
4.5 |
10 |
NPN0-8 |
8 |
20 |
8 |
25 |
NPN0-10 |
10 |
20 |
12.5 |
45 |
NPN0-13 |
13 |
20 |
20 |
70 |
NPN0-16 |
16 |
20 |
32 |
150 |
NPN0-20 |
20 |
25 |
60 |
280 |
NPN0-25 |
25 |
35 |
135 |
450 |
NPN0-32 |
32 |
40 |
250 |
700 |
Copper Deep Pot Magnet With Threaded Hole
NPN1 |
 |
 |
Part No |
Dimensions(mm) |
Weight(g) |
Force(N) |
D |
H |
M |
NPN1-6 |
6 |
20 |
3 |
4 |
10 |
NPN1-8 |
8 |
20 |
3 |
7 |
25 |
NPN1-10 |
10 |
20 |
4 |
12 |
45 |
NPN1-13 |
13 |
20 |
4 |
20 |
70 |
NPN1-15 |
15 |
20 |
4 |
27 |
140 |
NPN1-16 |
16 |
20 |
4 |
30 |
150 |
NPN1-20 |
20 |
25 |
4 |
60 |
280 |
NPN1-25 |
25 |
35 |
5 |
135 |
450 |
NPN1-32 |
32 |
40 |
6 |
240 |
700 |
Outside Threaded Hole Pot Magnet
NPN2 |
 |
 |
Part No |
Dimensions(mm) |
Weight(g) |
Force(N) |
D |
H |
L |
d |
M |
NPN2-6 |
6 |
6 |
11.5 |
6 |
3 |
2.5 |
5 |
NPN2-8 |
8 |
4.5 |
11.5 |
6 |
3 |
3 |
13 |
NPN2-10 |
10 |
4.5 |
11.5 |
6 |
3 |
4 |
25 |
NPN2-13 |
13 |
4.5 |
11.5 |
6 |
3 |
6 |
60 |
NPN2-16 |
15 |
4.5 |
11.5 |
8 |
4 |
8 |
95 |
NPN2-20 |
16 |
6 |
13 |
8 |
4 |
17 |
140 |
NPN2-25 |
25 |
7 |
14 |
8 |
4 |
28 |
200 |
NPN2-32 |
32 |
7 |
15.5 |
10 |
5 |
45 |
350 |
NPN2-40 |
40 |
8.5 |
15.5 |
10 |
6 |
100 |
500 |
Normal Pot Magnet
NPN3 |
 |
 |
Part No |
Dimensions(mm) |
Weight(g) |
Force(N) |
D |
H |
NPN3-6 |
6 |
4.5 |
1 |
5 |
NPN3-8 |
8 |
4.5 |
1.5 |
13 |
NPN3-10 |
10 |
4.5 |
2.5 |
25 |
NPN3-13 |
13 |
4.5 |
4.5 |
60 |
NPN3-16 |
16 |
4.5 |
6.5 |
95 |
NPN3-20 |
20 |
6 |
15 |
140 |
NPN3-25 |
25 |
7 |
22 |
200 |
NPN3-32 |
32 |
7 |
40 |
350 |
NPN3-40 |
40 |
8.5 |
80 |
500 |
Screw Pot Magnet
NPN4 |
 |
 |
Part No |
Dimensions(mm) |
Weight(g) |
Force(N) |
D |
H |
L |
M |
NPN4-10 |
10 |
4.5 |
12.5 |
4 |
3 |
25 |
NPN4-13 |
13 |
4.5 |
12.5 |
5 |
5 |
60 |
NPN4-16 |
16 |
4.5 |
12.5 |
6 |
7.5 |
95 |
NPN4-20 |
20 |
6 |
16 |
6 |
16 |
140 |
NPN4-25 |
25 |
7 |
17 |
6 |
25 |
200 |
NPN4-32 |
32 |
7 |
17 |
6 |
48 |
350 |
NPN4-40 |
40 |
8.8 |
20 |
6 |
82 |
500 |
Ring Pot Magnet
NPN5 |
 |
 |
Part No |
Dimensions(mm) |
Weight(g) |
Force(N) |
D |
d1 |
d2 |
H |
NPN5-16 |
16 |
3.1 |
6.6 |
4.5 |
5 |
50 |
NPN5-20 |
20 |
3.1 |
6.6 |
4.5 |
10 |
80 |
NPN5-25 |
25 |
6 |
11.5 |
7 |
20 |
100 |
NPN5-32 |
32 |
6 |
11.5 |
8 |
35 |
200 |
NPN5-36 |
36 |
5 |
10.5 |
7.1 |
60 |
250 |
Countersunk Pot Magnet
NPN6 |
 |
 |
Part No |
Dimensions(mm) |
Weight(g) |
Force(N) |
D |
H |
d1 |
d2 |
NPN6-16 |
16 |
4.5 |
3.5 |
6.6 |
5.7 |
75 |
NPN6-20 |
20 |
6 |
4.5 |
9 |
12.5 |
105 |
NPN6-25 |
25 |
7 |
4.5 |
9 |
25 |
160 |
NPN6-32 |
32 |
7 |
5.5 |
11 |
38.5 |
310 |
Inside Threaded Hole Pot Magnet
NPN7 |
 |
 |
Part No |
Dimensions(mm) |
Weight(g) |
Force(N) |
D |
d |
H |
M |
NPN7-48 |
48 |
46 |
14 |
8 |
170 |
560 |
NPN7-50 |
50 |
47.5 |
14.5 |
8 |
195 |
560 |
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