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Bonded Rare Earth Permanent Magnets
Application: It can be used in micromotor, instrument
and meter， precision clocks elements,
magnetic therapy apparatus, etc.
Magnetic performances:
Material/performances
Br(Gs)
Hcb(Oe)
(BH)max (MGOe)
Max Operation Temperature (℃)
Reversible Temperature Coefficient (%/℃)
Bonded NdFeB(HDDR POWDER)
≥
5000
≥
4000
5
∽
6
100
-0.15
Bonded NdFeB(MQ POWDEER)
≥
7000
≥
5000
8
∽
10
100
-0.15
specifications:
Outer Diameter (D)
Inner Diameter(d)
Height(H)
Ratio ofH/D
Dimension
ф2∽ф15
ф0.5∽ф10
0.5
∽
10
0.1
∽
2.0
Tolerance
ф2∽ф8
ф8∽ф15 ±0.3%
ф0.5∽ф2.0 ±0.01mm
ф2.0∽ф4.0 ±0.5%
≥ф4.0 ±1%
±
0.5
Sintered NdFeB Rare Earth Permanent Magnets
Applications: It can be used in various permanent motors, magnetic therapy apparatus,
instruments, magnetic seals, , mag- netic chucks, magnetic lifting
machinery, magnetic oil- saving devices, magnetic switches and
flowmeters, etc.
Magnetic physical characteristics:
Type
Maximal
operating temperature (
℃
)
Remanence
(Br)/Gs
Coercivity
(Hcb)/KOe
Intrinsic Coercivity(Hcj)/KOe
Maximal Energy Product(BH)max/MGOe
N30
≤
80
10.8
∽
11.2
9.8
∽
10.6
≥12
30
N33
≤
80
11.4
∽
11.7
10.3
∽
11.1
≥12
33
N35
≤
80
11.7
∽
12.1
10.8
∽
11.6
≥12
35
N38
≤
80
12.2
∽
12.6
10.8
∽
11.6
≥12
38
N40
≤
80
12.6
∽
12.9
10.5
∽
11.1
≥12
40
N42
≤
80
12.7
∽
13.1
10.5
∽
11.1
≥12
42
N45
≤
80
13.2
∽
13.7
11.0
∽
11.7
≥12
46
N72H
≤
120
10.2
∽
10.7
9.3
∽
10.1
≥17
27
N30H
≤
120
10.8
∽
11.2
9.8
∽
10.6
≥17
30
N33H
≤
120
11.4
∽
11.7
10.3
∽
11.2
≥17
33
N35H
≤
120
11.7
∽
12.1
10.8
∽
11.6
≥17
35
N38H
≤
120
12.2
∽
12.6
11.5
∽
12.1
≥17
38
N40H
≤
120
12.6
∽
12.9
11.5
∽
12.1
≥17
42
N27SH
≤
150
10.2
∽
10.7
9.3
∽
10.1
≥20
27
N30SH
≤
150
10.8
∽
11.3
9.8
∽
10.6
≥20
30
N33SH
≤
150
11.4
∽
11.8
10.3
∽
11.0
≥20
33
N35SH
≤
150
11.7
∽
12.2
10.8
∽
11.6
≥20
35
N38SH
≤
150
12.2
∽
12.7
10.9
∽
11.7
≥20
39
N25UH
≤
180
9.8
∽
10.3
9.2
∽
9.8
≥25
25
N28UH
≤
180
10.4
∽
10.9
9.8
∽
10.3
≥25
28
N30UH
≤
180
10.8
∽
11.1
9.8
∽
10.3
≥25
31
N33UH
≤
180
11.3
∽
11.8
10.1
∽
10.6
≥25
34
Address: Guangzhou Magnetic Material Factory
8 Renjizhi, Longdaowei,Henan, Guangzhou, P.R. China
Tel
： 0086-2084449638、2034384803、2034382143
Fax
： 0086-2084414242
Hotline
：0086-2034382143
、13902228009
E-mail:Khimag@public.guangzhou.gd.cn
E-mail:
gzmagnet9638@sina.com
http://www.gzmagnets.com
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