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Permanent AlNiCo Rod Magnets Alnico 5 / LNG40 / LNG37 / LNG44

Material:Cast alnico magnet
Grade: Alnico 5 / LNG40 / LNG37 / LNG44
Size:customized
Magnetism direction: Customzied Specific Requirements
Tolerance: +/-0.05mm
Application: alarm application

Quantity:
  • DunBen
Cast Alnico Magnets Key Advantages:

  High density and magnetic properties, good capacity,

Excellent temperature stability and strong corrosion resistance,

Temperature factor of Br is the smallest among all the permanent magnets.

The maximum working temperaturer is up to 500 ºC .


Suitable for large volume and regular shape magnets.


Shorter production lead time. 

Size Specifications: 

Diameter (MM) Thickness/Height/Length (MM)
1.5-3.0 1.0-25.0
3.0-5.0 1.0-102.0
5.0-30.0 1.0-300.0
30.0-50.0 3.0-300.0
50.0-100.0 5.0-300.0
100.0-260.0 20.0-400.0

 We have many “standard” size cut pieces available from stock. Please email your enquiry and we will do our best to match your required size to one of our standard part numbers.We supply first-class permanent magnetic products.

Performance of Cast AlNiCo Magnets

Grade Br
KGs (Mt)
Hcj
Oe (KA/m)
Bhmax
MGOe(KJ/m3)
D
g/cm3
MMPA
Class
α %/°C
Br (Hcj)
TC.
°C
TW. 
°C
LNG37 12.0(1200) 600 (48) 4.65 (37.0) 7.3 Alnico5 -0.02(+0.03) 860 525
LNG40 12.5(1250) 600 (48) 5.00 (40.0) 7.3 Alnico5 -0.02(+0.03) 860 525
LNG44 12.5(1250) 650 (52) 5.50 (44.0) 7.3 Alnico5 -0.02(+0.03) 860 525
LNG48 12.5(1250) 650 (52) 6.00 (48.0) 7.3 Alnico5DG -0.02(+0.03) 860 525

Material Item NdFeB SmCo AlNiCo Ferrite
Magnetic Energy 30-52 MGOe           16-32 MGOe 1.2-10 MGOe 1-3.5 MGOe           
Max Working Temp. 80-200°C 350°C 550°C 250°C
Production Method Sintered Sintered Cast or Sintered Sintered
Surface Coating Yes No No No
Machining Property Middle Low Middle Low
Cost High High Middle Low
Main Application Motor, Speaker, 
Meter, Sensor, 
MRI, Separator, 
etc.
Aviation, 
Spaceflight, 
Motor, Sensor, 
Medical instrument, 
etc.
Sensor, 
Musical instrument, 
Speaker, Meter, 
Motor, etc.
Motor, Speaker,    
Toy, Craft, e

Cast Alnico Process Chart
Raw material -> forming- >smelting-> heat treatment-> surface treatment->precision grinding->inspection ->packing
重传alnico process flow



CONTACT US

  Hang Zhou XiaoShan Dunben Magnet  Co., Ltd 
 1702, Unit 2, Building 1, Dacheng Mingzuo, Shiixn Road, Xiaoshan, Hangzhou, Zhejiang, China
  86-571-82750965 
  86-571-82751287
 wang@dbmagnet.com
 

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