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Your partner for magnetic solution & high quality magnet
Into Newland Magnets & Solution News Customer service Quality Control Contact

Tel:

+86 0574-87502822

Phone:

+86 13805852715

 

Email:

Sales16@neomax.cn

 

Add:

No. 411, Yindong North Rd, Yinzhou District, Ningbo, Zhejiang, China

 

Home Magnets Hot-pressed ring

Hot-pressed ring

Trade Terms :

EXW, FOB Ningbo, Door to door

 

Place of Origin :

Ningbo City, Zhejiang Province, China

 

Certificate :

IATF16949, ISO9001:2015

 

Payment Terms :

T/T

 

Delivery Time:

7-20 working days for making sample, 20 to 50 working days for production it depends on the mass quantities

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Characteristics PROPERTIES Product introduction
Characteristics

The weight loss of the hot pressed magnetic ring is far less than 1mg/cm2, which has excellent anti weight loss characteristics.

The hot pressed magnetic ring can be prepared into a radiation ring with smaller diameter and higher performance.

 

Why Choose Hot pressed magnetic ring?

 

*Chemical Composition: Nd2Fe14B

  Neodymium magnets are hard, brittle and easily corrode.

 

*Moderate Temperature Stability

  Neodymium magnets lose -0.09~-0.13% of Br/℃. Their working stability is under 80℃ for low Hcj Neodymium magnets and above 200℃ for high Hcj Neodymium magnets.

 

*Excellent Strength Value

  With the decrease of the diameter, the performance of the hot pressed magnetic ring does not decay.
As the diameter of sintered magnetic ring decreases, the orientation magnetic field decays rapidly, so the performance decreases a lot

 

*Effective Surface Treatment to Prevent Corrosion

  Surface treatments have been developed that allow them to be used in most applications. The treatments include gold, nickel, zinc and tin plating and epoxy resin coating.

PROPERTIES

MAGNETIC CHARACTERISTICS AND PHYSICAL PROPERTIES OF SINTERED Nd-Fe-B

 

        PROPERTIES   


   GRADE

 BrmT
(KGs)		 Hcb KA/m
(Koe)		 Hcj KA/m
(KOe)		 (BH)max KJ/m³
(MGOe)		 TW ℃
45M 1330-1370
(13.3-13.7)		 ≥954
(≥12.0)		 ≥1273
(≥15)		 318-366
(40-46)		 ≤100
42M 1290-1320
(12.9-13.2)		 ≥939
(≥12.9)		 ≥1273
(≥15)		 302-342
(38-43)		 ≤100
50H 1400-1460
(14.0-14.6)		 ≥1066
(≥13.4)		 ≥1353
(≥17)		 374-410
(46-51)		 ≤120
48H 1350-1400
(13.5-14.0)		 ≥1042
(≥13.1)		 ≥1353
(≥17)		 342-366
(43-46)		 ≤120
42H 1280-1320
(12.8-13.2)		 ≥955
(≥12.0)		 ≥1353
(≥17)		 318-342
(40-43)		 ≤120
45H 1330-1370
(13.3-13.7)		 ≥995
(≥12.5)		 ≥1353
(≥17)		 342-366
(43-46)		 ≤120
33SH 1130-1180
(11.3-11.8)		 ≥836
(≥10.5)		 ≥1592
(≥20)		 247-272
(31-34)		 ≤150
35SH 1180-1220
(11.8-12.2)		 ≥876
(≥11.0)		 ≥1592
(≥20)		 263-287
(33-36)		 ≤150
38SH 1230-1250
(12.3-12.5)		 ≥884
(≥11.1)		 ≥1592
(≥20)		 287-311
(36-39)		 ≤150
40SH 1250-1280
(12.5-12.8)		 ≥916
(≥11.5)		 ≥1592
(≥20)		 302-326
(38-41)		 ≤150
42SH 1280-1320
(12.8-13.2)		 ≥939
(≥11.8)		 ≥1592
(≥20)		 318-342
(40-43)		 ≤150
45SH 1330-1370
(13.3-13.7)		 ≥939
(≥11.8)		 ≥1592
(≥20)		 342-366
(43-46)		 ≤150
30UH 1080-1130
(10.8-11.3)		 ≥756
(≥9.5)		 ≥1990
(≥25)		 223-247
(28-31)		 ≤180
33UH 1130-1180
(11.3-11.8)		 ≥820
(≥10.3)		 ≥1990
(≥25)		 247-271
(31-34)		 ≤180
35UH 1180-1220
(11.8-12.2)		 ≥844
(≥10.6)		 ≥1990
(≥25)		 263-287
(33-36)		 ≤180
38UH 1230-1250
(12.3-12.5)		 ≥884
(≥11.1)		 ≥1990
(≥25)		 287-311
(36-39)		 ≤180
40UH 1240-1280
(12.4-12.8)		 ≥912
(≥11.5)		 ≥1990
(≥25)		 302-326
(38-41)		 ≤180

 

REMARKS:

※ The above-mentioned data of magnetic parameters and physical properties are given at room temperature.

※ The maximum service temperature of magnet is changeable due to the ratio length and diameter and environmental factors.

※ Density: 7.4~7.6g/cm³; αBr: -0.09~-0.13%/℃; αHcj: -0.50~-0.80%/℃ ; Hardness: Hv 600 ;

Product introduction

Planar octupole magnetization

Radiation octupole magnetization

 

 

Dimensional and machining tolerances

Dimension（mm） min max
ID/OD 0.7 0.9
Length 0.5 50
OD 8 60
ID 6 46

 

Machining tolerance OD（mm） ID(mm) Length(mm) Concentricity（mm） Circularity（mm）
After processing ±0.01 ±0.01 ±0.01 0.03 0.01
After electroplating ±0.02 ±0.02 ±0.01 0.03 0.01

 

Coating

Epoxy
Ni/Ni-Cu-Ni/Ni-Cu-Ni+Cr
Zn/Sn
Passivation
Everlube
Teflon
Nano Al