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ODM Sintered Strong Neodymium Bar Magnets With N35 Grade Low Brittleness

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ODM Sintered Strong Neodymium Bar Magnets With N35 Grade Low Brittleness

MOQ:	100pcs
Price:	As negotiation
Standard Packaging:	cartons,pallets
Delivery Period:	20-25days
Payment Method:	T/T L/C
Supply Capacity:	100 tons per month for NdFeB magnet

Detail Information

Product Description

Detail Information

Place of Origin

Made In China

Brand Name

UNMAG

Applications:

Wide Range

Brittleness:

Low

Coating:

Nickel

Corrosion Resistance:

Good

Magnetic Strength:

High

Material:

Neodymium

Max Operating Temperature:

80°C

Pull Force:

High

Quality:

High

Resistance To Demagnetization:

High

Shape:

Sintered

Highlight:

Sintered Strong Neodymium Bar Magnets

ODM Strong Neodymium Bar Magnets

N35 industrial bar magnets

Product Description

ODM Sintered Strong Neodymium Bar Magnets With N35 Grade Low Brittleness

Product Attributes

Attribute	Value
Applications	Wide Range
Brittleness	Low
Coating	Nickel
Corrosion Resistance	Good
Magnetic Strength	High
Material	Neodymium
Max Operating Temperature	80°C
Pull Force	High
Quality	High
Resistance to Demagnetization	High
Shape	Sintered

Product Description

Introduction

Neodymium Iron Boron (NdFeB) or Neodymium magnets are extremely strong for their size. Available in various shapes including rings, blocks, discs and custom configurations. To prevent oxidation, these magnets are typically finished with zinc, nickel or epoxy coatings.

Manufacturing process involves melting the elements together and milling into powder that is dry-pressed to shape in a magnetic field. The material is then sintered, ground to precise dimensions, magnetized and thoroughly tested. Classified as "rare earth" magnets due to neodymium's placement in the lanthanides section of the Periodic Table.

Physical Properties of Sintered Neodymium Magnet

Parameter Name	Parameter Values	Unit
Curie Temperature	310～380	℃
Relative Recoil Permeability	1.02～1.05
Reversible Temperature Coefficient of Br (20~100℃)	-0.09～-0.13	%/℃
Reversible Temperature Coefficient of Hcj (20~100℃)	-0.4～-0.7	%/℃
Density	7.50～7.70	g/cm3
Vickers Hardness	550～700
Bending Strength	-0.09～-0.13	MPa
Tensile Strength	≥80	MPa
Compressive Strength	800 ~1050	MPa
Electric Resistivity	150	μΩ*cm
Thermal Conductivity	8～10	W/(M*℃)
Coefficient of Thermal Expansion (Parallel to the orientation)	5	10-6/K
Coefficient of Thermal Expansion (vertical to the orientation)	-1.5	10-6/K
Young's Modulus	150～200	GPa
Specific Heat(20℃～320℃)	3.0～4.6	J/(g*k)
weight loss(low weight loss products)	≤2	mg/cm2

Magnetic Properties of Sintered Neodymium Magnet

Grade	Remanence (Br)	Coercivity (HcB)	Intrinsic Coercivity (HcJ)	Max Energy Product (BH)max	Working Temp (Tw)
N Series
N35	11.7-12.2	≥10.9	≥12	33-36	≤80
N38	12.2-12.5	≥11.3	≥12	36-39	≤80
N40	12.5-12.8	≥11.4	≥12	38-41	≤80
N42	12.8-13.2	≥11.5	≥12	40-43	≤80
N45	13.2-13.8	≥11.6	≥12	43-46	≤80
N48	13.8-14.2	≥11.6	≥12	46-49	≤80
N50	14.0-14.5	≥10.0	≥11	48-51	≤60
N52	14.3-14.8	≥10.0	≥11	50-53	≤60

Maximum Working Temperature by Grade

Grade	Working Temp (℃)
N Series (N35~N52)	≤80
M Series (38M~50M)	≤100
H Series (35H~48H)	≤120
SH Series (33SH~48SH)	≤150
UH Series (30UH~40UH)	≤180
EH Series (30EH~38EH)	≤200

Manufacturing Process

Mixing the ingredients
Dissolving the mixture at high temperature to prepare an alloy
Turning the alloy into fine powder
Molding in a magnetic field to align magnetization directions
Sintering at ~1,100℃ followed by heat treatment at ~600℃
Precision machining to final product shape
Surface treatment for rustproofing
Magnetization by applying a strong magnetic field

Applications

Ideal for applications requiring high magnetic force in compact spaces. Common uses include:

Medical equipment
Magnetic separators
Linear actuators
Microphone assemblies
Servo motors and DC motors (including automotive starters)
Computer hard disk drives
Printers and speakers

Tolerance Control

Name	Dimension(mm)	Tolerance(mm)
Wall thickness	T≤10	±0.04
	10<T≤30	±0.05
	30<T≤50	±0.06
Length	L≤10	±0.04
	10<L≤30	±0.05
	30<T≤50	±0.05
Length (continued)	L>50	±0.08
Width	W>50	±0.05
Width (continued)	W≥50	±0.08

Available size range: L≤200mm, W≤100mm, T: 1.5~50mm, H3~60mm

Coating Properties & Environmental Applications

Coating Material	Colour	Properties	Environment of Application	Thickness
Zinc	Blue, Black and rainbow etc	Compact, Stable and Homogeneous	With reasonable capability of anticorrosion	6um≤∮≤12
Nickel-Copper-Nickel	White and black	Light and Stable	Suitable for higher corrosive environment	15μm≤∮≤30pm
Phosphorization	Colorless or light gray	Uniform thickness	Short-term anticorrosion	-
Epoxy	Black and Gray	Layer with certain luster, insurability	Suitable for higher corrosive environment	≥15μm
Parylene	Transparency	Uniform thickness, density pinholes-free and insurability	Excellent capability of anticorrosion especially for small items	0.1μm≤∮≤100pm
Ni+Cu+Epoxy	Black	Layer with certain luster	Excellent capability of anticorrosion. Suitable for hostile environment (salt spray resistance>300hr)	10-30μm
Al+Epoxy	Black	Layer with certain luster	Excellent capability of anticorrosion. Suitable for hostile environment (salt spray resistance>650hr). Widely used in new energy auto magnets	15-35μm

Tags:

Products

MOQ:	100pcs
Price:	As negotiation
Standard Packaging:	cartons,pallets
Delivery Period:	20-25days
Payment Method:	T/T L/C
Supply Capacity:	100 tons per month for NdFeB magnet

Detail Information

Product Description

Detail Information

Place of Origin

Made In China

Brand Name

UNMAG

Applications:

Wide Range

Brittleness:

Low

Coating:

Nickel

Corrosion Resistance:

Good

Magnetic Strength:

High

Material:

Neodymium

Max Operating Temperature:

80°C

Pull Force:

High

Quality:

High

Resistance To Demagnetization:

High

Shape:

Sintered

Minimum Order Quantity:

100pcs

Price:

As negotiation

Packaging Details:

cartons,pallets

Delivery Time:

20-25days

Payment Terms:

T/T L/C

Supply Ability:

100 tons per month for NdFeB magnet

Highlight

Sintered Strong Neodymium Bar Magnets

ODM Strong Neodymium Bar Magnets

N35 industrial bar magnets

Product Description

ODM Sintered Strong Neodymium Bar Magnets With N35 Grade Low Brittleness

Product Attributes

Attribute	Value
Applications	Wide Range
Brittleness	Low
Coating	Nickel
Corrosion Resistance	Good
Magnetic Strength	High
Material	Neodymium
Max Operating Temperature	80°C
Pull Force	High
Quality	High
Resistance to Demagnetization	High
Shape	Sintered

Product Description

Introduction

Physical Properties of Sintered Neodymium Magnet

Parameter Name	Parameter Values	Unit
Curie Temperature	310～380	℃
Relative Recoil Permeability	1.02～1.05
Reversible Temperature Coefficient of Br (20~100℃)	-0.09～-0.13	%/℃
Reversible Temperature Coefficient of Hcj (20~100℃)	-0.4～-0.7	%/℃
Density	7.50～7.70	g/cm3
Vickers Hardness	550～700
Bending Strength	-0.09～-0.13	MPa
Tensile Strength	≥80	MPa
Compressive Strength	800 ~1050	MPa
Electric Resistivity	150	μΩ*cm
Thermal Conductivity	8～10	W/(M*℃)
Coefficient of Thermal Expansion (Parallel to the orientation)	5	10-6/K
Coefficient of Thermal Expansion (vertical to the orientation)	-1.5	10-6/K
Young's Modulus	150～200	GPa
Specific Heat(20℃～320℃)	3.0～4.6	J/(g*k)
weight loss(low weight loss products)	≤2	mg/cm2

Magnetic Properties of Sintered Neodymium Magnet

Grade	Remanence (Br)	Coercivity (HcB)	Intrinsic Coercivity (HcJ)	Max Energy Product (BH)max	Working Temp (Tw)
N Series
N35	11.7-12.2	≥10.9	≥12	33-36	≤80
N38	12.2-12.5	≥11.3	≥12	36-39	≤80
N40	12.5-12.8	≥11.4	≥12	38-41	≤80
N42	12.8-13.2	≥11.5	≥12	40-43	≤80
N45	13.2-13.8	≥11.6	≥12	43-46	≤80
N48	13.8-14.2	≥11.6	≥12	46-49	≤80
N50	14.0-14.5	≥10.0	≥11	48-51	≤60
N52	14.3-14.8	≥10.0	≥11	50-53	≤60

Maximum Working Temperature by Grade

Grade	Working Temp (℃)
N Series (N35~N52)	≤80
M Series (38M~50M)	≤100
H Series (35H~48H)	≤120
SH Series (33SH~48SH)	≤150
UH Series (30UH~40UH)	≤180
EH Series (30EH~38EH)	≤200

Manufacturing Process

Mixing the ingredients
Dissolving the mixture at high temperature to prepare an alloy
Turning the alloy into fine powder
Molding in a magnetic field to align magnetization directions
Sintering at ~1,100℃ followed by heat treatment at ~600℃
Precision machining to final product shape
Surface treatment for rustproofing
Magnetization by applying a strong magnetic field

Applications

Ideal for applications requiring high magnetic force in compact spaces. Common uses include:

Medical equipment
Magnetic separators
Linear actuators
Microphone assemblies
Servo motors and DC motors (including automotive starters)
Computer hard disk drives
Printers and speakers

Tolerance Control

Name	Dimension(mm)	Tolerance(mm)
Wall thickness	T≤10	±0.04
	10<T≤30	±0.05
	30<T≤50	±0.06
Length	L≤10	±0.04
	10<L≤30	±0.05
	30<T≤50	±0.05
Length (continued)	L>50	±0.08
Width	W>50	±0.05
Width (continued)	W≥50	±0.08

Available size range: L≤200mm, W≤100mm, T: 1.5~50mm, H3~60mm

Coating Properties & Environmental Applications

Coating Material	Colour	Properties	Environment of Application	Thickness
Zinc	Blue, Black and rainbow etc	Compact, Stable and Homogeneous	With reasonable capability of anticorrosion	6um≤∮≤12
Nickel-Copper-Nickel	White and black	Light and Stable	Suitable for higher corrosive environment	15μm≤∮≤30pm
Phosphorization	Colorless or light gray	Uniform thickness	Short-term anticorrosion	-
Epoxy	Black and Gray	Layer with certain luster, insurability	Suitable for higher corrosive environment	≥15μm
Parylene	Transparency	Uniform thickness, density pinholes-free and insurability	Excellent capability of anticorrosion especially for small items	0.1μm≤∮≤100pm
Ni+Cu+Epoxy	Black	Layer with certain luster	Excellent capability of anticorrosion. Suitable for hostile environment (salt spray resistance>300hr)	10-30μm
Al+Epoxy	Black	Layer with certain luster	Excellent capability of anticorrosion. Suitable for hostile environment (salt spray resistance>650hr). Widely used in new energy auto magnets	15-35μm

Tags:

NdFeB Neodymium Magnets

Round Neodymium Magnets

Bar Neodymium Magnets

Arc Neodymium Magnet

Sintered Neodymium Magnet

Bonded Neodymium Magnet

Neodymium Pot Magnet

Samarium Cobalt Magnet

Alnico Magnet

Ceramic Ferrite Magnet

Neodymium Hook Magnet

Eyebolt Magnet

Rubber Coated Magnet

ODM Sintered Strong Neodymium Bar Magnets With N35 Grade Low Brittleness

Sintered Strong Neodymium Bar Magnets

ODM Strong Neodymium Bar Magnets

N35 industrial bar magnets

rare earth bar magnets,

industrial bar magnets,

NdFeB Neodymium Magnets

Round Neodymium Magnets

Bar Neodymium Magnets

Arc Neodymium Magnet

Sintered Neodymium Magnet

Bonded Neodymium Magnet

Neodymium Pot Magnet

Samarium Cobalt Magnet

Alnico Magnet

Ceramic Ferrite Magnet

Neodymium Hook Magnet

Eyebolt Magnet

Rubber Coated Magnet

Sintered Strong Neodymium Bar Magnets

ODM Strong Neodymium Bar Magnets

N35 industrial bar magnets

rare earth bar magnets,

industrial bar magnets,