N45 NdFeB Ring Magnet D9mm*3.37mm*4.5mm

Specification of N45 NdFeB Ring Magnet D9mm*3.37mm*4.5mm
Texture of material	N45
Remanence br	1.354T 13.54KGs
Coercivity HCB	983.7 kA/m 12.36kOe
Intrinsic coercivity Hcj	1004 kA/m 12.62kOe
Maximum magnetic energy product (BH) max	44.28MGOe
Size	Diameter 9mm * thickness 3.37mm – mesopore 4.5mm
Tolerance	The diameter is ± 0.05mm and the thickness is ± 0.1mm
Coating	Nickel copper nickel
Magnetization direction	Axial magnetization
Surface magnetic field	3800GS
Pull	0.48kg
Working temperature	The maximum working temperature is 80 ℃
Single weight	1.4g

Properties of N45

PROPERTIES:	BR	BR	HCB	HCB	HCJ	HCJ	BHMAX	BHMAX	REV. TEMP. COEF.	REV. TEMP. COEF.	TEMP.
Grade	Typical mT	Typical gauss	min kA/m	min oersteds	min kA/m	min oersteds	Typical kJ/m3	Typical MGOe	Br %/°C	HcJ %/°C	max °C
N30	1105	11,050	796	10,000	955	12,000	235	30	-0.12	-0.75	80
N33	1150	11,500	836	10,500	955	12,000	259	33	-0.12	-0.75	80
N35	1210	12,100	860	10,800	955	12,000	283	35	-0.12	-0.75	80
N38	1260	12,600	860	10,800	955	12,000	306	38	-0.12	-0.75	80
N40	1285	12,850	923	11,600	955	12,000	318	40	-0.12	-0.75	80
N42	1315	13,150	860	10,800	955	12,000	334	42	-0.12	-0.75	80
N45	1350	13,500	860	10,800	955	12,000	350	44	-0.12	-0.75	80
N48	1400	14,000	836	10,500	955	12,000	390	49	-0.12	-0.75	80
N50	1425	14,250	836	10,500	955	12,000	390	49	-0.12	-0.75	80
N52	1450	14,500	836	10,500	876	11,000	406	51	-0.12	-0.75	60
N55	1490	14,900	716	9,000	876	11,000	430	54	-0.12	-0.75	60
N33M	1175	11,750	836	10,500	1114	14,000	267	34	-0.12	-0.675	100
N35M	1210	12,100	868	10,900	1114	14,000	283	35	-0.12	-0.675	100
N38M	1260	12,600	899	11,300	1114	14,000	307	39	-0.12	-0.675	100
N40M	1285	12,850	923	11,600	1114	14,000	322	40	-0.12	-0.675	100
N42M	1315	13,150	955	12,000	1114	14,000	338	42	-0.12	-0.675	100
N45M	1350	13,500	971	12,200	1114	14,000	354	44	-0.12	-0.675	100
N48M	1395	13,950	995	12,500	1114	14,000	378	48	-0.12	-0.675	100
N50M	1415	14,150	1035	13,000	1114	14,000	390	49	-0.12	-0.675	100
N52M	1445	14,450	995	12,500	1035	13,000	406	51	-0.12	-0.675	100
N30H	1105	11,050	796	10,000	1353	17,000	235	30	-0.12	-0.605	120
N33H	1175	11,750	836	10,500	1353	17,000	267	34	-0.12	-0.605	120
N35H	1210	12,100	868	10,900	1353	17,000	283	35	-0.12	-0.605	120
N38H	1260	12,600	899	11,300	1353	17,000	307	39	-0.12	-0.605	120
N40H	1285	12,850	923	11,600	1353	17,000	322	40	-0.12	-0.605	120
N42H	1300	13,000	955	12,000	1353	17,000	330	41	-0.12	-0.605	120
N45H	1350	13,500	971	12,200	1353	17,000	354	44	-0.12	-0.605	120
N48H	1390	13,900	1011	12,700	1353	17,000	378	48	-0.12	-0.605	120
N50H	1415	14,150	1035	13,000	1274	16,000	390	49	-0.12	-0.605	120
N30SH	1125	11,250	811	10,200	1592	20,000	243	31	-0.12	-0.535	150
N33SH	1175	11,750	844	10,600	1592	20,000	267	34	-0.12	-0.535	150
N35SH	1210	12,100	876	11,000	1592	20,000	283	35	-0.12	-0.535	150
N38SH	1260	12,600	907	11,400	1592	20,000	307	39	-0.12	-0.535	150
N40SH	1285	12,850	939	11,800	1592	20,000	322	40	-0.12	-0.535	150
N42SH	1310	13,100	955	12,000	1592	20,000	330	41	-0.12	-0.535	150
N45SH	1350	13,500	979	12,300	1592	20,000	354	44	-0.12	-0.535	150
N48SH	1390	13,900	995	12,500	1512	19,000	374	47	-0.12	-0.535	150
N28UH	1075	10,750	764	9,600	1990	25,000	227	29	-0.12	-0.465	180
N30UH	1125	11,250	812	10,200	1990	25,000	243	31	-0.12	-0.465	180
N33UH	1175	11,750	852	10,700	1990	25,000	267	34	-0.12	-0.465	180
N35UH	1210	12,100	860	10,080	1990	25,000	283	35	-0.12	-0.465	180
N38UH	1260	12,600	876	11,000	1990	25,000	307	39	-0.12	-0.465	180
N40UH	1285	12,850	915	11,500	1990	25,000	318	40	-0.12	-0.465	180
N42UH	1310	13,100	955	12,000	1990	25,000	330	41	-0.12	-0.465	180
N45UH	1350	13,500	955	12,500	1910	24,000	358	45	-0.12	-0.465	180
N28EH	1085	10,850	780	9,800	2388	30,000	227	29	-0.12	-0.42	200
N30EH	1125	11,250	812	10,200	2388	30,000	243	31	-0.12	-0.42	200
N33EH	1165	11,650	820	10,300	2388	30,000	267	34	-0.12	-0.42	200
N35EH	1200	12,000	836	10,500	2388	30,000	279	35	-0.12	-0.42	200
N38EH	1235	12,350	899	11,300	2388	30,000	303	38	-0.12	-0.42	200
N40EH	1270	12,700	915	11,500	2388	30,000	314	39	-0.12	-0.42	200
N42EH	1310	13,100	971	12,200	2308	29,000	326	41	-0.12	-0.42	200
N28AH	1075	10,750	780	9,800	2706	34,000	223	28	-0.12	-0.393	220
N30AH	1120	11,200	812	10,200	2706	34,000	239	30	-0.12	-0.393	220
N33AH	1140	11,400	812	10,200	2706	34,000	231	29	-0.12	-0.393	220
N35AH	1195	11,950	883	11,100	2706	34,000	275	35	-0.12	-0.393	220
N38AH	1240	12,400	923	11,600	2626	33,000	299	38	-0.12	-0.393	220

Dimension tolerance and sizes of magnets

Sizes that can be made for neodymium magnets dimension tolerance

Standard products	Outer diameter D,OD	Internal diameter ID	Length L	Width W	Height H
< 5mm	±0.1mm	±0.1mm	±0.1mm	±0.1mm	±0.1mm
< 10mm	±0.1mm	±0.1mm	±0.1mm	±0.1mm	±0.1mm
< 20mm	±0.1mm	±0.1mm	±0.1mm	±0.1mm	±0.1mm
< 50mm	±0.1mm	±0.1mm	±0.1mm	±0.1mm	±0.1mm
<100mm	±0.15mm	±0.15mm	±0.15mm	±0.15mm	±0.15mm
>100mm	±0.2mm	±0.2mm	±0.2mm	±0.2mm	±0.2mm

Custom-made products	Outer diameter D,OD	Internal diameter ID	Length L	Width W	Height H
< 5mm	±0.05mm	±0.05mm	±0.05mm	±0.05mm	±0.05mm
< 10mm	±0.05mm	±0.05mm	±0.05mm	±0.05mm	±0.05mm
< 20mm	±0.05mm	±0.05mm	±0.05mm	±0.05mm	±0.05mm

If the tolerance is designated for a custom-made magnet, the above precision is required.

Ferrite magnets dimension tolera:

• All shapes ±2%

Sizes that can be made for neodymium magnets

The sizes that can be made will depend on the grade of the material. Currently, the maximum length possible is 150mm. Due to facility restrictions, it may not be possible to make large items that use materials other than N35.

Discs/Rods	D Diameter	H Height,T Thickness	Direction of magnetization
Maximum	200mm	30mm	Height H,Diameter D
Minimum	1mm	0.5mm	Height H,Diameter D

Rings	OD Outer diameter	ID Internal diameter	H Height,T Thickness	Direction of magnetization
Minimum 1	200mm	180mm	40mm	Height H
Maximum 2	90mm	70mm	80mm	Diameter D
Minimum	3mm	1mm	1mm	Height H,Diameter D

Squares	L Length	W Width	H Height,T Thickness	Direction of magnetization
Maximum1	245mm	80mm	40mm	Height H
Maximum2	150mm	100mm	44mm	Height H
Minimum	1mm	1mm	1mm	Height H

Sizes that can be made for samarium cobalt magnets

The sizes that can be made will depend on the grade of the material. Currently, the maximum length possible is 150mm.

Discs/Rods	D Diameter	H Height,T Thickness	Direction of magnetization
Maximum	100mm	100mm	Height H,Diameter D
Minimum	1mm	0.5mm	Height H,Diameter D

Rings	OD Outer diameter	ID Internal diameter	H Height,T Thickness	Direction of magnetization
Maximum	100mm	80mm	60mm	Height H,Diameter D
Minimum	1.2mm	0.5mm	0.5mm	Height H,Diameter D

Squares	L Length	W Width	H Height,T Thickness	Direction of magnetization
Maximum	200mm	100mm	120mm	Height H
Minimum	1mm	1mm	0.5mm	Height H

Sizes that can be made for ferrite magnets

Discs/Rods	D Diameter	H Height,T Thickness	Direction of magnetization
Maximum	181mm	5mm-29mm	Height H
Minimum	6mm	2mm	Height H,Diameter D

Rings	OD Outer diameter	ID Internal diameter	H Height,T Thickness	Direction of magnetization
Maximum	400mm	240mm	5mm-25mm	Height H
Minimum	18mm	1.4mm	3mm	Height H,Diameter D

Squares	L Length	W Width	H Height,T Thickness	Direction of magnetization
Maximum	6″(152.4mm)	4″(101.6mm)	1″(25.4mm)	Height H
Minimum	2mm	2mm	2mm	Height H

China NdFeB Ring Magnets Manufacturer www.rizinia.com supplies N45 NdFeB ring magnets, block countersunk magnets, arc countersunk magnets for scientific experiments or for industrial applications.

This product is not a toy and is not to be used by children. This product is to be used for scientific experiments or for industrial applications. This product contains strong Neodymium magnet(s) that can be harmful or fatal if swallowed. Strong Neodymium magnets are fragile, they are brittle and will break or chip if they hit a hard surface or are snagged together. Always use the utmost care when handling Neodymium magnets.