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SmCo Ring Magnets

The maxmium diameter of these Samarium Cobalt Ring Magnets can up to 120mm.

Product Details

SmCo Ring Magnets are mainly include metal material: Samarium and Cobalts Metals.The thin thickness disc or thin wall ring magnets can be obtained by choicing SmCo5 magnets.

The maxmium diameter of these Samarium Cobalt Magnets can up to 120mm.Different dimensions available with different coating.Of course, they always do not need coating because SmCo magnets are high resistant.Axially Magnetized or Diametrically Magnetized can be done according to customer's requirement.

Small Quantities Samples can be supplied with Affordable price to support customer. if you need stronger ring magnets, maybe can choice Neodymium Ring Magnets, but its max working temperture is lower than SmCo ring magnets.

SmCo Ring Magnets Dimension tolerance for reference .

Dimension Range(mm)	Cylindricity(mm)	Tolerance(mm)	Parallelism(mm)
1≤d≤3	±0.04	±0.04	±0.04
3≤d≤5	±0.04	±0.04	±0.04
5≤d≤15	±0.05	±0.05	±0.05
d>15	±0.1	±0.05	±0.1

Magnetic Properties List of Samarium Cobalt ring magnet

Material	Grade	B_r		H_cb		H_cj		(BH)_max		T_c	T_w	α（B_r）	β（H_cj)
Material	Grade	T	KGs	KA/m	KOe	KA/m	KOe	KJ/m³	MGOe	℃	℃	－%/℃	－%/℃
SmCO5 Sm₂Co₁₇	XGS16L	0.81-0.85	8.1-8.5	517-669	6.5-8.4	636-955	8--12	111-127	14-16	800	250	0.020	0.20
	XGS18L	0.85-0.90	8.5-9.0	525-708	6.6-8.9	636-955	8--12	127-143	16-18	800	250	0.020	0.20
	XGS20L	0.90-0.94	9.0-9.4	533-732	6.7-9.2	636-955	8--12	143-159	18-20	800	250	0.020	0.20
	XGS22L	0.94-0.97	9.4-9.7	533-740	6.7-9.3	636-955	8--12	159-175	20-22	800	250	0.020	0.20
	XGS24L	0.97-1.02	9.7-10.2	541-756	6.8-9.5	636-955	8--12	175-191	22-24	800	250	0.030	0.20
	XGS26L	1.02-1.05	10.2-10.5	541-764	6.8-9.6	636-955	8--12	191-207	24-26	800	250	0.030	0.20
	XGS28L	1.05-1.08	10.5-10.8	541-780	6.8-9.8	636-955	8--12	207-223	26-28	800	250	0.035	0.20
	XGS30L	1.08-1.11	10.8-11.1	541-796	6.8-10.0	636-955	8--12	223-239	28-30	800	250	0.035	0.20
	XGS32L-A	1.11-1.13	11.1-11.3	549-804	6.9-10.1	636-955	8--12	239-246	30-31	800	250	0.035	0.22
	XGS32L-B	1.13-1.15	11.3-11.5	550-805	6.9-10.1	636-955	8--12	246-255	31-32	800	250	0.040	0.25
	XGS33L	1.15-1.17	11.5-11.7	558-815	7.0-10.2	636-955	8--12	246-262	31-33	800	250	0.045	0.25
	XGS16M	0.81-0.85	8.1-8.5	573-669	7.2-8.4	955-1433	12--18	111-127	14-16	800	300	0.020	0.20
	XGS18M	0.85-0.90	8.5-9.0	605-708	7.6-8.9	955-1433	12--18	127-143	16-18	800	300	0.020	0.20
	XGS20M	0.90-0.94	9.0-9.4	637-732	8.0-9.2	955-1433	12--18	143-159	18-20	800	300	0.020	0.20
	XGS22M	0.94-0.97	9.4-9.7	645-740	8.1-9.3	955-1433	12--18	159-175	20-22	800	300	0.020	0.20
	XGS24M	0.97-1.02	9.7-10.2	661-764	8.3-9.6	955-1433	12--18	175-191	22-24	800	300	0.030	0.20
	XGS26M	1.02-1.05	10.2-10.5	685-788	8.6-9.9	955-1433	12--18	191-207	24-26	800	300	0.030	0.20
	XGS28M	1.05-1.08	10.5-10.8	693-812	8.7-10.2	955-1433	12--18	207-223	26-28	800	300	0.035	0.20
	XGS30M	1.08-1.11	10.8-11.1	700-828	8.8-10.4	955-1433	12--18	223-239	28-30	800	300	0.035	0.20
	XGS32M-A	1.11-1.13	11.1-11.3	708-852	8.9-10.7	955-1433	12--18	239-246	30-31	800	300	0.035	0.22
	XGS32M-B	1.13-1.15	11.3-11.5	716-860	9.0-10.8	955-1433	12--18	246-255	31-32	800	300	0.040	0.25
	XGS33M	1.15-1.17	11.5-11.7	726-870	9.1-10.9	955-1433	12--18	246-262	31-33	800	300	0.045	0.25
	XGS14	0.74-0.81	7.4-8.1	540-609	7.0-7.9	≥1433	≥18	96--111	12--14	800	300	0.020	0.20
	XGS16	0.81-0.85	8.1-8.5	597-669	7.5-8.4	≥1433	≥18	111-127	14-16	800	300	0.020	0.20
	XGS18	0.85-0.90	8.5-9.0	621-708	7.8-8.9	≥1433	≥18	127-143	16-18	800	300	0.020	0.20
	XGS20	0.90-0.94	9.0-9.4	653-732	8.2-9.2	≥1433	≥18	143-159	18-20	800	300	0.020	0.20
	XGS22	0.94-0.97	9.4-9.7	677-740	8.5-9.3	≥1433	≥18	159-175	20-22	800	300	0.020	0.20
	XGS24	0.97-1.02	9.7-10.2	693-772	8.7-9.7	≥1433	≥18	175-191	22-24	800	300	0.030	0.20
	XGS26	1.02-1.05	10.2-10.5	748-796	9.4-10.0	≥1433	≥18	191-207	24-26	800	300	0.030	0.20
	XGS28	1.05-1.08	10.5-10.8	756-820	9.5-10.3	≥1433	≥18	207-223	26-28	800	300	0.035	0.20
	XGS30	1.08-1.11	10.8-11.1	788-836	9.9-10.5	≥1433	≥18	223-239	28-30	800	300	0.035	0.20
	XGS32-A	1.11-1.13	11.1-11.3	812-860	10.2-10.8	≥1433	≥18	239-246	30-31	800	300	0.035	0.22
	XGS32-B	1.13-1.15	11.3-11.5	820-870	10.3-10.9	≥1433	≥18	246-255	31-32	800	300	0.040	0.25
	XGS33	1.15-1.17	11.5-11.7	830-880	10.4-11.0	≥1433	≥18	246-262	31-33	800	300	0.045	0.25
	XGS14H	0.74-0.81	7.4-8.1	557-629	7.0-7.9	≥1990	≥25	96--111	12--14	800	350	0.020	0.20
	XGS16H	0.81-0.85	8.1-8.5	605-669	7.6-8.4	≥1990	≥25	111-127	14-16	800	350	0.020	0.20
	XGS18H	0.85-0.90	8.5-9.0	629-708	7.9-8.9	≥1990	≥25	127-143	16-18	800	350	0.020	0.20
	XGS20H	0.90-0.94	9.0-9.4	661-732	8.3-9.2	≥1990	≥25	143-159	18-20	800	350	0.020	0.20
	XGS22H	0.94-0.97	9.4-9.7	685-740	8.6-9.3	≥1990	≥25	159-175	20-22	800	350	0.020	0.20
	XGS24H	0.97-1.02	9.7-10.2	700-772	8.8-9.7	≥1990	≥25	175-191	22-24	800	350	0.030	0.20
	XGS26H	1.02-1.05	10.2-10.5	756-796	9.5-10.0	≥1990	≥25	191-207	24-26	800	350	0.030	0.20
	XGS28H	1.05-1.08	10.5-10.8	764-820	9.6-10.3	≥1990	≥25	207-223	26-28	800	350	0.035	0.20
	XGS30H	1.08-1.11	10.8-11.1	796-836	10.0-10.5	≥1990	≥25	223-239	28-30	800	350	0.035	0.20
	XGS32H-A	1.11-1.13	11.1-11.3	820-860	10.3-10.8	≥1990	≥25	239-246	30-31	800	350	0.035	0.22
	XGS32H-B	1.13-1.15	11.3-11.5	830-880	10.4-11.0	≥1990	≥25	246-255	31-32	800	350	0.040	0.25
	XGS33H	1.15-1.17	11.5-11.7	840-890	10.5-11.1	≥1990	≥25	246-262	31-33	800	350	0.042	0.28

Sm₂Co₁₇-LT	XGS14LT	0.74-0.81	7.4-8.1	557-629	7.0-7.9	≥1592	≥20	96--111	12--14	840	350
	XGS16LT	0.81-0.85	8.1-8.5	605-669	7.6-8.4	≥1592	≥20	111-127	14-16	840	350	-50--20℃	+0.005%/℃
	XGS18LT	0.85-0.90	8.5-9.0	629-708	7.9-8.9	≥1592	≥20	127-143	16-18	840	350	20--200℃	-0.008%/℃
	XGS20LT	0.90-0.94	9.0-9.4	661-732	8.3-9.2	≥1592	≥20	143-159	18-20	840	350	200-300℃	-0.011%/℃

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SmCo Ring Magnets

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