Rubber magnets are made by bonding ferrite magnetic powder, synthetic rubber or plastic and other materials through extrusion molding, calendering molding, injection molding and other processes. It has the characteristics of light specific gravity, softness, good elasticity, twistability, strong magnetic retention, easy processing and energy saving. Can be produced into strips, rolls, sheets and other complex shapes, suitable for electronics, electrical industry and household appliances industry, motor stator and rotor, toys, stationery, advertising, printing and decoration and other fields.
Production Process:
Ingredient---->Mixing---->Extrusion/Calendering/Injection Molding---->Processing---->Magnetization---->Inspection---->Packing
|
Grade |
MT(G) |
KA/m (Oe) |
KA/m (Oe) |
KJ/m3(MGOe) |
|
PRM-5T |
140-155 (1400-1550) |
90-120 (1125-1500) |
130 (1625) |
4.0-5.6 (0.5-0.7) |
|
PRM-8 |
160-185 (1600-1850) |
120-140 (1500-1750) |
150 (1875) |
5.6-7.0 (0.7-0.89) |
|
PRM-10 |
200-210 (2000-2100) |
145 (1812) |
160 (2000) |
8.0-9.6 (1.0-1.20) |
|
PRM-11 |
230-245 (2300-2450) |
160 (2000) |
175 (2188) |
10.0-11.0 (1.25-1.39) |
|
PRM-13 |
250 (2500) |
160 (2000) |
182 (2275) |
11.2-12.6 (1.40-1.51) |
|
PRM-15 |
260 (2600) |
172 (2150) |
196 (2450) |
12.0-12.8 (1.50-1.60) |
|
PRM-11H |
230-240 (2300-2400) |
170 (2125) |
188 (2500) |
10.0-11.0 (1.25-1.34) |
Magnetic characteristic of rubber magnet
|
Classification |
Type |
MT（GS） |
Hcb KA/m (Oe) |
KA/m(Oe)
|
(BH)max KJ/ m3(MGOe) |
Composition |
Mode of production |
|
Isotropic Rubber Magnet |
YNT-4 |
135-155(1350-1550) |
85-105(1050-1300) |
175-210(2200-2600) |
3.2-5.0(0.40-0.62) |
BaO.6Fe2O3 SrO.6Fe2O3 |
Extruding Rolling |
|
YNT-S5 |
165-180 (1650-1800) |
90-105 (1130-1300) |
135-160(1700-2010) |
4.5-5.8(0.56-0.72) |
|||
|
YNT-B5 |
170-190 (1700-1900) |
90-115 (1200-1450 |
150-190(1885-2400) |
4.6-6.5(0.57-0.80) |
|||
|
YNT-6.5 |
185-200(1850-2000) |
90-110(1130-1380) |
125-150(1570-1885) |
6.0-7.0(0.74-0.93) |
|||
|
Anisotropic Rubber Magnet |
YNY-10 |
220-240(2200-2400) |
140-165(1760-2070) |
200-235(2500-2950) |
9.0-10.5(1.1-1.30) |
SrO.6Fe2O3
|
Rolling |
|
YNY-11 |
230-250(2300-2500) |
145-165(1820-2070) |
190-225 (2380-2850) |
9.5-11.0(1.18-1.36) |
|||
|
YNY-13 |
250-270(200-2700) |
175-190(2200-2400) |
200-230 (2500-2900) |
11.5-14.5(1.42-1.80) |
|||
|
YNY-15 |
≥270(≥2700) |
175-190(2200-2400) |
200-230(2500-2900) |
≥14.5(≥1.8) |
Other Physical Characteristic
Density ： 3.6-3.8 g/cm3
SHORE Hardness ： 30-60 SHORE D
Temperature Coefficient ： -0.2 %/ °C
Operation Temperature： -40~80°C