Different sizes of rubber magnet/ magnet sheet

Rubber magnet belongs to ferrite magnetic material series, which is composed of bonded ferrite magnetic powder (SrO6, Fe2O3), chlorinated polyethylene (CPE) and other additives (EBSO, DOP) compounded with synthetic rubber, which is classified into isotropic rubber magnet and anistropic rubber magnet. Its basic processing includes extrusion molding, calendering molding, injection molding, other molding.

Products Details

Curie temperature(℃) 100
Maximum operating temperature(℃) -40~80
Hv(MPa) 33-38D
Density(g/cm3) 3.6-3.8

Material Inspection

Model Product Type Magnetic Performance Physical Property
Br   BHc   Hcj   BHmax Tensile Strengt Hardness Density Temp.
mT Gs KA/m Oe KA/m Oe KJ/m³ MGOe kg/c㎡ A g/cm³
DMS001 Isotropic extrusion magnetic strip 140- 180 1400- 1800 105- 130 1320- 1635 160-238 2010-3000 4-6.4 0.5-0.8 ≥20 ≥90 3.6-3.8 -40~85
DMS002 Semi-anisotropic extrusion magnetic 180-210 1800-2100 130- 151 1635- 1900 175-286 2200-3600 6.4-8.8 0.8- 1. 1 ≥20 ≥90 3.6-3.8 -40~85
DMS003 Isotropic colendering rubber magnet 180-220 1800-2200 111- 143 1400- 1800 143- 191 1800-2400 5.6-8.8 0.7- 1. 1 ≥20 ≥95 3.6-3.8 -40~85
DMS004 Anisotropic extrusion magnetic strip 210-250 2100-2500 151- 179 1900-2250 191-319 2400-4000 8.8- 12 1. 1- 1.5 ≥20 ≥90 3.6-3.8 -40~85
DMS005 Semi-anisotropic colendering rubber magnet 220-240 2200-2400 128- 151 1600- 1900 159-207 2000-2600 8.8- 11.2 1. 1- 1.4 ≥20 ≥95 3.6-3.8 -40~85
DMS006 Anisotropic colendering rubber 240-270 2400-2700 151- 179 1900-2250 191-238 2400-3000 11.2- 13.6 1.4- 1.7 ≥20 ≥95 3.6-3.8 -40~85
DMS007 Electric motor strip 500# 240-270 2400-2700 151- 179 1900-2250 191-238 2400-3000 11.2- 13.6 1.4- 1.7 ≥15 ≥95 3.6-3.8 -40~85
DMS008 Electric motor strip 300# 240-265 2400-2650 151- 179 1900-2250 191-238 2400-3000 11.2- 13.2 1.4- 1.65 ≥15 ≥95 3.6-3.8 -40~85

Material Mixing

Banburying

Crushing

Extruded Molding

Inspection and Packaging

After processing, the shape is flexible, elastic, and bendable, and the shape can be trimmed according to the required size, and it can also be covered with PVC, adhesive, and UV oil according to customer specific requirements. Its performance testing generally includes appearance, size, magnetic properties, magnetic polarity, hardness, specific gravity, tensile strength, aging resistance, rotation performance. Its advantages are on its good consistency, high dimensional accuracy; good impact and vibration resistance, not easy to break; small gravity which is conducive to the lightweight of the device and the whole machine; it can be manufactured into a magnet with full radial (full radiation) orientation, and it can be produced with different shapes magnets such as long and thin shapes, and when post-processing such as blanking, cutoff, punching and bending can be easily performed. Its disadvantage is that the magnetism is very weak, and the magnetic force begins to decline at 100°C, besides, the rubber magnet contains a lot of metal substances such as neodymium and iron, which will be corroded and rusted in the air, and the temperature characteristics are relatively poor, and it is easy to be pulverized. It is mainly used in Tight seals on refrigerator doors, disinfection cabinets, kitchen cabinets, toys, stationery, advertisements, computer cooling fan motors, air-conditioning air supply motors, printer drive motors, VCD and DVD drive motors, brushless DC wind (hanging) fans, magnetic Door seals, decorations, health care magnetic mattresses, magnetic rodsMagnetic provisional driver sign for passenger vehicles,Curing installations for elevators (practically all elevators use curing sheets), Stationery and novelty goods (ideal for public relation items).

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