Permanent Magnets Manufacturer China Rare Earth Magnet Limited

Physical Performance:
In actual manufacturing process of ferrite magnets, due to physical performance, raw materials with excellent performance sometimes cannot produce ferrite permanent magnets with good performance and micro structure. Performance of listed magnets includes average particle sizes (APS), specific surface area (SSA) and apparent density (AD). Because iron oxide covers about 70% of dosing of manganese zinc magnets, APS has great impact on APS of ferrite magnetic powder. Commonly, if APS of iron oxide is low, APS of magnetic powder will low as well. This can accelerate chemical reaction. APS should not be low, because small particles are not fit for pressing, sintering and crystallizing. Apparently, if APS of oxide iron are too big, in pre-sintering process, diffusion reaction of spinel can solely process, which will increase aviation energy in sintering process and are not good for solid-phase reaction.

OD30*ID9*6mm Y30 Ring Permanent Magnets Manufacturer China Rare Earth Magnet Limited



Ceramic ring magnets with countersunk hole/ Customizable dimensions

 

OD12.8*ID6.5*10mm small ring ferrite magnet

 

Others:
OD44*ID33*6mm thin ring magnets
OD38*ID4.5*10mm ferrite magnet with hole/ round magnets
OD37*ID25*8mm ring magnets
OD28*ID18*9.9mm ring
OD30*ID9*10mm ceramic ring magnets
OD30*ID4*4mm ferrite ring magnets with small hole
OD15.5*ID6.5*12.7mm high ring magnets
OD48*ID26*8mm speaker magnets

 

OD20*ID10*3mm small ring magnets
OD30*ID20*8mm ring magnets for speakers
OD20*ID12*4.5mm
OD30*ID10*9mm
OD27*ID17*4mm
OD20*12.5*2.5mm ferrite magnetic ring

OD75*ID57*4mm oil filter permanent magnet



China Rare Earth Magnet Limited always manufacture magnetic products according to requirements provided by clients, welcome to sending enquiry.