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Home > Products > Magnet Dimension > Magnet Grade > permanent N35 small magnets round

permanent N35 small magnets round

Product Description

Specifications small magnets round

1.small round Ndfeb Magnet

2.7 years alibaba gold supplier

3.good price, fast delivery

 small magnets round MATERIAL:are composed of neodymium 20%-30%, iron 60%, boron and a few transition metals.  Attributes of Neodymium Very high resistance to demagnetization High energy for size Good in ambient temperature Moderately priced Material is corrosive and should be coated for long term maximum energy output Low working temperature for heat applications, but higher levels of heat resistance materials are                                                 being introduced periodically.    Product Description  small magnets round 1.material : sintered  NdFeN magnets 2.grade: N35-N52, N38M-N50M, N35H-N48H, N33SH-N44SH, N30UH-N40UH, N30EH-N35EH,               N28AH-N35AH 3.shape: ring, block ,arc.disc and as your requirement 4.size: D30X2mm 5.magnetization direction: thickness, axial, radial 6.surfaceing coating : Zn, Ni. double Ni. Ni+Cuz+Ni ,epoxy and so on   A. Advantage a. Chemical Composition: Nd2Fe14B: Neodymium Magnets are hard, brittle and easily corrode; b. Moderate Temperature Stability: Neodymium magnets lose -0.09~-0.13%of Br/°C. Their working    stability is under 80°C for low Hcj Neodymium magnets and above 220°C for high Hcj Neodymium    magnets; c. Excellet Strength Value: The highest(BH)max reaches up to 51MGO.   B.Application memo,toy,lab , sensors, speakers, brushless motor, DC motor, Step motor, wind turbine/wind generator,           magntic hooks, magnetic filter, cup magnet, Automobiles, magnetic coupling, magnetic chuch, permanent  magnetic lift, and so on.    C. the  physical properties
Density 7.45g/cm3
Reversible Temp.Coeff -0.11%/ oC
Curie Temperature 310~340oC
Hardness 600Hv
Resistivity 144 cm
Compressibility 9.8x10 -12m2/N
Tensile Strength 8.0kg/mm
Flexure Strength 25kg/mm
Specific Heat 0.12kCal(kg.oC )
Packaging & Shipping  small magnets round   's delivery and packing + delivery : 7--- 15 working day + packing :  Plastic bag -> Inner box -> Master carton: 29cm x 23cm x 14cm Plywood case (1) air package (2) sea package surface treatment The corrosion resiatance of Ndfeb is considered ad its drawback ,in order to protect the corrosion ,  it is effective to coatted on  its surface , commonly surface trestment of magnet detail ad followed
 Metallic :
 white zinc , colur zinc , nickle, nickle + nickle , nickle + tin, nickle + copper + nickle , epoxy , passivation
characterisitics of surface treatment : magnet produce manufacturing small magnets round a. the raw material are burdebed according to Ndfeb . b. the burdeded material are melted at a high temperature to form an alloy ( or stip casting ) in    vacuum induction furnace . c.the particles are placed in a magnetic field and pressed into any desired shape . d.the products are heat treated at a temperature of 1000 degress or higher in a sintering furnace.   and then aging the magnets to adjust the properties. e.the magnets are tested their magnetic properties . f. the manets are machined to the desired size and shape including surface treatment . g. visual inspection at last.       Company Information Sunny Fore Magnet  we are factory for small magnets round  , - Various Dimension & shaped : (up to client's demend) -Tolerance: +/-0.05mm - Coating: Ni, NiCuNi, Zn, Au, Ag, epoxy - Quality is pass RoHS(2002/95/EC)  & EN71/3, REACH - Delivery day is about 7-15 days. Magnet Packing workshop magnet making machine quality first : magnet testing sunny fore magnet co.,ltd FAQ FAQ : about small magnets round  !!  1. [ where is sunny fore magnet co.,ltd ?]     [ Helen reply :  we are the factory on Jiangmen city, Guangdong province , China . which is not     far from  Guangzhou . it noly take  you an hour form Guangzhou Sourth station to  our factory .]   2. [ what is your main product ]      [ Helen reply : our main product is sintered Ndfeb magnet , bonded ndfeb magnet , Rubber Magnet,     Ferrite Magnet  and   more  the product has beed widely use ]   3.[ how do you control product 's qualtity  ? ]    [ Helen reply : with advanced testing equipment , we have a stonger R&D engineers team ready to    service for you ,.our company is approved by the ISO9001:2008 and ISO14001:2004 standard .]   4.[ if would like to make order, what info I tell you and how ]   [ Helen reply : please tell us the detail included size , grade , surface coating ,quantity by  email ,   alibaba trade manager or skype helen liang ]          

Contact us if you need more details on Small Magnets Round. We are ready to answer your questions on packaging, logistics, certification or any other aspects about N35 Small Magnets Round、Permanent N35 Small Magnets Round. If these products fail to match your need, please contact us and we would like to provide relevant information.

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