powerful countersunk neodymium ring magnets

Sunny Fore Magnet Company Limited special in suppling Neodymium-Iron-Boron Strong magnet.    Product Description neodymium Ring Magnets 1. Magnet HS code :  85051110.00  or 8505 1190.00   2. Magnet material : Neodymium, Iron ,boron and other  microelements (Al, Ga, Mo,Co).                                    It is known as " King of magnet".   3.Magnet Grade : N35 ~ N52, 33M ~ 50M , 30H ~ 48H , 30SH ~ 45SH, 28UH ~ 38UH , 28EH ~ 35EH                                        N35 is normal . The higher magnet grade , the higher price .     4.Magnet shape :  OEM ( ring, block ,arc.disc and as your requirement )    5. Magnet surface coating : The corrosion resistance of NdFeB is considered as its drawback .In order                                          to protect the corrosion , it is effective to coated on its surface .   Commonly surface treatment of magnet detail as followed 

Coating	Thickness ( um)	Pressure Cooker Test  (120 C, 2 atm, 100 %RH )	Salt Spray Test (5% NaCl , 35 ℃ ,1.2 atm )
Zinc	8 ~15	> 15 hr	> 24 hr
Ni-Cu-Ni	15 ~ 30	> 48 hr	> 48 hr
Electroless Ni	10~20	> 24 hr	> 72 hr
Black Epoxy	10~30	> 24 hr	> 100 hr

  6. Magnetization direction  a. Thickness Magnetized  b. Axially Magnetized    c. Diametrally Magnetized d. Multi-poles magnetized e. Radial Magnetized f. Customzied specific requirements magnetized        7. Magnet produce      8. Magnet 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.    9. Payment : T/T , Paypal , Western Union , Esrow    10 .How to control magnet quality    Packaging & Shipping All magnet can be packed according to customer's requirment .  We can ship by air , by sea or courier.    1/ When Ship by air ,the packing carton must be anti-magnetized     Before shipping , it need to do a testing .    Test detail : The  mentioned magnet field   strength is less than 0.00525gauss at a distance of 2.1meter     Testing fee: about USD50.      Air  shiping packing way    Sea / bulk packing way Company Information   Sunny Fore Magnet Co.,Ltd is located on Jiangmen Guangdong ,China .  Sunny Fore offer neodymium ( Nd-Fe-B ) magnet , Rubber Magnet , Ferrite Magnet .  Sunny Fore is 8 years alibaba gold suppleir     Sunny Fore Magnet Co.,Ltd       Company Certification     Sunny Fore attend exhibition and company activity        Our Services   Sunny Fore Magnet Co.,Ltd is the the factory for Neodymium Magnet , rubber magnet , ferrite magnet .    In order to give you best price, please tell more magnet detail as followed         1/ Magnet material : neodymium magnet ? rubber magnet ? ferrite magnet ?         2/ Magnet grade : Is N35 enough ?        3/ Surface coating : Zinc or Nickel ?       4/ Magnetization direction : Which is working surface ?    Sunny Fore have  right of export and passed ISO9001:2008.   FAQ   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 ]            

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