JMD8H4 Magnet speaker parts

Specifications magnet speaker parts

more then 400 types available

small order accept

more size can be made

fast delivery time

                                                      JMD8H4 Magnet speaker parts       What is Neodymium Magnet? A neodymium magnet (also known as NdFeB, NIB, or Neo Magnet), the most widely used type of rare-earth magnet, is a Permanent Magnet made from an alloy of neodymium, iron, and boron to form the Nd2Fe14B tetragonal crystalline structure.Developed in 1982 by General Motors and Sumitomo Special Metals, Neodymium Magnets are the strongest type of permanent magnet made.They have replaced other types of magnet in the many applications in modern products that require strong permanent magnets, such as motors in cordless tools, hard disk drives, and magnetic fasteners. Supplier of the world`s strongest magnets.   Product information:

Name	JMD8H4 Magnet speaker parts	Coating	nickel
Item NO.	JMD8H4	Net weight	1.49g per piece
Material	Neodymium magnet	Pull force	1.48lb=0.67kg
Shape	Round	Working temperature	≤80°C
Size	D20*2mm(diameter*thickness)	Magnetism direction	Through thickness
Grade	N35	In stock	Yes
Other sizes available		D8*2.5mm,D8*5mm,D8*3mm more size available

  More introduction:

Items	Neodymium magnet raw material
Material	neodymium-iron-boron
Shape available	Disc,Cylinder,Block,Ring,Countersunk,Segment,Trapezoid,Irregular shapes and more;More shapes can be customized.
Coating/Plating	Ni-Cu-Ni,Nickel,Zinc,Gold,Silver,Epoxy and more.
Working Temperature	Grade	Temp.Coefficient
	N35-N52	80°C  (176°F)
	N35M-N45M	100°C (212°F)
	N33H-N42H	120°C  (248°F)
	N30SH-N40SH	150°C  (302°F)
	N28UH-N35UH	180°C (356°F)
	N28EH-N38EH	180°C (356°F)
	N30AH-N33AH	220°C (428°F)
Technology	We have advanced R&D center,quality control and professional machining technicians.
Application	Neodymium magnet raw magnetrials are widely used in industrial field,such as speaker,louder speaker,sensor,motor,alternator ect;And also it is popular in ladies bags,purses,shoes,crafts and jewelry ect.

                                                                        nickel coated magnet speaker parts                                               More choice for you,different neodymium magnet   For small package,we recommend magnetised-shield package for express delivery or by air. For large package,we recommend wooded package by sea                                                                               Applications of magnet speaker parts    Magnetised direction DISC neodymium magnets can be axially or drametrically magnetized.   Trade terms:

Trade terms	FOB Ningbo
Payment	T/T,paypal,west union,Aliexpress
Lead time	for small quantity 5-7 days;for large quantity 7-15 days
Samples policy	samples free for few,but customer needs to pay the express fee
Transportation	by air,by sea,by express
MOQ	100pcs

  History and manufacturing techniques In 1982, General Motors (GM) and Sumitomo Special Metals discovered the Nd2Fe14B compound. The effort was principally driven by the high material cost of the SmCo permanent magnets, which had been developed earlier. GM focused on the development of melt-spun nanocrystalline Nd2Fe14B magnets, while Sumitomo developed full-density sintered Nd2Fe14B magnets. GM commercialized its inventions of isotropic Neo powder, bonded Neo magnets, and the related production processes by founding Magnequench in 1986. Magnequench, now part of the Neo Materials Technology, Inc., supplies melt-spun Nd2Fe14B powder to bonded magnet manufacturers. The Sumitomo facility has become part of the Hitachi Corporation and currently manufactures and licenses other companies to produce sintered Nd2Fe14B magnets. Hitachi holds more than 600 patents covering Neodymium magnets.   Sintered Nd2Fe14B tends to be vulnerable to corrosion. In particular, corrosion along grain boundaries may cause deterioration of a Sintered Magnet. This problem is addressed in many commercial products by adding a protective coating. Nickel plating or two-layered copper-nickel plating are the standard methods, although plating with other metals or polymer and lacquer protective coatings is also in use. About us:

Company Name	Xiamen Jammymag Electronic S&T Co., Ltd.
Brand Name	Jamag
Business Type	Manufacturer, Trading Company
Main Products	Magnet,Neodymium Magnet,Ndfeb Magnet,Permanent Magnet,Strong Magnet,Neocub,Magnet botton
Operational Address	Hengdian industruy zone, Dongyang City,ZheJiang province
Number of Employees	11 - 50 People
Number of R&D Staff	Less than 5 People
Number of QC Staff	Less than 5 People
Main Markets	North America,Eastern Europe,Mid East, Eastern Asia
Contract Manufacturing	OEM Service Offered

Why choose Jamag: 1.We work with our greatest passion 2.We have 10 years manufacture experience and 4-year exporting experience 3.We insure that you will satisfied with our service 4.We can offer you more advice and professional information of magnets,no matter you place an order or not. 5. wanna be friends with our customers. 6.We have 600 types magnets available now,small order accept   Dear Friend,  Thanks so much for your time to look through this page. No matter you purchase magnet from us or not,we will be glad to offer you professional advice. If there is anything we can do for you,pls feel free to let me know! Contact me ,i`ll be there!          Last Update Time:2013-11-13

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

Product Categories : Magnet Sort by Size > Other Magnet