Custom N52 Grade Cylinder Industrial Neodymium Magnets For Loudspeaker RoHS - MJMN: IM02

Custom N52 Grade Cylinder Industrial Neodymium Magnets For Loudspeaker RoHS For Sale, Most Competitive Price, Fast Delivery, Custom Service, Wholesale Custom N52 Grade Cylinder Industrial Neodymium Magnets For Loudspeaker RoHS, Made in China, High Quality Products!, China cheap prodocuts, china suppliers Supplier, Manufacturer.
Custom N52 Grade Cylinder Industrial Neodymium Magnets For Loudspeaker RoHS

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N52 Strong Permanent Magnet for LoudSpeaker? with RoHS Compliance
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Product Description & Specification:
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Good Loudspeaker begins from choose high quality magnets. Good quality magnets is in Zhongci!
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1.?Grades
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Range: N35-N52; N35M-N50M;
?????? N35H-N48H, N35SH-N45SH;
?????? N30UH-N40UH,??N30EH-N38EH.
Professional suggestions: ?
??? - The grade like N48-N52 could meet your requirements on strong power.
? ? - Standard one like N35 or N40 is okay for your normal applications.
??? - If you have requirement on the working temperature, please note it.
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Maximum?Working?Temperature:
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? ?N35-N52,?????80°C(176°F)
? ?35M-50M,?????100°C(212°F)
? ?35H-48H,????120°C(248°F)
? ?35SH-45SH,??150°C(302°F)
? ?33UH-40UH,??180°C(356°F)
? ?33EH-38EH,??200°C(392°F)
? ?28AH-35AH,??220°C(428°F)
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2.?Shapes
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????Others available: Block, Ring, Cylinder, Disc, Customized shape as your design.
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3.?Size
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Block / Bar | ?Length x Width?x Thickness |
Disc / Cylinder | ?Diamter x Thickness |
Ring | ?External Diamter x Internal Diameter x Thickness |
Irregular | ?According to customer& acute;s size or drawing request. |
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You could choose freely according to your plan.
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4.?Coatings
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Others available: Nickel,?Zinc, Gold, Silver, Epoxy, Parylene,?etc.

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? ? ? ? ? ? ? ??????????????? Coating and Corrosive Resistance of Sintered NdFeB |
Surface | Coating | colour | Thickness
(um) | Resistance can be | Corrosive Resistance |
PCT Test | Salt Spray Test |
Nickel | Ni/NiCuNi | Silver | 10-20 | 48h/72h | 72h | excellent |
Zinc | blue zinc/colour zinc | brightblue/shinyblue | 8-20 | 24 | 24 | good |
epoxy | epoxy/NiCu+Epoxy | black/grey | 15-25 | 48 | 96 | excellent |
Tin | NiCuSn | silver | 15-20 | 72 | 72 | superior |
Parylene | Parylene | grey | 15-25 | 96 | 200 | superior |
Teflon | Teflon | grey | 10-20 | 12 | 24 | superior |
Phosphorization | ? ? ? - | grey | 1-2 | ? ?- | ? - | temporary protection |
Passivation | ? ? ? - | grey | 1-2 | ? ?- | ? - | temporary protection |
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?5. Orientation
?Through the direction of thickness or according to your needs.
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a. Thickness Magnetized
b. Axially Magnetized
c. Diametrally Magnetized
d. Mult-poles Magnetized
e. Radial Magnetized
f. Customzied Specific Requirements Magnetized
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6. Product process flows
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7. Applications:
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Competitive Advantage:
# # Original manufacture
# More than15years magnet manufactured experiences(since 1999)
# Competitive price, stable quality, fast delivery, good service.


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Please have the following information avaliable when you contact us.
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# # The magnet’s Grade.
# Any?details?on?finish?of?surface.
# Dimensions,?tolerances,?shapes.
# Application?for?magnet.
# Quantities.
# Any?other?specifications?&?information.


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We?can?manufacture?a?custom?magnet?for?your?application.If you have any question,please do not hesitate to contact me.
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FAQ:
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? ? ? ? ? 1.What’s the payment terms?
# T/T in advance (telegrafic transfer - bank order), for new customer, or small order , or samples order, or shipment by air.
# L/C for larger order.
# Any other payment terms,we can talk over them.

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2. Sample fee?Delivery date?Shipment?
# Sample fee:?If it is commonly used specifications of the products and our warehouse have inventory, we can provide you with free samples; ? ? ?Customized specifications of the products, we need a certain amount of sample fee to control the cost of material.
# Delivery Date:? It& acute;s according to the contract,If for any reason there is a delay, we will contact you with an estimate of the revised delivery date.
# Shipment:?We always use DHL?Courier company.Fed Ex,EMS etc.,we can talk over this.

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3. Will magnets lose their power over time??
Do lose a very small fraction of their magnetism over time. But if elect the wrong materials and exceed the max work tempreture,magnet will lose magnetism forever.
4. Why are most neodymium plated or coated??
A: Neodymium magnets are mainly constructed of Neodymium, Iron and Boron. Iron can oxidize very easily when exposed to moisture and will rust over time.?
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About us:
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Zhongci Holding:
Guangzhou ZhongCi Magnetic Co., Ltd(Location: Zengcheng, Guangzhou)
MingJie Magnets Co., Limited(Wuxi, Jiangsu)
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Guangzhou Zhongci Magnetic Co., Ltd.

Address: Shajiao,Xiancun,Zengcheng聽Economy聽development聽zone, Guangzhou, Guangdong, China, 510000
Tel: 86-020-82781333
Guangzhou Zhongci Magnetic Industrial Co., Ltd., located in Zengcheng Economic and Technological Development Area, is a high-tech company, which has been specializing in development, manufacturing, and sales of rare earth permanent magnets, including sintered NeFeB, bonded NdFeB, and injection molded magnet. The manufacturing team is led by skillful engineers with nearly 20 years' experience, and our company is greatly supported by consultant team from domestic experts in industry. ISO9001 was certified and quality management system was built according to ISO9001. In order to increase the scale of production, huge investment was employed on new equipment 2013. Our products are sold in China and abroad, and are widely applied on electro-motor, generator, home appliance, instrument and acoustic etc. With the foundation of technology, and business philosophy of win-win cooperation, we intend to co-develop with clients and create brilliant future together. ZC has acquired the Quality management System Certificate of ISO9001:2008. The magnets are made of the best-quality steel in accordance with ISO standards.And our products also pass SGS and RoHS.

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