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Shanghai CJ Magnet Industry Co., Ltd.
Shanghai CJ Magnet Industry Co., Ltd. Manufacturer---NdFeB Magnet, Ferrite Magnet, Alnico Magnet, SmCo Magnet
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Bar / Rod / Ring Alnico Magnets For Guitar Pickups Sintered Alnico 3 Magnets

Shanghai CJ Magnet Industry Co., Ltd.
Shanghai CJ Magnet Industry Co., Ltd.
City: Shanghai
Province/State: Shanghai
Country/Region: China
Tel: 86-21-52661981
Contact Person:
Mrs Amy

Bar / Rod / Ring Alnico Magnets For Guitar Pickups Sintered Alnico 3 Magnets

Brand Name : CJ MAGNET
Model Number : CJ 329
Certification : ISO9001 ISO4001 ISO16949 SGS ROHS REACH
Place of Origin : Zhe Jiang , China
MOQ : 100/1000/10000pcs
Price : USD0.001-50/pc
Payment Terms : T/T
Supply Ability : 600Ton per year
Delivery Time : 7-15work days
Packaging Details : standard sea or air package
Brand : CJ MAG
Name : customized shape high performance Alnico ring magnet
Shape : Alnico magnet
Our strong R&D team : has magnetic experts with more than 30 years experience
Our professional sales team : will offer you 24 hours online service
Our own factory : two factory, one in Anji near by Shanghai and Hangzhou, another in Ningbo.
Contact Now

Bar / Rod / Ring Alnico Magnets For Guitar Pickups Sintered Alnico 3 Magnets

About us
► Shanghai CJ Magnetic Industry aim to be the first-class supplier of magnetic material , magnetic applications and magnetic solutions. We are innovating our products with high technology , gaining market with good quality , creating brand with excellent performance . ► What the most important is that we continue to improve ourselves tp meat clients’ requirement .

♦ Vision: to be the professional supplier of magnet, magnetic systems and solutions;

♦ Mission: to be effiecient, to be energy-saving, to be eco-friendly--for a better future;

♦ Management belief:We continuously improve technologies, products, and customers experiences. We share all values with all of you.

♦ Conduct code:Take ownership / Satisfy customers / Challenge and improve all we do / Trust / Act as a team/ Be honest

Product Details:

Alnico magnets, composed of primarily aluminum, nickel, and cobalt, were developed in the 1940's. This class of magnet remains a preferred material because of it's excellent temperature stability, high magnetic flux density, and resistance to corrosion. Alnico magnets are manufactured through a casting or sintering process. The casting process allows for the magnet to be manufactured into intricate and complex shapes, which are not possible with other magnetic materials.

Key Advantages

Sintered Alnico Magnets:

· Excellent temperature stability

· Strong corrosion resistance

· Fine grain

· Compact crystal.

· Excellent magnetic consistence and evenness.

· Suitable for small volume and complex shape magnets.

Cast Alnico Magnets:

· Excellent temperature stability

· Strong corrosion resistance

· Excellent capacity

· High density and magnetic properties

· Shorter production lead time

· Temperature factor of Br is the smallest among all the permanent magnets

· Cast Alnico magnets can be produced in relatively complex shapes

· Tooling for cast Alnico magnets is relatively low, since sand molds are generally used for the casting process.

Manufacturing Process

Alnico magnets are produced by casting or sintering processes. Anisotropic alnico magnets are oriented by heating above a critical temperature, and cooling in the presence of a magnetic field. Both isotropic and anisotropic alnico require proper heat treatment to develop optimum magnetic properties — without it alnico's coercivity is about 10 Oe, comparable to technical iron, which is a soft magnetic material. After the heat treatment alnico becomes a composite material, named "precipitation material"—it consists of iron and cobalt rich[9] precipitates in rich-NiAl matrix.

Alnico's anisotropy is oriented along the desired magnetic axis by applying an external magnetic field to it during the precipitate particle nucleation, which occurs when cooling from 900 °C (1,650 °F) to 800 °C (1,470 °F), near the Curie point. Without an external field there are local anisotropies of different orientations, due to spontaneous magnetization. The precipitate structure is a "barrier" against magnetization changes, as it prefers few magnetization states requiring much energy to get the material into any intermediate state. Also, a weak magnetic field shifts the magnetization of the matrix phase only, and is reversible.

Common Use

Alnico magnets are widely used in industrial and consumer applications where strong permanent magnets are needed; examples are electric motors, electric guitar pickups, microphones, sensors, loudspeakers, magnetron tubes, and cow magnets. In many applications they are being superseded by rare earth magnets, whose stronger fields (Br) and larger energy products (BHmax) allow smaller size magnets to be used for a given application.


Why Choose Us :

► Professional : Since the establishment of our factory in 2002 , we always insist on the management belief of “Technology innovates production , Good quality creates the market , Excellent performance create famous brand , and Share success with the staff”.

Safety : Our display products are safe to European market and USA market . Eco-friendly , meets ISO9001 , ISO14001 , ISO16949,SGS , ROHS , UL etc .
► Good Quality : We have strict quality control system . Good reputation in the market . We provide magnets for a dozen of famous enterprises such as Gold Wind , AMK from Germany and Panasonnic . .

► Service : One to One personalized service .

When can i get the reply for my inquiry ?
Your inquiry would received our prompt and satisfactory reply within 4 hours during our working time .If you are very urgent to get the price, please call us so that we will regard your inquiry priority .
► About quotation ?
We will present out detailed competitive quotation in an excel form including information such as the packing and delivery time as well as reasonable terms and conditions to you .
► How about the inspection ?
♦ The goods will be inspected by our high - trained QC regardless to the quantity before shipment .
♦ Any problems during the inspection will be informed by us .
♦ Inspection by your side will be highly welcomed if possible and necessary .
♦ Prompt delivery are ensured . For any reason that we can not deliver the goods on time , you will be informed the reasons and reach the settling methods agreed by both of us .

Returns & Refunds Policy

1. Refunds are only available for defective products and you must give us specific reason about our defective products.

2. You have 7 days to contact us and 10 days to return item from the date it was received.

3. You can receive a full refund after I receive your returned item.

4. Returned item must have all original packaging and accessories and you will pay the return shipping fee.

Feedback & Communication

We are glad to hear good advises and suggestions from you .

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