Speaker Magnet

Product name : Disc magnet,Custom Super Strong permanent 38H Neodymium Arc Magnets for PM motor
Shape:Segment, Disc, Cylinder/Rod, Ring, Countersunk, Segment, Trapezoid, Irregular shapes are available, Customized shapes for Sintered NdFeB Magnet are also available)
Direction of magnetisation : Through the thickness or through the diameter
Type of coating : Nickel, Ni-Cu-Ni, Zn, Gold, Silver, Copper, Epoxy, Chemical, PTFE, Parylene, Everlube, Passivation and so on.
Grade : N48M,N35H,N38H,N38SH,N40SH,N33UH,N35EH
Tolerance in size : +/-0.1 mm

such as stripcasting, hddrtechnology;
9. Applications: sensors, motors, rotors, wind turbine, wind generators, speakers, loudspeakers, magnetic hooks, magnetic holder, filters, etc.

When inquiring, following information offered will be much appreciated .
1.Type of magnet (material & grade)
2. Quantity (annual and per shipment)
3. Shape and dimensions (drawing if necessary)
4. Direction of magnetization
5. Magnetized or not
6. Details of surface treatment
7. Application if possible
8. Other information or requirements

Carton or according to your requirement

1. Materials:sintered neodymium-iron-boron;
2.grades:n35-n52; n35m-n50m; n35h-n48h, n35sh-n45sh; n30uh-n40uh, n30eh-n38eh.


Our advantage

1) free samples
2) all industrial shaped magnets available
3) do as per your drawings
4)100% factory direct price
Note: oem service, high quality, fast delivery, best after-sale service

Carton, according to your requirement

Q:how are magnets made?
¡ê¨¢¡êomodern magnet materials are made through casting, pressing and sintering, compression bonding, injection molding, extruding, or calendaring processes.
Q:how rare earth magnets are made ¡ê
¡ê¨¢¡êomining => melting => milling => aligning&pressing => sintering => inspecting => machining => plating/coating => inspecting => magnetization => packing&shipping .

Our factory produce and manufacture magnets according to customer's design on shape, dimension, grades, coatings etc. 

When inquiring, following information offered will be much appreciated .
1.Type of magnet (material & grade) 
2. Quantity (annual and per shipment) 
3. Shape and dimensions (drawing if necessary) 
4. Direction of magnetization 
5. Magnetized or not
6. Details of surface treatment 
7. Application if possible 
8. Other information or requirements 

Shape and size
Block:length x width x thickness
Disc / cylinder:diamter x thickness
Ring:external diamter x internal diameter x thickness
Segment:according to the drawing
Irregular:according to the drawing

Package:
Air package, sea package, standard package, shielding package to pass through the security at the airport.


Technical specifications of sintered neodymium magnet
Grade Remanence br
Mt (kg) Coercive force hcb
Ka/m (koe) Intrinsic coercive force hcj
Ka/m (koe) Maximum energy product bhmax
Kj/m3 (mgoe) Maximum operating temperature tw
Oc


Wooden frame and carton box

Basic information:
1. Grades: N30-N50, 35M-48M, 33H-42H, 35SH-45SH, 30UH-40UH, 30EH-38EH.
2. Size: various customized
3. Coating: nickel, zinc, expoy, gold and etc.
4. Shapes: Cylinder and we can also manufacture the shape of magnet according to clients' requirement
5. Package: carton or according to the customer requirments
6. Materials:Neodymium-Iron-Boron magnets, Sintered NdFeB magnets
7. Certification: SGS,ISO9001:2000
8. Technology: Utilizes new Sintered NdFeB magnet techniques and equipment such as Strip casting, HDDR technology
9. Magnetic properties:
a) High coercive force,
b) (BH)max from 33 to 53MGOe,
c) Max working temperature up to 230C;

10. Applications:
Sensors, motors, rotors, wind turbines/wind generators, loudspeakers, magnetic hooks, magnetic holder, filters, automobiles, and so on.


Carton: 30cmx30cmx15cm
Wooden Box : depending on the quantity.

Ring ferrite magnet used in speaker unit