Neodymium magnet is the strongest magnet in the world till now that can lift up to 1000 times its own weight, it is mainly made of Neodymium, Iron and Boron. It is high remanence, high coercive force, high energy product and high performance/cost ratio. Neodymium magnet is anisotropic and only magnetized in one direction.

Feathers of Permanent Magnet DC Stepper Motors:

1. Materials: Neodymium-Iron-Boron;

2. Technology: Utilizes new Sintered NdFeB magnet techniques and equipment such as strip casting, HDDR technology; 

3. Magnetic properties: High coercive force, the max operation temperature is up to 240°C or 464°F; 

4. Grades of Permanent Magnet DC Stepper Motors: N30-N54, N30M-N52M, N30H-N50H, N30SH-N45SH, N28UH-N42UH, N26EH-N38EH, N28AH-N35AH;

5. Shapes: segment / tile / arc magnets,;

6. Sizes: OR x IR x H x Degree, Customized;

7. Tolerance: ±0.05mm, Customized;

8. Coatings of Permanent Magnet DC Stepper Motors: Passivation, Nickel, Zinc, Tin, Aurum, Copper, Epoxy, Chemical, etc.

Surface	Coating	Thickness (Microns)	Color	Resistance
Passivation		1	Silver grey	Temporary protection
Nickel	Ni+Ni	10-20	Silver bright	Excellent to humidity
	Ni+Cu+Ni
Zinc	Zn	8-20	Shining light blue	Good to salt spray
	Cu-Zn		Shining color	Excellent to salt spray
Tin	Ni+Cu+Sn	15-20	Silver	Superior to humidity
Aurum	Ni+Cu+Au	10-20	Shining gold	Superior to humidity
Copper	Ni+Cu	10-20	Shining gold color	Temporary treatment
Epoxy	Ni+Cu+Epoxy	15-25	Black, red, grey color	Excellent to climate humidity and salt spray
	Zn+Epoxy
Chemical	Ni	10-20	Silver grey	Excellent to humidity

Despription of Permanent Magnet DC Stepper Motors: Permanent Magnet DC Stepper Motors, Arc neodymium motor magnet
1.Shape: Arc,Segment
2.High working Temp.
3.Grade:M,H,SH,UH,EH,AH
4.Appliaction of Permanent Magnet DC Stepper Motors:Motors, sensor, Sintered Neodymium Stepping Motor Permanent Magnet, Permanent Magnet DC Stepper Motor : is one of the high performance rare earth permanent magnets, which use neodymium (Nd), iron (Fe), and boron (B) as their main ingredients.
1. The NdFeB magnet has high remanence, high coercive force, high energy product and high ratio between   performance value and product cost.
2. It can be easily formed into various sizes.
3. Smaller size and lighter weight in designing devices
4. Advantages:
     a) High energy
     b) Very high Hc and Hci output
     c) More economical than SmCo
     d) Wonderful performance at ambient temperature
5.High energy range from 30MGOe to 53MGOe with wonderful coercive force
6. For most applications, coating or plating is recommended.
7. Disadvantages:
     a) Working temperature is below 220°C.
     b) Prone to oxidation than other magnet alloys