Countersunk Hole Neodymium Magnets N42 1/2"x1/4" for #6 Screw

Specifications

15mm x 5mm 4mm-hole Round Ring Neodymium Magnets
Materials: Neodymium-Iron-Boron
Strong magnetic strength
Acttractive price

Countersunk Hole Neodymium Magnets N42 1/2"x1/4" for #6 Screw

 

 

 

1. Material                                                 

 

    Sintered Neodymium-Iron-Boron (Sintered NdFeB)

 

2. Grades                             

 

Grades	N35-N52	N35M-N50M	N35H-N48H	N35SH-N45SH	N30UH-N40UH	N30EH-N38EH
Working temperature	80°C/60°C	100°C	120°C	150°C	180°C	200°C

 

 

 

      - The grades like N48-N52 could meet your requirement on strong power

 

      - Standard one like N35 or N38 is okay for your normal applications

 

      - If you have requirement on the working temperature, please note it.

 

 

 

3. Shapes and Sizes              

 

 

 

Block / Bar	Length x Width x Thickness
Disc / Cylinder	Diamter x Thickness
Ring	External Diamter x Internal Diameter x Thickness
Irregular	According to the design

 

 

 

     - Please indicate the shape and size you need;

 

     - For irregular shape, you could give your idea to us and we work it out for you.

 

 

 

4. Coatings                         

 

    Others available:  Zinc, gold, silver, epoxy, parylene, etc.

 

 

 

5. Orientation                    

 

     Magnetized through the thickness ( please let us know if you have special need on magnetization) 

 

 

 

6. Quality                            

 

    Our expert quality control department ensures magnets are high quality

 

 

 

7. Applications                  

 

     Sensors, motors, rotors, wind turbine,wind generators, speakers,loudspeakers, etc.

 

 

 

8. Product Photo                 

 

 

 

 

 

 

 

 

 

 

  

 

  

 

 

 

 

 

Production Ability

 

 

 

•  Cutting machine: 200sets

 

•  Processing Capacity of raw materials: 80tons per month

 

•  Surface treatment/plating: 60tons per month

 

•  Slicing Capacity: 50 million Square Centimeter per month

 

•  Lead Time for Samples: 3-5days

 

•  Lead Time for Small order: 5-10days

 

•  Lead time for Mass production: 7-15day

 

Our Customer (Markets)

 

United States,  United Kingdom,  Russia,  Belgium, India,  Lebanon,  Australia,  Korea,  Ukraine, Thailand,  Malaysia  and so on.

 

 

 

  

 

 

 

 

 

Q) What are neodymium magnets?

 

A) Neodymium magnets are a member of the rare earth family and are currently the strongest permanent magnets in the world! They are composed of neodymium, iron and boron (NdFe)

 

 

 

Q: What does pulling force mean?

 

A: Pulling force is a measure of magnetic strength. It is the amount of force required to remove a magnet parallel to a solid magnetic surface, such as a steel plate.

 

  

 

Q: Do I have to worry about temperature with neodynium magnets?

 

A: Yes. They are sensitive to heat so do not heat them above 175°F (80°C) If you do, they will begin to lose their magnetic strength. This normally applies only to industrial usage of heating the magnets, normal application will not affect the strength of the magnets.

 

 

 

Q: If I stack two neodymium magnets together, does their strength double?

 

A: No. It will a little smaller. For example, two magnets rated with a individual pulling force of 50 lbs will have a combined pulling force of 90 lbs when stacked together.

 

 

 

Q: Do neodymium magnets lose strength over time?

 

A:No. They do not naturally lose any appreciable strength and will last your lifetime! Make sure to not heat them above 175 degree F (80 degrees C).