Neodymium Magnets for Bearing 20160528

Custom NdFeB Permanent Magnets Ring for Magnetic Bearing

Looking for Permanent Magnet for Bearing:
We are instrument manufacturers with more than 20 years of existence. We are designing a magnetic bearing for our new product and need neodymium ring magnets.

We are looking for the following sizes magnets. The first magnet is the core magnet while the second is the outer ring.

1. Inner diameter * mm (tolerance +0.00 to +0.01), outer diameter * mm. (tolerance (- 0.1 mm to -0.12), height * mm
2. Inner diameter * mm (tolerance +0.01 to +0.012), outer diameter * mm (tolerance - 0.001 mm to -0.015)

These magnets are for bulk consumption. If you are already having such sizes, kindly let us know. As this is for bearing purpose, the tolerance is critical. Let us know the cost per thousand for each size.

Please send quotation for samples in each for our trials. The magnets need to be axially magnetized.


Neodymium Magnet Manufacturer China Rare Earth Magnet Limited:
Thanks so much for your inquiry.
We are an experienced permanent magnets manufacturer, specialized in producing neodymium NdFeB magnets.
Please inform us the grade of magnets you need.

Besides, we have checked your tolerances. They are too tight and too small to reach.
Commonly, we can do ±0.05mm for tolerances. Is it acceptable?
Please kindly adjust the tolerance appropriatly.

Gun Magnets 20160525

N52 Neodymium Block Magnets for Shotgun Holder of Hunting 

Inquiry of Rare Earth Permanent Block Magnets for Shotgun Holder: 
Material: Sintered Neodymium Magnet  N52 Block Magnets, Sizes as per drawing

Magnetized or not: magnetized
Magnetization direction: Through thickness
Coating: NiCuNi
Application: Magnetic Holder for Shotgun of Hunting
Hunting is very popular abroad, so we develop a magnetic holder for shotgun. When you put a gun on the holder, magnets inside will attract it so that the shotgun is fixed, which is helpful for hunters to aim at preys.

Please offer quote with shipping cost and inform us the fastest production time.

N52 Magnets Manufacturer China Rare Earth Magnet Limited 
We are specialized in producing neodymium iron boron magnets.
I attached the quotation.

How to Distinguish N pole and S pole 
Thanks for your quote. Due to our application, we need to distinguish N pole and S pole of the magnets. How can we do that?

Magnet Marking: 
Commonly, we make red dots or lines on surface of permanent magnet to help customer differentiate N and S poles. We will mark the magnets according to your requirements.

Plastic Spacers Help Separating Magnets Easily
Because magnetism between each magnet is too strong, hardly can we separate the magnets before. We hope you can help us.

Neodymium Magnet Manufacturer China Rare Earth Magnet Limited 
In order to avoid the above problem, we will put plastic spacer with thickness 5mm between each magnet to help you separating the magnets easily.
Because of strong magnetism, please put on gloves when you try to separate the magnets and softly slide one magnet from another instead of pushing them forcibly, in order not to hurt your fingers.

Magnetic Isolation for Sea Shipping

We never import magnets before, so we wonder if there is any restriction when shipping magnets by sea from China, because magnets we order have strong magnetism.

Permanent Magnet Company - China Rare Earth Magnet Limited 
With many years of experience, we help many customers smoothly shipping magnets via sea transportation from China to their destinations. We will put iron sheet to isolate magnetism so that packing conforms to sea shipping.

Halbach Permanent Magnets 20160521

N52 Neodymium Halbach Magnets in Square Shape 

Inquire N52 Square or Block Magnets for Hyperloop Pod:
We are looking for big permanent magnets and building our hyperloop pod now.

We will use neodymium magnets to make the levitation system for our pod and looking for your assistance to provide those.
Please provide a quote and delivery time:
Halbach1---square magnets
Halbach2---square magnets
Would you also be able to assemble Halbach arrays with these? We'd need these on a steel backing plate.
Block Magnets magnetized through the thickness
Grade N52 for all magnets

Halbach Magnets Manufacturer China Rare Earth Magnet Limited:
We are an experienced permanent magnet supplier, specialized in producing NdFeB magnets with different magnetization directions.
Quotation of block magnets is in process. We will offer you quote later.
Regarding for Halbach array magnets, we once provided other customers with such magnets. But we only produced magnets and the customers assembled Halbach array after he received the magnets. In addition, magnets for Halbach array have special magnetization direction. Could you please send us the engineering drawings indicating the angles of magnetization direction of the magnets?

CAD Drawings: 
I attached the revised drawings.

Neodymium Permanent Magnets Manufacturer China Rare Earth Magnet Limited: 
Thank so much for your reply.
But the two files did not indicate any angles of magnetization direction of the magnets.
As we mentioned in the mail this morning, magnets for Halbach array have special magnetization direction.
Could you please send us the engineering drawings indicating the angles of magnetization direction of the magnets?
We once provided other customers with such magnets.
But we only produced magnets and needed the customers to assemble Halback array after he received the magnets.

Big N52 Block Magnets Manufacturer China Rare Earth Magnet Limited:
Please kindly check the quotation below.
N52 Neodymium Iron Boron Magnets , Block Shape, Sizes as per drawings, NiCuNi, Magnetized through Thickness
Unit price: FCA Shanghai USD***/pc

N45SH Motor Magnets 20160518

N45SH Neodymium Block Magnets & Arc Magnets for Permanent Magnet Motors

Looking for Magnets Used in Permanent Magnet Motors:

We are designing and manufacturing PM electrical motors.
Would you mind give us a quotation on N45SH /N48SH?

Custom Neodymium Magnets Manufacturer China Rare Earth Magnet Limited:
Thanks for your contact and enquiry about magnets.
Please could you provide more information about the magnets you need.
Magnetism orientation
What's the demand quantity?
We will calculate price after hearing from you.

Magnet Specification: 
Thank you for your fast response. Hope you are well.
I attached a file which includes the magnets specifications (magnetism orientation, dimension) and quantities.
We need all of them in N48SH grade. Do you produce this grade?
Furthermore, I would like to know, do you produce multi-pole magnets in arc-form or block-form?
I am looking forward to your reply.

Revised Drawings: 
Sorry for re-sending the email. I updated the attached file which indicating the orientation in more details

N45SH Permanent Magnet Manufacturer China Rare Earth Magnet Limited:
It's so nice to receive your prompt reply.
Thanks for providing more specifications about the magnets you need.
We provide our quotation based on N45SH grade for your information.
The price will be relatively cheaper upon increased quantity.
Please kindly be noted N48SH is not producible for the time being.
Perhaps you can choose N48H instead if the maximum handling temperature is under 120℃.
N45SH Neodymium Magnet, Black Epoxy, Magnetized
Block magnets as per Drawing / Magnetized across thickness / Ex-works Shenzhen USD***/pc
Arc magnets as per Drawing / Magnetized across diameter / Ex-works Shenzhen USD***/pc

Magnet’s Paste: 
Thank you for your prompt response.
1-actually we paste the neodymium magnets with heat-cured paste (permabond MS359) which is completely take reaction in 140C. Do you recommend any other magnet's paste (like permabond) which paste to the magnet in lower temperature (air temperature)? In this case we can purchase N48H too!
2-furthermore what is your minimum tolerance?! Could you produce magnets in 0.02-0.03mm tolerance (in 1.8mm thickness)??
3- Could we grind your permanent magnets?

Neodymium Permanent Magnet + 3M Adhesive 20160511

Custom Neodymium Disc Magnets or Block Magnets with 3M4945 Adhesive Tape 

Looking for N40 Permanent Magnet Disc + 3M Adhesive Tape:
We are very interested in your manufacturing of neodymium iron boron magnets. Please give us quotation according to our product specification as follows:
Neodymium disc magnets with 3M sticker
Grade: N40
Use in high humidity environment (bathroom), need to be protected against corrosion
Working High Temperature: 180 Fahrenheit degree
The adhesive magnets need to be pulled from attachment for several times within its life time, how big is the magnetic adhesion force?

Magnetic Assembly Manufacturer China Rare Earth Magnet Limited:
What’s the diameter and thickness?
180 Fahrenheit degree is about 82 degrees centigrade, you’d better choose N40M grade, I attached the magnetic properties for your reference.
Regarding magnetic adhesion force, our technician will count it as per the magnet size.

Magnet Coatings for Bathroom Application: 
Whether neodymium permanent magnets can be used in bathroom system with high humidity environment depends on your choice of magnet coating.
We have another customer use magnets in similar environment, his first choice is NiCuNi coating, but the feedback effect is not ideal, so replaced by the epoxy coating.
We can make neodymium permanent magnets with silver, gold, parylene, and many other coatings, you can consult with your engineer to see which kind of more suitable for your application.

Magnet Specification: 
I’m in the engineering department, please quote as per the information below:
Disc Shape - Diameter * Thickness
Block Shape – Length * Width * Thickness
Remarks:
1. Both of the two sizes with NiCuNi & Epoxy coating, N40& N40M Grades
2. If you help to glue 3M adhesive, what’s the extra fee per piece?
3. We are in the stage of research and development, the order quantity is not sure, please quote base on MOQ.

China Rare Earth Magnet Limited customizes neodymium magnet with 3M adhesive : 
Please find the quotation below:
N40 magnet, Magnetized through Thickness, with 3M4945 adhesive tape on surface of N Pole.
Permanent Magnet Discs or Blocks, USD***/pc

Big Neodymium Ring Magnets 20160505

Custom N52 Permanent Magnet Rings with OD200mm 

Looking for Big Neodymium Ring Magnets :
Would you please inform me the price for cylinder magnet D200 x d* x * mm for only 10pcs

Big Permanent Magnets Manufacturer China Rare Earth Magnet Limited:
What's the material and grade of the magnets D200xd*x*mm you enquired?
I need to check with our technician after receiving your response.

N52 Big Magnets: 
Material is Neodymium and grade is N52, un- coated.

N52 Ring Magnets with OD200mm: 

Thanks for providing more information.
I will check with our technicians if this large ring magnet can be produced or not.

Meeting: 
I would inform you, we will be in shanghai- china.
We want to visit two exhibitions in shanghai too. Would you please organize to visit your factory and have a meeting with you?

Neodymium Magnet Manufacturer China Rare Earth Magnet Limited:
Thank you so much for your greetings.
We resumed to work today.
Sorry to say, we won't attend the exhibitions in Shanghai.
So we are unable to meet you in Shanghai. Will you come to Shenzhen to pick up the permanent magnet rings after the second exhibition?
Or shall we send the samples to your Chinese office after we complete the production?

N52 Magnets Manufacturer China Rare Earth Magnet Limited:
We provide quotation of this large ring magnets based on different grades for your reference,
Please kindly be noted the production period of this large and super strong magnets is very long.
Size: OD200 x ID* x T*mm, Uncoated, Magnetized across thickness
N52/Unit Price: USD***/pc
N50/Unit Price: USD***/pc

N48/Unit Price: USD***/pc
Please revert back if you need the neodymium permanent magnets or have other questions.