Description
4.250" (107.95mm) OD x 1.750" (44.45mm) ID x 0.700" (17.78mm) thick, N45 Neodymium Magnets Rare Earth Magnets! Ring Magnets magnetized through thickness. Nickel Plated.
Minimum Order Quantity (MOQ) = 1 pc
Common Applications: Motors, medical devices, automotive, robotics, sensors, consumer electronics.
About Large Ring Magnets: Defined with an outside diameter (OD) equal to or greater than 1.000” (25.40mm). The outer diameter (OD), inner diameter (ID), and thickness will determine the reach and profile of the magnetic field and performance of the ring magnets.
Direction of Magnetization (DOM): Ring Magnets are manufactured so the DOM is set during the manufacturing process and cannot be changed. Available options for DOM that can be produced during manufacturing:
- Through the thickness
- Across the diameter
- Multiple poles on the face of the magnet
- Radially magnetized, with a single pole or multiple pole on the OD and ID
Magnetic Grades: To view a table of grades and specs, see our Neodymium Magnet Grades & Specs
About Nickel Coating on Magnets:
- Most common coating on magnets
- Actually 3 layers, nickel-copper-nickel
- Protection of the magnet from corrosion in ambient air
- Not a protective coating from humidity, water, or salt water
- Light protection of the magnet from chipping
- A decorative finish
- Shiny metallic gray finish
- Thickness: 12-25 microns
- Cost: Low
- Max working Temp: Approximately 200oC
View Characteristics of Magnet Coatings for information on all our coating options.
Custom Magnets: Need custom Ring Magnets? Use one of the below methods to contact a magnetics specialist about your application.
Online Custom Magnet Request Form or Contact Us
Safe Magnet Practices: Neodymium Magnets are a valuable resource to engineers, innovators, product designers and DIY professionals. Always practice safe handling and keep away from children at all times.
| Inside Diameter | 1.750" (44.45mm) |
| Max Working Temp | 80°C |
| MOQ | 1 |
| Outside Diameter | 4.250" (107.95mm) |
| Plating/Coating | Nickel |
| Aprox. Pull Force | 393.90 LB |
| Strength | Neodymium 45 |
| Thickness | 0.700" (17.78mm) |
| Direction of Magnetism |
Through thickness
|
If you encounter a problem with your order, or have questions and wish to return your parts, please contact us at 205-621-8841 or orders@supermagnetman.com to acquire a Return Material Authorization (RMA) number. All returns must be made within 60 days of delivery date. To ensure a return is processed quickly, an RMA number and a copy of the packing slip must be included with the shipment.
All returns should be sent to:
SuperMagnetMan
Attn: (RMA number)
2000 McCain Pkwy
Pelham, AL 35124
Shipping Errors or Damaged Product
Shipping cost for returns will be the responsibility of the customer unless the parts are incorrect or damaged upon arrival. For shipping errors or damage, SuperMagnetMan will bear the cost to replace the parts and the return shipment for the incorrect or damaged product. Custom orders cannot be returned unless the parts are incorrect or damaged. For details on returning parts, contact our shipping department at 205-621-8841 or email orders@supermagnetman.com for instructions.
Restocking Fee
Parts returned at the discretion of the customer will be subject to a 10% restocking fee. This policy applies only to orders received from our online store.
Packaging Notes
If possible, please ensure that all products are in their original packaging to avoid damage during the return shipment. The customer will be responsible for shielding the magnets properly so that the box or envelope is not magnetic at the surface. If a paper clip sticks to any side of the package more packing material (sheet metal, foam wrapping, peanuts, etc.) or a larger box will be required. If the parts are not properly protected, there is no guarantee the return will make it back to us in its original condition, and a refund will not be issued.
Refunds
If replacement parts are not needed, refunds will be issued for parts only once they are returned to our facility in the same condition they were shipped. This does not apply if the return is for incorrect or damaged parts.
It is important to us that you are happy with your order. Please contact us with any questions or concerns.
Thank you for your business!
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