Neodymium Ring Magnet OD130mm x H15mm | Hole 110mm N35
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Neodymium Ring Magnet – OD130mm x H15mm | ID110mm | N35
The Neodymium Ring Magnet – OD130mm x 15mm | ID110mm | N35 is an extra-large, high-performance rare earth ring magnet engineered for applications requiring exceptional magnetic strength across a wide circular surface. Manufactured from premium N35 grade neodymium (NdFeB), this powerful permanent magnet combines a large 130mm outer diameter, 110mm inner diameter, and 15mm thickness to deliver outstanding holding force, magnetic coupling, and positioning performance for industrial, commercial, scientific, and engineering applications.
With its substantial ring profile, this magnet is ideally suited for custom machinery, magnetic couplings, lifting systems, separation equipment, robotics, automation, research projects, and OEM manufacturing. The large central 110mm bore allows the magnet to fit around shafts, pipes, bearings, housings, or other cylindrical components, making it an excellent choice where a standard disc or block magnet cannot be used.
The magnet is axially magnetised through its 15mm thickness, meaning the north and south poles are located on the two large flat circular faces. This configuration provides a strong, concentrated magnetic field for secure attachment to ferrous materials while maintaining excellent stability across the entire magnetic surface.
Finished with a durable nickel (Ni-Cu-Ni) triple-layer coating, the magnet offers excellent protection against corrosion and everyday wear while maintaining a professional metallic finish suitable for demanding industrial environments.
Whether you're building specialised equipment, designing magnetic fixtures, developing prototypes, or integrating powerful magnets into industrial systems, the OD130mm x ID110mm x 15mm N35 Neodymium Ring Magnet delivers exceptional magnetic performance and long-term reliability.
Key Features
- Premium N35 grade neodymium rare earth magnet
- 130mm outer diameter
- 110mm inner diameter
- 15mm thickness
- Large ring design with central bore
- Axially magnetised through the thickness
- Powerful magnetic field across both flat faces
- Durable nickel (Ni-Cu-Ni) plated finish
- Permanent magnet with long-lasting magnetic strength
- Suitable for industrial, commercial, OEM, and research applications
Common Applications
- Magnetic couplings
- Industrial machinery
- Automation systems
- Robotics
- Magnetic separation equipment
- Precision positioning systems
- Scientific research
- Laboratory equipment
- OEM manufacturing
- Custom engineering projects
Ideal For
- Engineers
- OEM manufacturers
- Industrial designers
- Automation specialists
- Robotics developers
- Research laboratories
- Universities
- Scientific institutions
- Machinery manufacturers
- Product development teams
Why Choose a Large Neodymium Ring Magnet?
Neodymium magnets are the strongest commercially available permanent magnets, making them ideal for applications requiring maximum magnetic performance in a compact assembly. The N35 grade provides an excellent balance of magnetic strength, durability, and cost-effectiveness for a wide range of industrial and engineering applications.
The 130mm outer diameter combined with the 110mm central hole creates a large magnetic ring that can be integrated around shafts, pipes, bearings, rollers, or custom mechanical components. This design allows engineers to create efficient magnetic systems where conventional disc or block magnets are unsuitable.
The magnet's axial magnetisation ensures a powerful magnetic field across the two flat faces, making it ideal for magnetic clamping, holding, positioning, separation, and coupling applications. Combined with its corrosion-resistant nickel coating, this ring magnet delivers reliable long-term performance in demanding environments.
Technical Specifications
- Product Type: Neodymium Ring Magnet
- Material: Neodymium (NdFeB)
- Magnet Grade: N35
- Shape: Ring
- Outer Diameter (OD): 130mm
- Inner Diameter (ID): 110mm
- Thickness (Height): 15mm
- Magnetisation: Axially Magnetised (through the 15mm thickness)
- Coating: Nickel (Ni-Cu-Ni)
- Reusable: Yes
- Application: Holding, coupling, positioning, magnetic separation, automation, and custom engineering
Please Note
This is a very powerful neodymium magnet and should be handled with extreme care. Due to its size and magnetic strength, it can attract steel objects or other magnets with considerable force, creating pinch hazards and the potential for equipment damage.
Actual magnetic performance will vary depending on the thickness and condition of the mating steel surface, air gap, alignment, operating temperature, and application design.
Keep this magnet away from pacemakers, medical implants, magnetic storage media, precision instruments, and sensitive electronic equipment.
Neodymium magnets are hard but brittle and may chip or crack if allowed to collide with other magnets or steel surfaces. Do not drill, cut, machine, or subject the magnet to heavy impact after manufacture. Use appropriate lifting methods and personal protective equipment when handling large magnets.
Typical Physical Properties
NB: Ranges are indicative for product category, please check individual products for specic values within that range.
Production Flow Diagram
Demagnetization Curves
Surface Treatment
The most common coating for Neodymium magnets is Nickel + Copper + Nickel (Ni + Cu + Ni). This coating offers the magnet relatively good protection from corrosion and passive applications. If the magnet will be exposed to moisture or liquid then consider the use of an organic coating such as Epoxy. A hard wearing coating, Epoxy is suited to applications where the magnet will come under some friction or knocking.
Range and Tolerance
Magnets are readily available in Blocks, Discs, Cylinders & Rings. We specializes in the supply of short-run prototype magnets including Arc Segments, various magnetic orientations etc. If you need a magnet size that we don't carry in stock, submit a Design-a-Magnet enquiry for a quote on your custom magnet design.
Magnetic Properties
Neodymium magnets are offered in several different grades. The first section N30-54 has an operating temperature of up to 80 degrees. Most of our stock only goes up to N38. The second section, denoted with the "M" prefix after the grade has an operating temperature 100 degrees. After this the grades are "H", "SH", "UH" & "EH". In order for the magnet to withstand a higher operating temperature, during production more of the raw material PrNd is incorporated as these elements have a naturally occurring resistance to high temperatures.
Returns Policy
If you are not entirely satisfied with your purchase, we're here to help.
We have a 30 Day Returns policy at Frenergy Magnets. You may return your item within 30 days of receiving it to receive a refund.
The product/s must be unused and in the same condition you received them in. Please contact us at info@frenergy.com.au to initiate the returns process.
The buyer is responsible for the cost of returning the order.
