What are circle magnets called?
Circle magnets are often called disc magnets because of their flat, round shape problem many face is knowing exactly what these magnets are named and used for.
Circle magnets are also known as disc magnets. They are permanent magnets made typically from neodymium (NdFeB), ferrite, or other magnetic materials. Their shape is flat and round, ideal for many applications requiring strong magnetic force in a compact form.

What are circle magnets called
What Defines A Circle Magnet?
From a practical standpoint, circle magnets are among the most common magnet shapes. Their flat, circular geometry allows them to be easily installed on flat surfaces or embedded in devices. They differ from ring magnets, which have a hollow center, but both are used in applications such as electronic devices, magnetic fasteners, motors, and sensors.
Circle magnets versus other magnet shapes
Characteristics Circle (Disc) Magnets Ring Magnets Block Magnets
Shape Flat and round Ring-shaped with a center hole Rectangular or square shape
Magnetic field direction Typically along thickness Complex, depends on pole layout Uniform along one side
Common use cases Electronics, craft, industrial Motors, sensors, loudspeakers Magnetic clamps, industrial use
Manufacturing ease High Moderate High
Their size matters greatly for magnetic force. The bigger the diameter and thickness, the stronger the magnet usually is. However, magnet grade also affects strength as NdFeB magnets from N35 to N52 have different maximum magnetic energy products.
Additionally, coating plays a role in durability, preventing corrosion especially in neodymium magnets prone to rust without protection.
MPCO Magnet Company, based in China, manufactures top-grade circle magnets including high-performance neodymium types. Their quality control ensures dimensional accuracy and strength consistency, suitable for American and European markets.
Understanding these terms and features helps you choose the exact circle magnet that fits your size and strength needs, avoiding weak or oversized magnets that waste cost and effectiveness.
Need reliable magnets? Weak or poorly sized magnets fail to hold securely. Our top-grade circle magnets offer precise sizing, ultra-strong hold, and durable materials — get the grip you need!
To choose the right size & strength for circle magnets, match the magnetic force to your task — use thicker discs for deeper reach and wider discs for larger contact area and higher pull force. For compact devices like sensors or motors, select small-diameter, high-grade neodymium discs (e.g., N52–N55) to maximize strength in tight spaces. Always factor in air gap and temperature; high-temp applications may need SmCo or heat-resistant NdFeB grades.
Half Circle Semicircle NdFeB Magnets N35
High Temperature Thin Semi-circle Magnets N40H
Powerful and Industrial NdFeB Semicircle Magnets N50
Zn Coated Micro NdFeB Circle Magnets N48H for Sports Watch