Have you ever seen a stepped magnet? In fact, this type of magnet is also quite popular. It is mainly made of neodymium and is used in various fields. However, it is slightly difficult to process. Below is a detailed introduction to this type of magnet.
Basic definition of neodymium step magnets
Neodymium step magnets generally refer to neodymium iron boron magnets with different height variations on their surface, resembling steps in shape. Many customers also call them convex magnets, cap magnets, or large-small head magnets. We can simply understand them as two magnets of different diameters or widths stacked together.
Accompanying image shows the most common circular step neodymium magnets.

Neodymium step magnets come in a variety of shapes, each designed to meet the needs of different applications. The following is an introduction to several common types of neodymium step magnets.
Round Step Neodymium Magnets
As shown in the figure above, this is one of the most common step-shaped magnets, featuring a uniform circular outer edge. One end face of the magnet (typically the axial end face) is designed with a stepped protrusion, usually located at the center. The magnetic performance is generally recommended to be N38 grade or above.
Recommended reading: Neodymium step disc magnets [custom quote drawing]
Square Step Rare Earth Neodymium Magnets
Square step magnets feature four straight edges and a staircase structure, with a square base shape. The right angles naturally provide anti-rotation capabilities. Sample images are available for reference: N42 Grade Convex Step Square Nickel Plated Magnets SGS RoHS
Rectangular Stepped Neodymium Magnets
Rectangular stepped neodymium iron boron magnets are rectangular in shape with a regular outline. Based on the rectangular shape, one or more sides feature a stepped structure. The height and width of the steps can also be adjusted according to specific applications.
Sample: Heavy Duty Block Magnet With Stepped Edge For Fasteners 70x20x12mm
Ring Shaped Step Strong Neodymium Magnet
Ring-shaped stepped neodymium magnets are neodymium-iron-boron permanent magnets with a ring shape and a stepped surface structure, equivalent to a hole machined into a circular stepped magnet. They are particularly suitable for applications that require rotation around an axis or passage through an axis.
Sample delivery: Convex step round ring strong ndfeb magnet with hole in center
Semicircular Convex Step Magnets
Semi-circular stepped magnet is a neodymium-iron-boron permanent magnet with a semi-circular shape and stepped structure. It can be regarded as half of a circular stepped magnet. Its unique stepped design helps provide more stable magnetism and better positioning effects in specific installation spaces.
Sample delivery: Double half round convex neo magnet [Sales supply custom]
The above is the definition of stepped magnets and an introduction to five common shapes. The main purpose of stepped magnets is to provide more precise installation positioning and enhance magnetic concentration. The stepped design allows magnets to provide a stable magnetic field in a more limited space while improving the fitting accuracy between magnets and other components. They are widely used in magnetic connection devices.
China Neodymium And Ferrite Magnets Manufacturer & Supplier