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Large round magnet with holes is a kind of magnet with a large diameter and with holes, which can be used in many places, today this article will introduce to the types of round magnets with holes, including the type of shape, the type of material, as well as how to choose, what are the uses.
Comparison of commonly used materials and performance of large round magnets with holes
NdFeB material: the strongest magnetic force, suitable for high-performance applications, such as motors, sensors, industrial adsorption equipment, but the high temperature resistance and corrosion resistance is poor, the need for surface coating anti-oxidation.
Samarium Cobalt: the magnetic force is slightly inferior to NdFeB, but the high temperature resistance is good, can be used for higher than 250 degrees Celsius above environment, suitable for aerospace, military and high temperature environment.
Ferrite material: weaker magnetic force, but low cost, corrosion resistance, suitable for speakers, micro-motors and other low-cost applications.
Neodymium ring magnet with large inner hole, also known as neodymium magnetic ring
The above 3 types are the most mainstream magnet application materials in the current market. Depending on the application requirements, the magnet can be customized in terms of outer diameter size, hole size, hole location, and thickness.
The shape types of large circular magnets with holes can be divided into center holes, offset holes (holes not in the middle), multiple holes, and side holes (with certain thickness requirements, too thin is not acceptable) according to the design of the holes
Large Diameter Round Magnet with Countersunk Hole in Center 100mm
The holes can be straight or screw holes as in the picture above.
In terms of applications, perforated large circular magnets are mainly used in heavy industry, mechanical equipment, large speakers, medical equipment, rehabilitation equipment, magnetic levitation and other products.
As for how to choose, let me say a few points. It is necessary to select the appropriate magnet material and performance level according to the application scenario, and choose the appropriate hole position and size according to the installation method. Ferrite is suitable for scenarios with limited budget and low magnetic requirements, neodymium magnets are suitable for high-performance needs, and samarium cobalt is suitable for use in high-temperature scenarios.
Our company is a permanent magnet manufacturer, and we hope the above information can help you better understand perforated large circular magnets. If your project requires perforated large circular magnets, please feel free to contact us for a quotation and customized sample testing.
Sample case (also our company website)
This is a thin rectangular block neodymium magnet, the specific specifications are length 40mm, width 25mm, thickness 1.5mm, strong magnetic force, N35 grade, magnetized in the thickness direction, suitable for ceiling lamps, crafts, home furnishing, electronic products, can be matched with 3M back glue to use....
This is a small size ring rare earth magnet, N38M grade, the outer diameter of the ring is 11mm, the hole is 2mm, which is also relatively small, the thickness is 5mm, the surface is plated with bright nickel, this type of magnet is suitable for passing through some thin shafts....
This is a very hot neodymium round magnet size, diameter 10mm, thickness 2mm, in many areas can be applied, the only difference is that different customers choose the coating, performance level and temperature resistance performance on the difference, the magnet weighs about 1.2g....
This product is a bowl-shaped magnet, because its shape is like the rice we eat. It is processed into a concave shape on the basis of a circular magnet, which belongs to the special-shaped magnet category. Our company is good at processing various complex special-shaped neodymium magnets. Welcome to all over the world. Customer service....
This is a ring magnet with an outside diameter of about 2 inches, belongs to medium size, made of rare earth neodymium material, the hole in the center is 40mm, thickness 5mm, the customer chooses N38 grade,...
Product is a Y30 (C8) grade round ferrite magnet, the N pole has a pit, the surface magnetic field strength is about 1300 Gauss, the specific size is 18mm in diameter, 8mm in thickness, magnetized in the thickness direction, and the tolerance is ±0.1mm....
You are now browsing this is a 4 inch ceramic ferrite ring magnet, by the courage magnet manufacturers physical samples photographed, magnetic ring outer diameter 110mm, hole 50mm, thickness 6mm....
You are now browsing this magnet is the diameter of 80mm series of round rare earth magnets, the thickness of 10mm, nickel-plated surface, the thickness of the magnetization....
