Neodymium countersunk magnets are functional permanent magnets. These magnets have a countersunk hole so they can be easily fastened to a surface using matching screws. Neodymium countersunk head magnets are available as ring magnets, block magnets and curved magnets.
Countersunk mount magnets have a countersunk hole and a high strength magnet in a mild steel nickel plated cup. Accommodates standard flat head screws. When secured to the product, the screw head is flush with or slightly below the surface. The magnetic retention is concentrated on the work surface and is significantly stronger than a single magnet. Non-working surfaces have little or no magnetism.
GP Magnets provides powerful, long lasting and inexpensive arc neodymium magnets for your motors and magnetic assemblies.
Material: NdFeB, rare earth NdFeB arc magnets
Technology: a new type of sintered NdFeB magnets Process and equipment, such as band casting, HDDR technology.
Magnetic properties: A. High coercivity
B. (BH)max from 33 to 53 MGOe.
C. Maximum operating temperatures up to 230°C.
Grades: N33-N52, 33M-48M, 33H-48H, 30SH-45SH, 30UH-38UH, 30EH-35EH
Shape: Arc, Tiles, Segment, Disc, Cylinder, Ring, Square, Block, Rod, Cube, Trapezoid and Customized shapes
Size: 3mm, 5mm, other sizes can be customized
Coating: NI, NICUNI, Zn, NiCU-Gold, copper, Epoxy, NICU-Epoxy, chemical, propylene, etc.
Applications: Sensors,motors,filter automobiles,magnetics holders,loudspeakers,wind generators, medical equipments, etc.
| Dimension range(mm) | 0.5-3 | 3-6 | 6-30 | 30-120 | 120-400 |
| Min. (mm) | ±0.05 | ±0.05 | ±0.1 | ±0.15 | ±0.2 |
| Standard(mm) | ±0.1 | ±0.1 | ±0.2 | ±0.3 | ±0.5 |
The magnetic orientation of a neodymium sinkhole magnet depends on its shape and your requirements. Most of the magnets of general shape can be magnetized axially or radially. While special shaped magnets such as curved magnets have four magnetization directions to choose from.
| Material | Remanence(Br) | Coercive Force(Hcb) | Intrinsic Coercive Force(Hcj) | Max. Energy Product(BH Max.) | Working Temperatures | |
|---|---|---|---|---|---|---|
| Serial NO. | Grade | Kilogauss | Kilooersted | Kilooersted | MGOe | ℃ |
| N | N30 | 10.8-11.2 | 9.8-10.5 | ≥12 | 28-30 | ≤80 |
| N33 | 11.4-11.7 | 10.3-11.0 | ≥12 | 31-33 | ≤80 | |
| N35 | 11.7-12.1 | 11.0-11.3 | ≥12 | 33-35 | ≤80 | |
| N38 | 12.2-12.6 | 11.0-11.6 | ≥12 | 36-38 | ≤80 | |
| N40 | 12.6-12.9 | 11.0-11.6 | ≥12 | 38-40 | ≤80 | |
| N42 | 13.0-13.3 | 11.0-11.6 | ≥12 | 40-42 | ≤80 | |
| N45 | 13.3-13.7 | 11.0-11.6 | ≥12 | 43-45 | ≤80 | |
| N48 | 13.6-14.2 | 11.0-11.6 | ≥12 | 45-48 | ≤80 | |
| N50 | 14.1-14.5 | 10.4-11.4 | ≥11 | 48-50 | ≤70 | |
| N52 | 14.4-14.8 | 10.4-11.4 | ≥11 | 49.5-52 | ≤70 | |
| M | N35M | 11.7-12.1 | 11.2-11.5 | ≥14 | 33-35 | ≤100 |
| N38M | 12.2-12.6 | 11.4-11.7 | ≥14 | 36-38 | ≤100 | |
| N40M | 12.6-12.9 | 11.4-11.9 | ≥14 | 38-40 | ≤100 | |
| N42M | 13.0-13.3 | 11.4-11.9 | ≥14 | 40-42 | ≤100 | |
| N45M | 13.3-13.7 | 11.4-12.0 | ≥14 | 42-45 | ≤100 | |
| N48M | 13.6-14.2 | 11.4-12.0 | ≥14 | 45-48 | ≤100 | |
| N50M | 14.1-14.5 | 11.4-12.2 | ≥14 | 48-50 | ≤100 | |
| H | N33H | 11.4-11.7 | 10.3-11.0 | ≥17 | 31-33 | ≤120 |
| N35H | 11.7-12.1 | 10.8-11.4 | ≥17 | 33-35 | ≤120 | |
| N38H | 12.2-12.6 | 11.4-11.9 | ≥17 | 36-38 | ≤120 | |
| N40H | 12.6-12.9 | 11.4-11.9 | ≥17 | 38-40 | ≤120 | |
| N42H | 13.0-13.3 | 11.4-11.9 | ≥17 | 40-42 | ≤120 | |
| N45H | 13.3-13.7 | 11.4-11.9 | ≥17 | 43-45 | ≤120 | |
| N48H | 13.6-14.2 | 11.4-12.2 | ≥16 | 45-48 | ≤110 | |
| SH | N30SH | 10.8-11.2 | 10.1-10.6 | ≥20 | 28-30 | ≤150 |
| N33SH | 11.4-11.7 | 10.3-11.0 | ≥20 | 31-33 | ≤150 | |
| N35SH | 11.7-12.1 | 10.8-11.4 | ≥20 | 33-35 | ≤150 | |
| N38SH | 12.2-12.6 | 11.4-11.9 | ≥20 | 36-38 | ≤150 | |
| N40SH | 12.6-12.9 | 11.4-11.9 | ≥20 | 38-40 | ≤150 | |
| N42SH | 13.0-13.3 | 11.4-11.9 | ≥20 | 40-42 | ≤150 | |
| N45SH | 13.3-13.7 | 11.4-11.9 | ≥19 | 43-45 | ≤140 | |
| UH | N28UH | 10.4-10.8 | 9.8-10.2 | ≥25 | 26-28 | ≤180 |
| N30UH | 10.8-11.2 | 10.1-10.6 | ≥25 | 28-30 | ≤180 | |
| N33UH | 11.4-11.7 | 10.3-11.0 | ≥25 | 31-33 | ≤180 | |
| N35UH | 11.7-12.1 | 10.8-11.4 | ≥25 | 33-35 | ≤180 | |
| N38UH | 12.2-12.6 | 11.4-11.9 | ≥25 | 36-38 | ≤180 | |
| N40UH | 12.6-12.9 | 11.4-11.9 | ≥25 | 38-40 | ≤180 | |
| EH | N28EH | 10.4-10.8 | 9.8-10.2 | ≥30 | 26-28 | ≤200 |
| N30EH | 10.8-11.2 | 10.1-10.6 | ≥30 | 28-30 | ≤200 | |
| N33EH | 11.4-11.7 | 10.3-11.0 | ≥30 | 31-33 | ≤200 | |
| N35EH | 11.7-12.1 | 10.8-11.4 | ≥30 | 33-35 | ≤200 | |
| N38EH | 12.2-12.6 | 10.8-11.4 | ≥30 | 36-38 | ≤200 | |
| AH | N30AH | 10.8-11.2 | 10.1-10.6 | ≥35 | 28-30 | ≤240 |
Neodymium Countersunk magnets are the strongest type of permanent magnets, making them suitable for heavy-duty applications where high magnetic force is required.
NdFeB magnets are highly resistant to demagnetization and can retain their magnetic properties for a long time.
Due to their compact size, neodymium magnets can be used in a wide range of applications, including industrial, commercial, and consumer products.
Compared to other types of strong magnets, neodymium magnets are relatively inexpensive, making them a cost-effective solution for many applications.
Neodymium magnets have a high energy density, meaning they produce a strong magnetic field in a small space. This makes them ideal for applications where space is limited.
NdFeB magnets can be small in size yet still have high magnetic strength, which makes them useful in applications where space is limited.
Neodymium magnet plating and coating can be better adapted to some harsh environments, such as ultra-low temperature, high temperature and humid environment.
GP Magnets is a leading manufacturer of high-quality neodymium magnets. With over 15 years of experience in the industry, we have established ourselves as a reliable and trusted source for magnets of all shapes and sizes.
Our extensive experience in optimizing production management allows us to offer high quality products at much lower prices than our competitors.
We have been in the neodymium magnet industry for 15 years. We have a low turnover of highly skilled teams of workers, many of whom have been with us for more than 10 years. Our ISO, MSDS and other certifications prove our commitment to quality.
We have experience in docking large purchases while valuing orders from small and medium-sized businesses, and we are happy to help start-up companies grow, not just as business, but as partners.
The final inspection is done in-house. Our quality control team has more than 10 quality control engineers and quality control equipment, who do nothing but final inspection of all our products before shipment.
We can produce custom sizes and shapes, quality, materials and packaging. We can easily meet all customer requirements outside of product specifications.
We will never promise to deliver an order on an unreasonable schedule just to close a sale. Our customer support team will provide you with a delivery schedule prior to any purchase agreement.
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