Pot Magnet
Your Professional Pot Magnet Supplier！
Established in 2003, Hesheng Magnetics is one of the earliest enterprises engaged in the production of neodymium rare earth permanent magnets in China. We have a complete industrial chain from raw materials to finished products.we have become the leader in the application and intelligent manufacturing of neodymium permanent magnets field ,after 20 years development,and we have formed our unique and advantageous products in terms of super sizes, magnetic Assemblies,special shapes, and magnetic tools.
A pot magnet is a permanent magnet (often neodymium or ferrite) encased in a steel shell (or "pot") designed to maximize holding power and durability. By concentrating the magnetic field onto one face, it provides high clamping force on ferrous surfaces while protecting the magnet from damage.
Product Specification
We offers the following product specifications：
|
Parameter |
Details |
|
Product Name |
High-Temperature Neodymium Magnets (Heat Resistant Grade) |
|
Standard Grades |
N38 |
|
Maximum Operating Temperature |
80 ℃ |
|
High-Temp Remanence (Br) Retention |
<80°C (Measured per IEC 60404-8-1) |
|
Core Material |
High-purity NdFeB with Dysprosium/Terbium grain boundary diffusion |
|
Coating for High Temp |
Nickel-Copper-Nickel (Ni-Cu-Ni) 15-20µm, Epoxy (for electrical insulation) |
|
Intrinsic Coercivity (Hcj) |
≥ 25 kOe (UH Grade), ensuring resistance to demagnetization |
|
Temperature Coefficient of Br |
-0.11 to -0.09 %/°C (Superior to standard N grades) |
|
Dimensional Tolerance |
±0.05mm (Precision ground for thermal assembly) |
|
Compliance & Testing |
IATF16949, AEC-Q200 simulation, extended thermal aging tests |
Product advantages
More Magnetic Strength with Small Size:
The steel housing concentrates magnetic force on one side and increases the holding power dramatically.
01
Cost Saving:
Due to the super-strong magnetic force, it can use fewer rare earth magnets and reduce the magnet cost.
02
Durability:
Neodymium magnets are very brittle, steel, or rubber covering can protect them.
03
Mounting Options:
Pot magnets can apply to many accessories, so they can work with different mounting options.
04
Material
Neodymium pot magnets:
These magnets deliver the most power in terms of size and are ideal for heavy-duty applications.
Samarium Cobalt pot magnets:
With similar strength to Neodymium, these magnets perform better at high temperatures.
Ceramic pot magnets:
A more affordable and less powerful option, perfect for light to medium-duty tasks.
Alnico pot magnets:
Their performance varies based on shape, size, and design, but they excel in high-temperature applications.
Structure
A typical pot magnet has only one surface which exerts a magnetic field, thereby creating a concentrated clamping force. The magnetic face is exposed from the casing. When designing pot magnets, we design them to provide maximum pull force relative to the size of the magnet – to do this we design out air gaps from the magnetic circuit of the assembly. The ferromagnetic casing directs the magnetic field directly to the surface to be clamped to make a highly efficient.
Pot magnets allow a wide array of means of fixing them onto customer’s components due to variations in the ferromagnetic cup housing design. Pot magnets can include threaded bars (male threads), tapped threaded holes in the housing material (female threaded hole / boss / screwed bush / internal thread), countersunk holes for screws, counterbore holes for bolts and even blind ended for simply gluing into place – some versions are even precision ground on the outer diameter to allow an interference fit.
Application
Workholding in Manufacturing
One of the most common industrial uses of pot magnets is for workholding in manufacturing environments. Workholding refers to the process of securely holding a workpiece in place during machining or assembly.
Lifting Applications
Pot magnets are also widely used in lifting applications across various industries. Lifting with pot magnets involves using the magnetic force to safely and securely lift heavy ferrous objects, such as steel plates, machinery, or other metal components. These magnets are ideal for lifting tasks because they can provide a significant amount of lifting force without the need for mechanical tools.
Magnetic Clamps for Sheet Metal Handling
In industries such as sheet metal fabrication, pot magnets are often used as magnetic clamps to hold metal sheets in place during cutting, welding, or assembly processes. These magnetic clamps allow workers to quickly secure sheets of metal without the need for mechanical clamps or fasteners.
Magnetic Separation
Pot magnets play a significant role in magnetic separation, a process used in industries like mining, food processing, and recycling. Magnetic separation is used to remove ferrous contaminants from bulk materials, such as ores, grains, or powders, to ensure that the final product is free from metal debris.
Automotive and Assembly Line Applications
In the automotive industry, pot magnets are frequently used in assembly lines to hold metal parts in place during assembly or inspection. Pot magnets can be easily attached to metal components and used to secure them while workers perform tasks such as welding, fastening, or quality control inspections.
Custom
Sizes & Shapes
We offer neodymium magnets in sizes from 0.010" to large assemblies, with standard shapes like discs, blocks, rings, and arc segments. Custom shapes can be made to your specs.
Grades & Coatings
Available in grades N35 to N52. To prevent corrosion, magnets are coated with options like Nickel (Ni-Cu-Ni), Gold, Chrome, Copper, Epoxy, Teflon, and Rubber/Plastic.
Certifications
Package & Delivery
To prevent scratching and corrosion during shipping, each pot magnet is individually bagged. They are then packed in compartmentalized inner boxes (8-cell design) before being placed in sturdy export cartons. This multi-layer protection is proven for long-distance and air freight. We support sample requests for testing and offer flexible MOQs for production runs.
FAQ
As one of the most experienced pot magnet manufacturers and suppliers in China, we offer a wide range of products with superior quality. Please rest assured to wholesale cheap pot magnet for sale here from our factory. Customized orders are welcome.
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