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Mag Spring®’s Top 10 High-Power Neodymium Pot Magnets deliver exceptional holding strength and stability for industrial, commercial, and mounting applications. Each magnet combines premium NdFeB material with a durable steel shell for maximum pull force and corrosion resistance. Certified pull-force reports are available upon request—including high-temperature testing up to 200°C—ensuring reliable performance in demanding environments.
Industrial clamping of workpieces, parts, signage
Mounting tools, lights or fixtures via magnetic hangers
Magnetic bases for jigs, precision machining, and positioning
Display and exhibit installations without drilling
Combined pot magnets deployment for ferrous particle separation in bulk flow
Pot magnets, also known as cup magnets or mounting magnets, are a type of magnetic assembly designed for industrial and commercial applications where high holding force and compact structure are required.
At MAG SPRING®, a leading China neodymium pot magnets manufacturer and magnetic solution provider, we design and produce a full range of pot magnets using high-performance neodymium (NdFeB) magnets, precision steel cups, and advanced bonding techniques to ensure maximum magnetic performance and durability.
A pot magnet is essentially a neodymium or ferrite magnet encased in a steel shell (“pot”), which redirects the magnetic flux to the active face of the magnet.
This design concentrates the magnetic field, dramatically increasing the holding force while protecting the magnet from impact or corrosion.
Unlike bare magnets, pot magnets offer a more practical and stable solution for mechanical mounting, lifting, and positioning tasks. They are widely used across manufacturing, assembly, automation, fixture, and display industries.
As one of the most trusted China neodymium pot magnets suppliers, MAG SPRING® delivers not only strong magnets but also reliability, consistency, and custom engineering support.
Our neodymium pot magnets are made with high-grade NdFeB materials (N35–N52, N35H–N42SH) that offer outstanding pull forces — often several times stronger than ordinary ferrite magnets of the same size. The steel housing focuses the magnetic flux on one side, achieving pull forces up to 1,000 N (depending on model and contact surface).
Each pot magnet is enclosed within a precisely machined or stamped steel cup, which not only amplifies the magnetic power but also shields the magnet from physical damage and demagnetization. We also provide optional stainless steel cups for humid or corrosive environments.
Available in internal thread, external thread, through hole, hook, and eyelet designs, our pot magnets can be used in hundreds of applications – from industrial tools and signage mounting to lighting, fixtures, and machine positioning.
We offer surface coatings such as Ni-Cu-Ni, Zn, Chrome, Epoxy, or Rubber, ensuring both aesthetic appeal and resistance to rust.
Special high-temperature grades can operate safely up to 250 °C, maintaining stable magnetic strength under demanding conditions.
👉 If required, Mag Spring® can provide pull force testing reports under high-temperature conditions (up to 200°C), ensuring reliable performance even in demanding thermal environments.
We understand every industrial application is unique. That’s why MAG SPRING® provides complete OEM & ODM customization:
Dimensions (Ø D, H)
Thread type & depth
Surface coating & material
Pull force requirement
Mounting accessories (hook, eyebolt, countersunk)
In a pot magnet assembly, the steel shell acts as a magnetic circuit that redirects the magnetic flux through the working surface, forming a closed magnetic loop.
This unique structure makes pot magnets several times more powerful than a single neodymium disc of the same size.
When placed against a ferromagnetic surface (steel, iron), the concentrated flux field creates a powerful attraction. However, even a small air gap, paint layer, or non-flat surface can reduce the pull force — a critical factor in practical applications.
For maximum performance:
Ensure full contact with clean, flat ferrous surfaces.
Avoid side shear stress — pot magnets are designed for vertical pull, not sliding load.
Keep magnets away from extreme vibration or impact.
Pot magnets are indispensable in industrial and commercial environments. Below are the most common uses for our neodymium pot magnets:
Machine Fixtures: Fixing, positioning, or holding components on assembly lines or CNC machines.
Lifting & Handling: Temporary lifting of ferrous materials such as steel plates, bars, or tools.
Mounting & Signage: Holding advertising boards, lighting systems, and exhibition setups without drilling.
Magnetic Bases: As detachable bases for measuring devices, cameras, or sensors.
Home & Workshop: Use as strong magnetic hooks or holders in storage and organization.
Magnetic Separation Systems: Integrated as part of industrial separators for removing iron contaminants.
From mechanical engineering to DIY applications, neodymium pot magnets provide unmatched strength, reusability, and versatility.
MAG SPRING® manufactures a wide variety of pot magnets to meet different operational needs.
| Type | Structure | Mounting | Typical Pull Force | Remarks |
|---|---|---|---|---|
| SWN-A | NdFeB + Steel Cup | Flat base | 10 N – 900 N | Standard pot magnet |
| SWN-B | NdFeB + Steel Cup | Internal thread | 20 N – 900 N | For mechanical mounting |
| SWN-C | NdFeB + Steel Cup | External thread | 30 N – 900 N | For suspension hooks |
| SWN-D | NdFeB + Rubber Coating | Countersunk | 5 N – 900 N | For delicate surfaces |
| SWN-E | NdFeB + Steel Cup+hook | Flat base | 10 N – 900 N | Hook Magnets |
🧩 Available Materials: Neodymium (NdFeB), Ferrite, SmCo, AlNiCo
🌡 Working Temperature: up to 250 °C for special items
🧷 Surface Coatings: Ni-Cu-Ni, Zn, Chrome, Rubber, Epoxy
⚙ Customization: Dimensions, thread type, coating, and packaging available upon request.
MAG SPRING® is a professional magnetic solution manufacturer based in Ningbo, China – a global hub for NdFeB magnet production.
With years of experience in magnetic assemblies and automation components, we combine engineering know-how, precision manufacturing, and global export expertise.
Modern production lines for pot magnets, magnetic separators, and magnetic assemblies
ISO 9001-certified quality system
Advanced measuring instruments (flux meters, pull force testers)
In-house tool design and CNC machining
We export to more than 50 countries and regions, including Europe, North America, and Asia.
With strong OEM/ODM capability, stable lead time, and responsive after-sales support, MAG SPRING® is your reliable long-term partner for neodymium pot magnets and other magnetic components.
Every batch of magnets is strictly tested for:
Pull force consistency
Dimensional tolerance
Temperature resistance if need
Corrosion test if need
Our technical team can also provide custom pull-force reports, material certificates, and RoHS/REACH compliance documents for your project.
Q1: What’s the difference between pot magnets and bare magnets?
Pot magnets use a steel cup to concentrate magnetic flux, providing 3–5× stronger pull force than a simple neodymium disc.
Q2: Can I use pot magnets in high-temperature environments?
Yes. MAG SPRING® offers high-temperature pot magnets that can withstand up to 250 °C depending on grade.
Q3: Are pot magnets suitable for side holding?
They are mainly designed for vertical pull. For horizontal loads, use mechanical support to prevent sliding.
Q4: Can you customize thread type or surface coating?
Absolutely. We can produce custom thread depth, countersunk holes, hooks, or eye bolts, and offer multiple coatings.
Q5: What’s your MOQ and delivery time?
Standard models: MOQ = 100 pcs; Delivery = 7–15 days depending on stock.
Custom models: lead time = 3–4 weeks.
Looking for a reliable China neodymium pot magnets manufacturer to support your business or project?
MAG SPRING® is ready to provide:
Standard and custom magnets
Competitive factory-direct pricing
Engineering assistance and design support
Global delivery with export experience
📩 Contact us today to request a quotation, or download our full Pot Magnet Specification PDF.
You’ll receive professional advice, quick response, and consistent quality – the hallmarks of MAG SPRING®.
SWN0 Series pot magnets are made from lathing copper cup and Neodymium magnets.Room working temp.
SWN1 Series magnets are made from lathing copper cup and Neodymiummagnets with female thread hole on back side. Room working temp.
SWN2 Series magnets are made from lathing steel cup and Neodymiummagnets, Zn coating, screwed bush on back side for hook. Room working temp.
SWN3 Series magnets are made from lathing steel cup and Neodymium magnets. Zn coating,room working temp.
SWN4 Series magnets are made from lathing steel cup and Neodymium magnets. Zn coating, male thread pin on back side for hook, room working temp.
SWN5 Series magnets are made from lathing steel cup and Neodymium magnets. Zn coating, with bore, room working temp.
SWN6 Series magnets are made from lathing steel cup and Neodymium magnets. Zn coating, counterbore, room working temp.
SWN7 Series magnets are made from lathing steel cup and Neodymium magnets.. Zn coating, female thread hole, filled epoxy, room working temp.
SWNA Series magnets are made from stamping steel cup and Neodymium magnets. with Ni coating, counterbore and plastic filled.Room working temp.
SWNB Series magnets are made from stamping steel cup and Neodymium magnets. with Ni coating, bore and plastic filled. Room working temperature
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SWNC Series magnets are made from stamping steel cup and Neodymium magnets. with male thread pin, Ni coating and plastic filled. Room working temperature.
SWND Series magnets are made from stamping steel cup and Neodymium magnets,with screwed bush, Ni coating and plastic filled. Room working temperature.
SWNH Series magnets are made from stamping steel cup and Neodymium magnets,with female thread, Ni coating and plastic filled. Room working temperature.
SWNO Series pot magnets are made from stamping steel cup and Neodymium magnets. with Ni coating and plastic filled. Room working temperature.
SWNP Series pot magnets are made from stamping steel cup and disc Neodymium magnets.
with female thread, Ni coating and Epoxy filled. Room working temperature.
SWNI Series pot magnets are Rectangular Pot Magnets, also named Channel Magnetswhich are made from stamping U shape steel and rectangular Neodymium magnets,with two counterbores, Ni coating. Room working temperature.
SWNI Series 2 pot magnets are Rectangular Pot Magnets, also named Channel Magnets.which are made from stamping U shape steel and rectangular Neodymium magnets,with one counterbore, Ni coating. Room working temperature.
SWNL Series magnetic hook which are made from NdFeB magnets and a swivel hook,. with Ni coating. Room working temperature.
SWNG Series magnetic hook which are made from NdFeB magnets and a swivel hook with Ni coating. Room working temperature.
Rubber Covered Pot Magnets Series
STA Series rubber covered magnets are made from NdFeB magnets and steel cupRubber covered,one counter bore. Room working temperature.
STB Series rubber covered magnets are made from NdFeB magnets and steel cupRubber covered, a screwed bush, Room working temperature.
STC Series rubber covered magnets are made from NdFeB magnets and steel cupRubber covered, a extra thread pin.Room working temperature.
STD Series rubber covered magnets are made from NdFeB magnets and steel cup,Rubber covered, a screwed bush, Room working temperature.
STP Series rubber covered magnets are made from NdFeB magnets and steel cup Rubber covered, a female thread. Room working temperature.
