Use Neodymium Magnets to Replace Drilling and Welding

Pot Magnets Overview

Product classification:,

Product Introduction:

Pot magnet or cup magnet is named after its shape and they both refer to the same group of magnetic products. By gluing a round shape magnet into a steel pot/cup you get a prototype pot magnet, the structure of pot magnet forms a special magnetic circuit to concentrate magnetic field on working side to get much stronger holding force than a single magnet, the steel housing also protects brittle magnet materials typically NdFeB and Ferrite from breaking easily.

Purchase channel:

sales6@wzmagnetics.com

Knowledge of Pot Magnets

Pot magnets or cup magnets are named after their shape and they both refer to the same group of magnetic products.  By gluing a round shape magnet into a steel pot/cup you get a prototype pot magnet. Pot magnets, also known as cup magnets or round base magnets, are magnetic assemblies that consist of a permanent magnet encased within a ferromagnetic cup or pot.

The structure of pot magnet forms a special magnetic circuit to concentrate magnetic field on working side to get much stronger holding force than a single magnet. The steel housing also protects brittle magnet materials typically NdFeB and Ferrite from breaking easily.

 

Pot Magnets Overview

 

Pot magnet usually is a metal shell with a magnet, sometimes has filler between them. The magnet could be Neodymium(NdFeb), Ferrite, Alnico, and SmCo. After placed in the metal shell, the pot magnet could possess a strong pull strength and excellent field projection ability when contact with the workpiece directly.

 

What is a Pot Magnet?

A pot magnet is a permanent magnet encased in a steel shell. Which is sometimes called a pot, hence the name ‘pot’ magnet.  A permanent magnet emits a magnetic field without the need for any electricity.  Pot magnets are often used as magnetic bases and magnetic holders for large supermarket ceiling signs.

Pot magnet refers to a group of Magnetic Assemblies that uses a metal pot to realize Magnetic Circuit design.  So that magnetic energy is mostly concentrated on the edge of the metal pot to create strong holding force on this side.

 

Pot Magnets Overview

 

These simple-looking screw in magnets are carefully designed following the physical practice of utilizing magnetic field strength. By conducting the magnetic field strength via the steel pot.  An alternating-pole-pattern of; “S-N-S” or “N-S-N” is made on the holding surface of the pot magnet. As a result, it generates even higher holding force than using just magnet without steel pot.

Pot Magnets Overview

 

With this principal design, The rare earth pot magnets come in various sizes and basically bigger size means higher holding force.

Screw holes, countersunk holes, through holes, etc are made on pot magnets to make it easier for mounting jobs. Accessories such as thread bush and clips are added so that pot magnets can be used in even more working situations.

Pot Magnets Overview

 

The neodymium in these pot magnets could have a higher working temperature and intrinsic coercivity. The neodymium iron boron pot magnet can even be used as a Class I or Class II food grade device. The Pot Magnets With Hooks made of neodymium iron boron have the characteristics of small size and large holding force. When they are attached vertically on the surface of the object, the strength can be maximized. In addition to the built-in magnet and the external iron shell structure, its total pull strength also depends on the material, thickness, flatness, and friction of the surface to be attached.

Pot Magnets Overview

 

Variant of Cup Magnets

The NdFeb Magnet is much more expensive and produces even stronger force of the same size. The Ferrite version is a good choice when a user has a low budget. NdFeB pot magnet goes to working condition that requires high safety margin.

Based on the prototype pot magnet many variant magnetic products are made by adding mounting holes, threads, hooks, or other fasteners to meet different holding applications. They are then called Pot Magnet With Mounting Hole, Pot Magnet With Threads, Flat Pot Magnet, Pot Magnet With Cable Holder, Deep Pot Magnet, Magnetic Ceiling Hooks, etc. Some of them could look so different from the prototype pot magnet but as far as their core working principle does not change, we still call them “pot magnet”.

We coat rare earth pot magnets with zinc/galvanized, nickel, white or other colors powder painted, can also provide custom coatings to meet your environmental requirements.

Pot Magnets Overview

Item No.D
(mm)
d1
(mm)
d2
(mm)
H
(mm)
Force
(Kg)
Force
(N)
Force
(Lbs)
Weight
(g)
RBNB16163.56.5543996
RBNB20204.5876581312
RBNB25255.598141373023
RBNB32325.598232255036
RBNB42426.5119323137073
RBNB48488.51511.563617138110
RBNB60608.5151595931209260
M-RBNB757510.518181551519341429

 

Applications of Pot Magnets

Neodymium pot magnets are widely used in industry and our daily life, such as in workshops, factories, warehouses, and offices. It can also be used to make labels, posters, tools, Christmas wreaths, notes, etc.

When you want to hold something or fix something either permanently or temporarily like label, poster, tools, Christmas wreath, lights, etc.

Pot Magnets Overview

Item No.D
(mm)
H
(mm)
Force
(Kg)
Force
(N)
Force
(Lbs)
Weight
(g)
RCND22H22165.9581311.5
RCND31H31169892022.5
RCND43H4316101002237.5

 

More importantly, if you want to do it with ease, then you might want to choose from our wide selection of pot magnets. Pot magnets from WZ Magnetics Co., Ltd, the Pot Magnet Manufacturer and pot magnet supplier, come in different sizes, forces, and are mounted with different accessories to meet the application request as much as possible.

Pot Magnets Overview

Pot Magnets Overview

Item No.D
(mm)
H
(mm)
d1
(mm)
d2
(mm)
Force
(Kg)
Force
(N)
Force
(Lbs)
Weight
(g)
M-RBNC13134.53.56.644094
M-RBNC16164.53.56.6775176
M-RBNC202064.59.3101052313
M-RBNC252574.59161603624
M-RBNC323275.511313106939
M-RBNC404085.510.35150011273
M-RBNC6060158.5161121097246250
M-RBNC75751810.5191621587357480

 

How to Choose the Most Suitable Pot Magnet for Your Applications

Choosing the most suitable pot magnet for your applications involves considering various factors to ensure that the magnet’s specifications align with your specific needs.

1. Holding Force

The Priority for consideration goes to holding force – Determine how much magnetic strength is needed to achieve the desired holding or lifting force. This will depend on the weight or load that the magnet must support. Ensure that the magnet’s pull force matches or exceeds your application’s requirements.

Pot Magnets Overview

 

2.Select the Magnet Material:

Pot magnets are typically available with two main types of magnet materials:

(1). Neodymium (NdFeB) Magnets:

Neodymium magnets offer the highest magnetic strength relative to their size. They are suitable for applications requiring strong magnetic force but may be more susceptible to temperature variations.

Pot Magnets Overview

(2). Ceramic (Ferrite) Magnets:

Ferrite magnets are cost-effective and maintain their magnetic strength over a wide range of temperatures. They are suitable for general-purpose applications.

Pot Magnets Overview

3.Size and Shapes:

Consider the available space and the shape of the objects or surfaces the magnet will interact with. Pot magnets come in various shapes and sizes, including round, rectangular, and countersunk versions.

 

4. Attachment Method:

Determine how you plan to attach the magnet to your system or object. Some pot magnets have threaded holes or studs, while others may feature hooks, eyebolts, or other attachment points.

Pot Magnets Overview

 

4. Safety Concern

If you are about to hold a heavy object,  An extra 10% safe margin required. The higher the safer as long as it is within the budget.

What’s more, Pot magnets can exert strong magnetic forces and may pose risks, such as pinch hazards and attracting metal objects unexpectedly. Be aware of safety considerations and take appropriate precautions when handling and using pot magnets.

 

5. primary strengths or configurations

(1). Shallow Pot Magnets:

Shallow pot magnets have a relatively flat or shallow depth compared to their diameter. They are designed to provide a strong magnetic force on the surface where they are applied.

(2). Deep Pot Magnets:

Deep pot magnets have a greater depth or height compared to their diameter. This design allows them to generate a strong magnetic force further away from the magnet’s surface.

Deep pot magnets are commonly used in applications where you need to reach through non-magnetic materials to attract or hold onto ferrous objects. The extended reach makes them useful for tasks like lifting metal objects from a depth or holding items behind a non-ferrous barrier.These magnets can also be applied when a stronger magnetic force is needed but a shallow magnet would not provide enough reach or penetration.

The choice between shallow and deep pot magnets depends on the specific application and the distance or depth at which you need the magnetic force to be effective. It’s essential to consider factors like the required pull force, the thickness of non-magnetic materials (if any), and the available space when selecting between these two configurations.

Both shallow and deep pot magnets come in various sizes and magnetic strengths, allowing you to choose the most suitable option based on your needs. Additionally, customization options are often available from us, enabling you to tailor the pot magnet to your specific application requirements.

 

6. Strength of threaded neodymium magnets

1) Pot magnets are usually applied with two strengths.

One is vertical force in the vertical direction with stronger holding force;

One is shear force in the horizontal direction with smaller shear force .

 

2) The pull force of the pot magnet is also related to the roughness of the attached surfaces.

According to customer’s application requirements, our company can produce pot magnets with different sizes, strengths and different accessories.

 

Features of Round Custom Magnets

1) Small size and powerful function;
2) The strong magnetic force is only concentrated on one side of the pot magnet, and there is almost no magnetism on the other three sides, so the magnet is not easy to break;
3) The magnetic force is five times that of a magnet of the same volume;
4) The pot magnet can attract or move freely on the metal surface;
5) Permanent magnet, long service life.

Pot Magnets Overview

 

How is Neodymium Cup Magnets made?

We carry out Magnetic Quality Control of raw materials from suppliers. In our workshop, we produce metal pots with holes, thread bushes, clips, etc., and then glue the magnet and metal pot together to get the pot magnet.

It is not that any random combination of a magnet and a metal pot makes a good performance pot magnet. These pot magnets are out of magnetic circuit design and countless experiments to get their final specifications.

We must guarantee that either the magnet or the metal pot meets all the specifications, As we are ISO 9001- Certified Manufacturer , for which quality system play a major role.

Pot Magnets Overview

The adhesive we are using was chosen after many tests and comparisons and proved to be most effective in gluing magnets with metal.

We have 15 automatic assembly lines and 8 manual assembly lines to produce pot magnets. With the automatic assembly lines, all the assembly work is computer program controlled to ensure preciseness. With the manual assembly lines, we put in automatic units to cover those key steps to avoid possible man-made errors. We produce millions of pot magnets every year and by using automatic machines we keep stabilized outstanding quality level for all the pot magnets we produce.

Pot Magnets Overview

 

More You Want to Know Mounting Magnets

1. What Is The Strongest Magnet?

The strongest permanent magnets in the world are neodymium Magnets, they are magnetic material made from an alloy of neodymium, iron and boron to form the Nd2Fe14B structure.

 

2. What Is A Cup Magnet?

Cup magnets are magnets inset into steel cups that assist in mounting and increase their holding force. They are commonly used in holding applications where they are attached to a surface with a countersunk screw.

 

3. How Does A Pot Magnet Work?

A pot magnet works by attaching itself to ferromagnetic materials with the help of its magnetic field. Or to non-ferromagnetic materials with the help of fittings (such as studs and threaded holes) on the top of its steel shell. … The larger the pull force of the pot magnet, the more material it can attract.

Among all our pot magnets we mainly use Neodymium magnet and Ferrite magnet. Where Ferrite is a much weaker magnetic material than Neodymium .  But it is much cheaper than NdFeB.

So, to get the same holding force, Pot magnet using Ferrite has a larger diameter than that using NdFeB.  Or Selecting the same size of Ndfeb Magnets holding force greater than Ferrite Magents.

As a Professional Magnetic Solutions Provider, WZ Magnetics can customize different Pulling Force according to customers requirements. Welcome to Contact Us!

 

 

Pot Magnet Parameter Table

Pot Magnet SeriesTypes of Pot MagnetsProduct Structures
Countersunk Pot Magnets
NdFeB Flat Pot Magnet with Countersunk HoleNdFeB Flat Pot Magnet with Countersunk Hole
Ferrite Pot Magnet with Countersunk HoleFerrite Pot Magnet with Countersunk Hole
Plastic Cased Magnet with Countersunk in the CenterPlastic Cased Magnet with Countersunk in the Center
Oval Shape NdfeB Pot MagnetOval Shape NdfeB Pot Magnet
Pot Magnet With Mounting HoleNdFeB flat pot magnet with screw holeNdFeB flat pot magnet with screw hole
NdFeB pot magnet with mounting holeNdFeB pot magnet with mounting hole
NdFeB pot magnet with internal threaded holeNdFeB pot magnet with internal threaded hole structure
Ferrite flat pot magnet with through holeFerrite flat pot magnet with through hole structure
Ferrite flat pot magnet with clinch-nutFerrite flat pot magnet with clinch-nut
NdFeB flat pot magnet with through holeNdFeB flat pot magnet with through hole structure
Pot Magnet With ThreadsNdFeB flat pot magnet with internal threaded bushNdFeB flat pot magnet with internal threaded bush
NdFeB flat pot magnet with threaded studNdFeB flat pot magnet with threaded stud
Ferrite flat pot magnet with internal threaded bushFerrite flat pot magnet with internal threaded bush Structure
Ferrite pot magnet with male threadFerrite pot magnet with male thread Structure
Flat Pot MagnetsNdFeB flat pot magnetFerrite flat pot magnet Structure
Ferrite flat pot magnetFerrite flat pot magnet Structure
NdFeB flat pot magnet with stainless steel coverNdFeB flat pot magnet with stainless steel cover Structure
Pot Magnet With Cable HolderNdFeB flat pot magnet with cable holderNdFeB flat pot magnet with cable holder Structure
NdFeB magnetic cable tie holder, plastic blackPlastic magnetic cable tie holder black Structure
NdFeB magnetic cable tie holder, plastic WhiteNdFeB magnetic cable tie holder, plastic white
Deep Pot MagnetsNdFeB deep pot magnet with brass body, blue epoxyDeep Pot Magnet with brass body
NdFeB deep pot magnet with screw holeNdFeB deep pot magnet with screw hole
NdFeB deep pot magnet with threaded studNdFeB deep pot magnet with threaded stud
NdFeB deep pot magnet flatNdFeB deep pot magnet flat
NdFeB deep pot magnet with threaded neckNdFeB deep pot magnet with threaded neck

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