Magnets have become sometimes irreplaceable because of the many functions they serve...both industrially and in the house.
In some cases, you might not only need a magnet. Due to the area of application, you might need a magnet with elasticity, flexibility, malleability, etc,. If you happen to be in such a situation, rubber magnets are the best, and possibly only, solution..
I'm sure you must have encountered rubber magnets unknowingly today: on the refrigerator, in your computer, etc.
By now, you would be asking...
Simply put, rubber magnets are a type of permanent magnet made by combining ferrite magnet that has been ground to powder, with synthetic rubber or polymer resin. The magnets are very malleable and can be twisted quite easily. Their flexibility also makes them easy to roll, bend, incise, punch, and ease the performance of several post-production processes on them without it breaking.
They come in sheets, and strips or can be extruded to form complex shapes like rolls, rings, squares, cylinders, and many other shapes. Extrusion, injection, and calendaring are used to form them. Their flexibility and malleability makes them have a wide range of both domestic and industrial applications such as in sensors, motors, and in many advanced equipment.
Some rubber magnets come with single-sided magnetic coating while others are double-sided.
Now that we know what rubber magnets are, it's important for you to know...
There are two major divisions of rubber magnets
The tiny particles of Isotropic rubber magnets are aligned in different directions. Hence, their magnetization axis is not in a single direction.
These magnets are less stronger than their anisotropic counterparts and cost less to produce.
They are used for refrigerator stickers, printed products and promotional items.
All the tiny particles of these magnets are aligned in one direction. And their magnetization axis is aligned in a single direction.
They are stronger but more costly to produce. However, they have a wider range of applications like in micro motors, computers, magnetic toys, and many more.
Some rubber magnets have a double-sided magnetic coating while others are single-sided.
Other types of rubber magnets include:
Rubber magnets manufacturers use two main methods for the manufacture of rubber magnets: extrusion and calendering. Extrusion is used to produce flexible magnets in the form of tapes. And calendering is used for flexible magnetic sheets.
Production of rubber magnets via extrusion, takes place in 5 major steps:
The raw materials - synthetic rubber, iron oxide, and ferrite material- are exposed to high temperatures (1350 degrees celsius) in an induction furnace. The result is a molten metal oxide.
In some circles, this process is known as calcination.
Under high pressure, the molten material is forced through a hardened die which is shaped like the required rubber magnet.
As the molten material flows through the die, it cools. Simultaneously, it is passed over a magnetising strip composed of a strong electromagnet which magnetises the strip.
Most flexible magnets have a magnetiser and non magnetised surface. The non magnetised surface can be laminated with an adhesive tape or a vinyl top layer, using a laminating machine. The lamination material can be in any color of your choosing.
The magnet is cut into the required length and rolled onto a rod (core).
Calendering is used for wide, flexible magnetic sheets which tend to be 610mm in width and 30 meters in length. It takes place in 5 stages. The stages are:
Just as in extrusion, the raw materials are heated together in an induction furnace, at 1350 degrees celsius. It is also called calcination.
The fundamental difference between extrusion and calendering lies in this stage. The molten material is forced through a series of rollers. As it cools down, it is converted into a flat sheet.
The sheet is magnetized with a strong electromagnetic field. The strong magnetic field is provided by an electromagnet.
The sheets are normally brown in color prior to lamination. They can be laminated with adhesives or vinyl. The lamination is responsible for the variety of colors.
The sheet is cut into required length and rolled onto a core.
Rubber magnets have some unique properties. They include:
Rubber magnets have a wide industrial application. It is also found in several household materials Some examples include:
In fact, the areas of applications are so wide to the extent that trying to list them all will not be feasible.
Most people use rubber magnets and rubber coated magnets to mean the same thing. Although it seems right, it's action is not correct.
Rubber coated magnets are simply pot magnets covered with a rubber encasing to protect the magnet from corrosion. On the other hand, rubber magnets are made by blending grounded ferrite magnets with rubber.
Another major difference is in their appearance. Rubber magnets come in sheets or rolls. But rubber coated magnets are essentially a pot magnet with a rubber coating….that's all.
A simple google search of the above question will turn up pages upon pages, filled with websites of several rubber magnet manufacturers.
To make matters worse, each of them claim to have quality rubber magnets. Hence, deciding which company to buy from can cause you a migraine- a very huge one.
So, where can you get guaranteed, quality rubber magnets?
Dailymag. That's the simple answer.
For over 15 years and counting, we have built a reputation of being the best professional rubber magnet manufacturer and supplier . Our brand continues to grow in leaps and bounds owing to our emphasis on quality products, and good customer relations. Our growth is evidenced in our revenue which is well over 30 million USD annually. We have customers all across the world who continue to make purchases owing to our quality.
By utilizing advanced technology and equipment, we continually churn out magnets that are quality, without any complaints from our customers.
As it's often said, a machine can't exist on its own: skilled workers are also needed. We have a large workforce composed of skilled professionals. As a matter of fact, we have a whole department made of 20 professionals that are in charge of researching and developing new machines and ground breaking technologies. As of the last count, they have developed over 20 patents.
We place you first. Our customers receive the highest priority.
There is a 24 hours customer service desk available to offer help in any way possible. Apart from that, there is a technical team to offer you technical guidance in any difficulty. For us, customers come first before profit. Hence, we ensure that quality is not compromised in a bid to make quick profit. To ensure quality, we have a long-standing relationship with bodies such as CE, Intertek, Bureau Veritas, and Lloyd's Register.
You should make an order today. Our customer service desk will send you a FREE quotation and guide you along your buying process. We also offer prompt shipping to any region of the world (we are also a premium magnet supplier). We have a large factory that's able to meet whatever volume you'll require.
Make your order today.