The Ultimate Guide to Lifting Magnets
Lifting magnets are common equipment in many industries and businesses, from manufacturing to construction and repair to residential uses. If you're looking for the best lifting magnet supplier or manufacturer; there are several things you should know before selecting a company to buy from, including how much weight it can lift, the material it's made of, its warranty, and much more. Here's the ultimate guide on choosing a quality lifting magnet supplier or manufacturer.
What is a permanent lifting magnet?
A permanent lifting magnet is a type of magnet that uses the force of magnetism to lift heavy objects including blocks, steel plates, press molds, and machine components. They are also used to unload machines or transport vehicles with mechanical handling equipment. Unlike other types of magnets such as temporary lifting magnets or electro-permanent lifting magnets, they do not require electricity or an external power supply to function. These magnets are made from rare earth metals and are very strong hence can lift such heavy objects because they produce an external magnetic field that attracts ferrous materials like iron and steel.
How does the permanent lifting magnet work?
Permanent lifting magnets are made of strong permanent magnetic materials such as iron alloys and ferrite. There is an on and off feature for this magnet so that it can be turned on or off depending on the need for the magnet. When there is a powerful neodymium magnet near the surface, they will attract each other; while when they get away from each other; their strength will decrease. The construction of a permanent lifting magnet has two parts: the block (has the body) and a rotor. The main body contains two magnets while the rotor each contains one magnet which rotates around the main body.
If you change the direction of the rotor magnet, your load will be released. Reason? Well, no magnetic pull would happen if the poles were opposite to release the power between them. In other words, if they were both south poles facing up or both north poles facing up, then there would be nothing drawing them together; and releasing power would not happen. Remember; the adhesion of objects with permanent lifting magnets is a function of time, distance, and density.
Types of lifting magnets?
Normally, there are 3 types of lifting magnets.
1. Electro lifting magnets
This type of lifting magnet is made from electric power and magnetic energy. They're created of coils of wire containing electricity in them. You could adjust the strength of this magnet by changing how many current flows through its wires. The Moving charges in the coil create a strong magnetic field that pulls on objects with metal inside them (or other conductive materials).
One disadvantage of electromagnetic lifting magnets is that they need a lot of electricity to work which may be costly. Another downside is that these magnets can't attract or pull an object without being electrically powered.
2. Permanent lifting magnets
This type of lifting magnet is made with iron alloys and ferrite material. They're mainly employed to lift heavy blocks, steel plates, or bars. They hoist moving blocks of iron up and let them come down freely to cool off before starting the process again.
3. Electro-permanent lifting magnets
This is a kind of permanent magnet that combines the features of both electromagnet and permanent magnet. It uses electricity as well as magnetic properties to generate a stronger pulling force than either type of magnet alone. In some cases, it's more economical than the use of regular magnets due to its ability to operate for long periods without stopping because you don't have to change out your battery every now and then.
The structure of a permanent lifting magnet
Permanent lifting magnets are made with either ferrite or iron alloy materials. Its structure is a magnetic yoke shell, which consists of pieces of a high-performance permanent magnet, coupled with steel plates or coils inside the magnet. These magnetic poles will produce a strong magnetic field for lifting heavy objects. The purpose of this design is to increase the stability and service life of the permanent lifting magnet. The yoke shell contains many receiving cavities, into which several coil pieces can be inserted in any order so that the proper magnetic circuit can be obtained.
Applications of lifting magnet
A lifting magnet can be employed in many different applications including;
-Plumbing
A plumber will employ a lifting magnet as part of the process of installing a new toilet or sink. The plumber will use the permanent lifting magnet as a counterweight and then attach it to the underside of the object he is working on. A temporary magnetic bar may also be used, although this is not always necessary when working with light materials such as porcelain or plastic parts which are easily lifted by one person alone. Permanent lifting magnets, on the other hand, need no counterweights because they are attached to the bottom of whatever they're being used fbr and can lift much heavier objects without difficulty. A general rule of thumb is that lifting magnets should be able to handle four times more weight than what you want them to lift.
-Construction
Lifting magnets are heavily used in construction jobs where heavy tools or building supplies need to be lifted onto higher levels. These tasks are usually accomplished with the help of an overhead crane, but workers must have reliable safety measures put into place before anything is lifted up to ensure their safety from any potential accidents.
Permanently installed lifting magnets are often safer to use in these types of situations because they're anchored to a firm surface and cannot fall off if the worker becomes careless or drops something.
-Mining
Mines and quarries often employ lifting magnets to move heavy materials from one point in their facilities to another. Permanently installed lifting magnets are ideal for use in these types of situations because they ensure that workers never have to work under something too heavy fbr them alone. The risk of workers getting crushed or injured by a heavy object is also greatly reduced when lifting magnets are used. With installation done correctly, there is less chance of having a lifting magnet come loose from its fixed position and endangering those around it. It's easy to see why many mining operations rely so heavily on lifting magnets as part of their day-to-day operations.
-Shipping and transport
Any time a piece of cargo is too heavy for one person to lift, it's a good idea to use a lifting magnet. Overhead cranes can do an excellent job of helping transport objects over longer distances, but it can be difficult to maneuver them into place and expensive if they need to be rented or used on site. Permanent lifting magnets are generally lighter and easier fbr workers and managers alike because they're usually made from steel which makes them inexpensive compared with other materials.
-Manufacturing businesses
When it comes to manufacturing, lifting magnets are almost a necessity in many cases. Factory owners might use lifting magnets to lift large rolls of fabric and metal sheets out of storage containers and roll them down assembly lines for processing. In addition, permanently installed lifting magnets are often used in factories as a means of moving heavy goods from one room to another.
-Warehouses
Warehouses that keep heavy goods need a cost-effective way of moving items from one storage area to another. Overhead cranes can be effective, but permanently installed lifting magnets are often even more efficient because they're easier for workers and managers alike to operate.
What's the difference between different types of lifting magnets?
1. Permanent lifting magnets
permanent magnetic lifter are made with rare earth materials like ferrite. They do not require electricity to operate and can be used for both ferrous and non?ferrous metals. However; they need to be demagnetized after each use or they will lose their strength. Furthermore, permanent lifting magnets are more expensive than temporary ones and tend to break when dropped on the floor.
Pros
-Inexpensive
-Easy to use
-Lightweight
-No damage to the testpiece
Cons
-No control when it comes to Held strength
-Legs need area contact
-Needs to be recharged
2. Electro lifting magnets
These lifting magnets are powered by an electric current and come in various sizes. They can be used to lift any metal that is attracted by a magnetic force such as a horseshoe magnet.
Pros
-Easy to operate
-Versatile
-Compact
Cons
-Expensive to use
-Require frequent recalibration
3. Electro-permanent lifting magnets
These lifting magnets are powered by an electric current but also feature two coils of wire which make them more powerful.
Pros
-Easy to use
-Multipurpose
-Compact
Cons
-Costly to use
-Heavy
Steps to Operate a Lifting Magnet
Here is the step-by-step guide on how to use a permanent lifting magnet
-Position the magnet
You must adjust the magnet to the desired position before turning on the system. Make sure that the shaft is horizontal, not tilted to either side. Bring the magnet close enough to where you want it positioned before turning it on. Always wear gloves when handling these magnets because they can cause irreversible damage due to its strong magnetic force.
-Click the ON button
If you haven't clicked on your handheld control and turned it on, now is the time. This can be done by sliding your finger up and down until you reach ON. Once you have clicked the ON button, place your palm over it so that the power does not shut off again.
-Move the load
Now that you're set, take the load to its destination by moving it back and forth on the table. Continue this process until you've moved the entire load without any problems.
-Switch OFF button
Once you've successfully moved your load, turn off your handheld controller. To do so, press and hold down on your power button until it is switched off.
Safety tips for using a lifting magnet
Safety Instructions for Operate a Lifting magnet
You need to read and comprehend the safety tips before using the lifting magnet. The lifting magnet manufacturer normally supplies various types of lifting magnets for different purposes, such as flat?disc permanent magnetic liften round-disc permanent magnetic lifter lift magnets with steel plates, and so on. So you must familiarize yourself with the potential danger zone first and then use the right type of lifting magnet based on your purpose.
-Keep items that can be destroyed by magnets away
-Pay attention to your body position and distance of the lifting magnet when using it. Adjust your body and position according to your task requirement.
-Avoid colliding the magnets because this will lead to demagnetization and heat generation which in turn could cause severe injury.
-Lift magnets should not be used near power lines or high voltage wires because this may lead to electric shock hazards.
-When using lift magnets near combustible material like gasoline, alcohol, oil, or other chemicals, you have to pay close attention to avoid fire hazards.
-Never stand below a lifting magnet while it is moving items from one place to another.
-Avoid placing any electronic devices or metal objects in direct contact with lift magnets while they are operating. Metal objects can be severely damaged or destroyed by lift magnets. Lift magnets are also susceptible to damage if they come into contact with any kind of energy source (electrical current, laser beam, etc.)
- Medical devices can be destroyed by the strong magnetic field generated by lift magnets.
