Electromagnet

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Henan Caipuli Machinery Equipment Co., Ltd is in the beautiful city of Jiaozuo. Through years of development, the company has specialized in manufacturing scrap metal processing equipment. Thanks to our strong technical strength, advanced test method as well as fully auxiliary equipment, the company kept increasing its market competitiveness.

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Our products which fall into several categories, alligator metal shear, hydraulic metal shear, briquetting press, heavy-duty baling shear, cardboard /wool/fabric/wastepaper/hay /drum baler, and large-scale shredder line. We have exported to Australia, Malaysia, South America, the Philippines, Russia, Vietnam, Iran, Ukraine, Palestine, and other countries.

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We promise not only to provide the buyer with qualified new products but also to provide high-quality services. We work closely with our customers to understand their needs and provide tailored solutions to meet their requirements. With our expertise in products, we can help you achieve your goals and bring your products to market.

NW5-50L/1 Lifting Electromagnet

Lifting Electromagnet is special equipment which utilizes the electric & magnetic physical quantity

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What Is A Lifting Electromagnet?

A lifting electromagnet is the use of electromagnetism to lift / handle ferrous magnetic materials. It's magnetic field is generated or produced by an electric current through the magnet.

What Material Can The Electromagnet Lift?

Lifting electromagnet matched with various cranes to provide ideal material handling solution for ferrous materials such as steel, iron, ship manufacturing, heavy machinery, steel warehouses, ports and railways field, etc. for cast ingot, steel ball, pig iron, machine chip, various kinds of steel scraps, return scraps, cropping, baling scraps and so on in foundry factories and iron powder in coal washeries. During slag disposal process, it can remove large size of iron at initial step. It can be used in waste steel recovery department and steelmaking workshop.

Steps to Operate a Lifting Magnet

Lifting and releasing loads with lifting magnets is easy in industries. As an operator, you will need to perform the following steps:

1)It is a safety requirement that the operator adjusts the magnet to the correct position and moves away. The magnetic flux is the only thing that exists right now.

2)When the ON button is pressed, electromagnetic energy is transferred from the rotor magnet to the one in the main body, which then lifts the objects. By doing so, the magnet can attract objects.

3)Once the load is at its destination, it needs to be moved by the operator.

4)To release the load in the right spot, the operator needs to press the OFF button.

5)Since the load does not fall off immediately if the operator presses the OFF button while moving it, this is completely safe.

How Are Lifting Electromagnets Used In Industry?

Lifting Electromagnet for Cranes (Electromagnetic Crane)
A lifting electromagnet mounted on a crane, is sometimes called an electromagnetic crane. Electromagnetic Crane is a kind of lifting device that uses electromagnetic mechanism to carry steel articles. The main part of the electromagnetic crane is the electrically switched lifting magnet. Once switched on, it can absorb and pick up, hold, transport ferrous materials to the designated place. Cut off the current, the magnetism disappears, and the steel stuff comes down. Electromagnetic crane is very convenient to use, but it must be used with the current.
It provides a crane operator with complete control of the magnet in various positions. Tens of tons of heavy iron, iron wire, nails, steel scraps and other kinds of steel materials, that cannot be packed or packaged, can be easily collected and transported by the electromagnet on a crane. It not only saves labor but also simplifies work. Lifting electromagnets for cranes are commonly used in steel mills, foundries, coil and pipe distributors, junkyard, shipyards, loading docks, warehouses, and other users of applicable steel products.

Lifting Electromagnet for Excavator
Electro lifting magnet can be used in any type of excavator by changing the bucket or the attachment placed at the boom end which is used to lift metal scraps, bundles, MS plates, and ferrous materials during loading, unloading, and material handling.
Excavator lifting electromagnet overcomes the problem of working in an open yard where overhead cranes cannot be used. The mounting fixture for an electromagnet further permits the excavator operator to operate the magnet more efficiently by preventing the magnet from swinging freely at the end of the lift crane boom. It also allows the crane operator to apply a compressive force to the electromagnet in order to compress the material that is to be picked up by the magnet.
The lifting electromagnet used on excavators for sorting out steel scraps is also referred to as an excavator magnet, scrap magnet, scrap handling magnet, scrap yard magnet, or junkyard magnet. All these aliases suggest the electric lifting magnet’s popularity in the steel industry.

Benefits of Using a Lifting Magnet

If you regularly lift heavy objects while working, you may want to invest in a lifting magnet. Lifting magnets are devices that leverage a powerful magnet to pick up and lift objects made of a ferromagnetic material. What are the benefits of using a lifting magnet exactly? Here are some benefits of using a lifting magnet:

Supports Heavy Loads
You can use a lifting magnet with heavy loads. Most lifting magnets consist of a neodymium magnet, which is one of the most powerful types of rare-earth magnets on the planet. Some of them can support loads weighing up to 1,000 pounds. Other lifting magnets can support loads weighing over 10,000 pounds. Regardless, lifting magnets that feature a neodymium or “neo” magnet are very strong.

Easier to Use Than a Hoist
Most workers will agree that a lifting magnet is easier to use than a hoist. Hoists can lift heavy objects as well. To use a hoist, though, you’ll need to install all the equipment and then connect the hoist to the object. A lifting magnet offers an easier solution. Placing the lifting magnet directly over the object — assuming the object is made of a ferromagnetic material — will lift it.

Toggle On and Off
While the name may suggest otherwise, permanent magnets don’t produce a permanent or constant magnetic field. Rather, many of them can toggled on and off. You can turn them on or off by pulling a lever. After lifting and moving an object, you’ll probably want to turn off the permanent magnet. Pulling the lever in the appropriate direction will deactivate the magnetic field so that the object is released.

Doesn’t Require Electricity
Assuming you choose a traditional permanent lifting magnet and not an electromagnet, you don’t have to worry about supplying it with electricity. Permanent lifting magnets don’t require electricity. They rely exclusively on the magnetic material, such as neodymium, from which they are made.

Improved Safety
For a safer workplace, look no further than a lifting magnet. Lifting magnets promote safety in many ways. First, they eliminate the need for manually lifting objects. Second, you can use a lifting magnet without ever touching objects.

How Does a Lifting Electromagnet Work?

An electromagnet is a piece of construction equipment designed to generate a magnetic field and is often used for lifting, picking up and handling ferrous materials such as steel plates or scrap. Lifting magnets can be divided into three categories: Hydraulic magnets, electric magnets or battery-powered electromagnets. At the basis of their operation there are different mechanisms that make them suitable for specific applications.
Hydraulic Electromagnets
In order to function, hydraulic lifting magnets must be connected to the hydraulic system of the machine to which they are installed. They do not require any electrical connection, which makes them extremely versatile and they can also be used in remote areas. This type of magnet is connected through pipes from the machine to the generator. When the oil of the machine flows, the magnet becomes magnetised; when the flow is interrupted, the demagnetisation occurs. These magnets are used for collecting ferrous materials in demolition and recycling sites as well as in scrap yards. Due to their size, they are often applied to heavy machinery such as excavators.

Electric Magnets
An electromagnet is a magnetic device consisting of a ferromagnetic core (usually made of mild iron) on which coils of electrical copper wire are wound. Those products use mains electricity to power the coils it contains and from which the magnetic field is generated.

Battery-Powered Magnets
The battery powered electromagnetic lifters are magnets powered by a battery which is installed on the machine. Therefore, their operation is closely dependent on the batteries from which they are powered. There are also magnets with built-in battery, which are independent, practical and versatile pieces of equipment that do not require any external power supply. They can be controlled through a radio remote control and, thanks to their programmable electronics, can be used with various magnetisation profiles. They are used in various sectors, such as construction and scrapping, and are designed to collect and move even small ferrous materials.

Selection of Our Permanent Manget Lifter

Model	Cold-state power(kW)	Current A (cold/hot state)	Overall dimension					Mass (kg)	Lifting capacity (kg)
			(mm)						(cold/hot state)
			A	C	F	E	G		Steel ball	Casting ingot	Turnings
MW5-50L/1	2.6	11.8/7.7	500	700	160	90	25	220	1200	220/130	80/65
MW5-60L/1	3	13.6/8.9	600	750	160	90	25	340	2000	290/170	95/80
MW5-70L/1	3.3	15/9.8	700	800	160	90	30	490	2500	380/200	120/100
MW5-80L/1	4	18/12	800	800	160	90	30	620	3000	480/250	150/130
MW5-90L/1	5.9	26.8/17.5	900	1090	200	125	40	800	4500	600/400	250/200
MW5-110L/1	7.7	35/22.8	1100	1140	220	150	45	1350	6500	1000/800	450/400
MW5-120L/1	10	45.5/29.5	1200	1100	220	150	45	1700	7500	1300/1000	650/500
MW5-130L/1	12	54.5/35.5	1300	1240	250	175	50	2010	8500	1400/1100	700/600
MW5-150L/1	15.6	70.9/46.1	1500	1250	350	210	60	2830	11000	1900/1500	1100/900
MW5-165L/1	16.5	75/48.8	1650	1590	370	230	75	3200	12500	2300/1800	1300/1100
MW5-180L/1	22.5	102.3/66.5	1800	1490	370	230	75	4230	14500	2750/2100	1600/1350
MW5-210L/1	28.4	129/84	2100	1860	400	250	80	7000	21000	3500/2800	2200/1850
MW5-240L/1	33.9	154/100	2400	2020	450	280	90	9000	26000	4800/3800	2850/2250
MW5-260L/1	35.6	162/105	2600	2100	450	280	90	10100	30000	6100/4900	3600/3850
MW5-280L/1	39	178/116	2800	2700	500	300	100	12450	34000	7100/5700	4150/3400
MW5-300L/1	41.6	189/123	3000	2300	500	300	100	14980	39000	8350/6700	5250/4100

What Materials Can Be Lifted With Magnets?

Lifting electromagnets, also known as lifting magnets, are mandatory tools for handling materials on construction sites, scrap yards, landfills and demolition sites. However, not all materials can be lifted by electromagnets. Iron, nickel, cobalt and many others can be lifted with magnets. Discover all the potential of our equipment and choose the most suitable for your needs.

Handling Bulk Materials and Lifting Steel Plates
Lifting electromagnets are work equipment which use electricity to generate the magnetic field and hold certain materials on the magnetised surface. Electromagnets allow all ferromagnetic materials to be lifted, moved and handled safely and conveniently. These materials include iron, nickel, cobalt and certain minerals such as magnetite. Lifting magnets are therefore mandatory in workplaces such as construction sites, demolition sites, scrap yards and recycling sites. Magnets can be used on excavators, forklifts and front loaders. They are designed for lifting small and large ferrous materials, lifting steel plates and handling scrap.

Electromagnets for Every Need
There are different types of lifting magnets with multiple functions, which can be adapted to the most diverse requirements. It is essential to choose the lifting magnet according to the context of use, the weight of the load to be lifted and the capacity of the magnet itself. In addition, it is important to consider the vehicle on which the magnet will be mounted and the availability of electricity on site. The most commonly used magnets include the following.
Hydraulic magnets: Hydraulic magnets are material lifting devices that typically feature a lifting chain, a quick-coupling plate or teeth to move debris and lift ferrous materials. They are ideal for demolition and recycling sites or scrap yards. Also, hydraulic magnets are versatile pieces of equipment that can be installed on several machines, loaders or excavators that are normally employed on construction sites.
Low-voltage battery-powered magnets: Battery-powered magnets are lifting equipment usually installed on excavators, loaders and truck cranes. They are powered, through a cable, by the batteries of the machines to which they are connected. Due to their light weight and versatility, they are perfect for collecting ferrous materials and cleaning yards.
Circular electromagnets: These conventional electromagnets are designed to collect and move ferrous materials, even of small size. They are usually powered by generators on board of the machines to which they are connected. There are several models available with different sizes and power levels.
Circular electromagnets with built-in battery: Perfect for collecting ferrous materials and moving scrap. They are independent pieces of equipment as they are powered by the battery inside the magnet itself. Furthermore, they can be controlled through a radio remote control and can be used with various magnetisation profiles.

Important Lifting Magnets Safety Rules Explained

1)It is important to read and understand all the safety instructions from the manufacturer’s manual before using any lifting magnet. They pose a potential danger to the workers if not handled properly.

2)Any substances that may be affected by a magnet need to be kept out of the operational area. These mainly include nickel, iron, cobalt, some naturally occurring minerals such as lodestone, and some alloys of rare-earth metals.
3)Some common injuries which occur when using lifting magnets include pinched, trapped or crushed fingers. Wearing protective gloves can help a long way in keeping the operator safe.

4)Two magnets accidentally colliding with each other can cause damage and lead to chipping and breaking of magnets owing to the exerted force and magnet size. This may also affect the eyesight and hence wearing protective eye gear is important.

5)It is important to place strong magnet warning labels next to the area where the lifting magnet is being used. This will caution the workers operating near the magnet. Lifting magnets should have warning labels when they arrive from OEMs.

6)Another important safety tip for workers is to never stand below any lifting device carrying a heavy load. There are chances of the load being dropped off resulting in serious injuries. A split-second power spike is enough to cause serious injury to workers when the load releases.

7)Another possibility of a dropped load is an oily surface in the lifting magnets that could attract wreckage that interferes with surface contact. Most of the times, workpieces are lifted from the conveyor belt or floor. So, there are chances that they may not be fully engaged with an overhead magnet. It may not be possible for a worker to detect this and hence keeping a safe distance is the best practice.

8)Other precautions with lifting magnets – Placing any electronic devices especially a cell phone close to lifting magnets can cause a critical data loss. Magnets can eliminate data from magnetic storage devices on the computer including floppy drives, hard drives, flash drives, and more.

9)Medical devices like surgically implanted intracranial aneurysm clips and pacemakers can be affected by a strong magnetic field. Workers with these medical devices are advised to keep away from the operational area.

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Frequently Asked Questions about Electromagnet

Q: What is magnet crane?

A: Also referred to as electromagnetic cranes, these cranes are used to handle and move metals like steel and iron. Magnet cranes can be found mostly in recycling plants and scrap yards. They operate using a magnetic field that is formed by an electric current passing through windings around the magnet. The magnet is turned on and off when needed by the electric current.The electrical current travels through an electromagnet that consists of an iron middle with a wire enclosed. These cranes have a simple job; moving metals from one area to another. The magnet picks up metals, moves them to where they are supposed to go, and the magnet is cut off, releasing the metals. A reliable power and automation cable is a necessity for these cranes because of the constant current that is running through, plus it’s frequently turned on and off and subjected to hard usage.

Q: Why large magnets are used by cranes in a scrapyard?

A: In scrapyards, cranes use extremely strong electromagnets, commonly called “junkyard magnets” to move scrap steel off the ground from one place to another.

Q: How do excavator magnets work?

A: The Magnet Generator in the excavator utilizes the hydraulic power available to the excavator. The flow and pressure of hydraulic oil are used to drive the generator to produce electricity, which is then used to produce magnetic power.

Q: How do lifting electromagnets work?

A: Each magnet is surrounded by a rotor. Positioning these two magnets together produces a magnetic flux that can lift metallic objects when they are oriented in the same direction. When the rotor is switched, the load is released because the magnetic field changes.

Q: Where are strong electromagnets are used for lifting?

A: Lifting electromagnets for cranes are commonly used in steel mills, foundries, coil and pipe distributors, junkyard, shipyards, loading docks, warehouses, and other users of applicable steel products.

Q: Are electromagnets used in lifts?

A: Electromagnets and magnetic devices are commonly used in the following types of lifts and elevation systems: Lifts. Goods and service lifts. Industrial lifts.

Q: How long do lifting magnets last?

A: High-quality lifting magnets and magnetic chucks can last many years, they're almost indestructible. They still need regular service and inspection, though—especially load lifting magnets. Only a regularly inspected lifting magnet can be considered 100% safe and yearly inspections are required by law.

Q: What are 2 ways you could increase the lifting power of an electromagnet?

A: Electromagnet is a soft iron core made into a magnet by passing electric current through a coil surrounding it. There are two methods by which we can increase strength of magnetic field are:
By increasing the number of turns of wire in the coil.
By increasing the current flowing the coil.

Q: What is the purpose of lifting magnets?

A: Lifting magnets are capable of offering versatility and flexibility in handling various types of ferrous materials such as plates, sheets, bars, or components. They can lift, handle, and transport equipment of different shapes, sizes, and weights, making them suitable for a wide range of material handling applications.

Q: What does the lifting power of an electromagnet depend on?

A: The strength of magnetic field of an electromagnet depends on: The number of turns of wire wound around the coil, and. The amount of current flowing through the wire.

Q: How can an electromagnet lift a metal?

A: A load-lifting electromagnet consists of a solenoid enclosed in a shape-specific conductive wire. As electric current "flows" through the coiled wire, a magnetic field develops magnetizing the metal and by means of this magnetic field, the loaded item is held.

Q: How do you store lifting magnets?

A: The storage place should be an anti-flammable, explosion-proof, dust-proof, and anti-strong magnetic field. A ventilated place, while preventing liquid and metal particles from entering the controller is preferable.

Q: What makes electromagnets stronger?

A: An electromagnet is stronger if there are more turns in the coil of wire or there is more current flowing through it. A bigger bar or one made of material that is easier to magnetize also increases an electromagnet's strength.

Q: What is the physics of lifting magnets?

A: The generation of magnetic force varies for each magnet type. Permanent lifting magnet – Has a block with the main body and a rotor. It contains 2 magnets in the main body and rotor each. These 2 magnets, when positioned in the same direction, produce magnetic flux that reaches the metallic objects to be lifted.

Q: What is the test for lifting magnets?

A: Proper breakaway testing of a lift magnet will determine the maximum lift capacity of that magnet under ideal conditions. The outcome of the test allows the operator/owner of the lift to determine if the magnet meets the rated Working Load Limit (WLL) or lift capacity as designed by the manufacturer.

Q: Can an electromagnet be turned on and off?

A: An electromagnet is a kind of temporary magnet. It can be turned on or off. When it is connected to an electric current, an electromagnet has a magnetic field.

Q: How strong is a lifting magnet?

A: Lifting magnets are strong. They aren't ordinary ceramic magnets. Rather, they are neodymium magnets that, like all neodymium magnets, are quite powerful. Some lifting magnets have a lift rating of 660 pounds, whereas others have a lift rating of 1,320 pounds, 6,600 pounds or even 13,200 pounds.

We're well-known as one of the leading electromagnet manufacturers and suppliers in China. If you're going to buy high quality electromagnet made in China, welcome to get more information from our factory. Also, customized service is available.

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