Permanent Magnetic Lifter

The Permanent Magnetic Lifter (PML) - a below-the-hook permanent magnetic lifting machine allows steel handlers to quickly and simply maneuver steel plate, pipes and rods without the use of slings, chains and blocking. In most applications, a two-man job could be accomplished with one man utilizing the lifting magnet. Being a permanent magnet, no external power is required, therefore eliminating the hazards associated with power magnets.

 

 

1. Compact and small structure that is easy to operate.
2. No need of a demagnetizer with high-performance permanent magnetic material.
3. Advanced magnetic circuit with a scientific balance design for strong holding force and almost zero remanences.
4. No need for any power support during operation.
5. The maximum pull-off force is about 3.5 times more than the rated lifting capacity.

 

 

 

 

There is no doubt that lifting magnets need to be powerful with a good weight-bearing capacity. They are made of specific magnetic materials such as iron alloys with precise configurations to achieve all the required properties. Also, they require an on and off feature. A permanent lifting magnet has a block with the main body and a rotor. It has two magnets in the main body and rotor each. These two magnets, when positioned in the same direction, produce magnetic flux that reaches the metallic objects to be lifted. When we change the direction of the magnet in the rotor, the load is released as there is no magnetic pull. An important point is, the adhesion of objects to the magnet should be absolutely close and tight, without any air trapped in between.

 

Permanent lifting magnets are different from electro-permanent lifting magnets. In the latter, an electric coil is wound around the magnet, which passes electric current to switch on the magnet. They also use magnetic energy to lift objects. The electric current is only used to switch the magnet on, and is disconnected later.

 

Model No.	Rated Lifting weight ( kg)	Safety Factor	Size(mm)
			L	B	H	R
PML100	100	2 and 2.5 times	135	63	75	160
PML200	200		170	67	80	160
PML400	400		180	92	94	215
PML600	600		240	120	115	240
PML1000	1000		300	136	138	270
PML1500	1500		340	150	140	270
PML2000	2000		390	160	168	368
PML3000	3000		480	160	168	368
PML5000	5000		570	230	490	490

Such as magnetic lifter 100kg, and magnetic lifter 600kg(permanent magnetic lifter 600kg) are popular models.

 

 

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.

 

 

Steel and Metal Industries

Lifting magnets find extensive use in steel mills, metal fabrication shops, and scrapyards. They simplify the lifting and transportation of steel plates, bars, beams, pipes, and other ferrous materials. By securely gripping and holding these heavy objects, lifting magnets streamline loading and unloading processes, increasing productivity and worker safety.

Construction and Demolition

In the construction and demolition industry, lifting magnets play a crucial role in handling metal debris, such as beams, rebar, and structural components. They enable efficient clearing and sorting of materials, reducing manual labor and expediting site cleanup. Lifting magnets also aid in the dismantling of structures, making it easier to remove metal components.

Recycling and Waste Management

Lifting magnets are instrumental in recycling and waste management facilities. They facilitate the separation and sorting of ferrous materials from mixed waste streams. By attracting and lifting metal objects, such as cans, appliances, and scrap metal, these magnets enable efficient material recovery and recycling processes, contributing to environmental sustainability.

Automotive and Manufacturing

The automotive and manufacturing industries rely on lifting magnets for various applications. They are used in assembly lines to hold and position metal components during production processes. Lifting magnets simplify the handling of engine blocks, chassis, body panels, and other heavy parts, improving workflow efficiency and reducing manual labor requirements.

Port and Shipping

Lifting magnets play a crucial role in ports and shipping yards. They enable the efficient loading and unloading of ferrous materials from containers, trucks, and ships. These magnets simplify the handling of steel coils, pipes, and other bulk materials, significantly reducing turnaround times and enhancing logistics operations.

Material Handling and Warehousing

Lifting magnets find applications in material handling and warehousing environments. They streamline the movement of metal components, molds, tools, and other magnetic objects. By securely gripping and lifting these materials, lifting magnets optimize operational efficiency, reduce manual labor, and improve overall productivity.

Scrap Metal Processing

In the scrap metal processing industry, lifting magnets are essential for sorting and processing large volumes of ferrous materials. They enable the efficient loading of scrap metal into shredders, crushers, or balers, maximizing production throughput. Lifting magnets aid in separating and lifting heavy metal pieces, contributing to the recycling and reuse of valuable resources.

 

 

When selecting a magnetic lifter, several key factors should be taken into consideration to ensure that it meets your specific needs and requirements:

 

Lifting Capacity

Determine the maximum weight that the magnetic lifter needs to lift on a regular basis. Choose a lifter with a lifting capacity that comfortably exceeds the weight of your heaviest loads to ensure safety and efficiency.

Magnet Type

Decide whether a permanent magnet or an electromagnet is more suitable for your application. Permanent magnets offer the advantage of being maintenance-free and energy-efficient, while electromagnets provide the flexibility of adjusting the magnetic force as needed.

 

Safety Features

Look for magnetic lifters equipped with safety features such as a locking mechanism to prevent accidental release of the load, audible and visual indicators to signal when the lifter is activated, and built-in safeguards to prevent overloading.

Size and Design

Consider the dimensions and design of the magnetic lifter to ensure compatibility with your workspace and the materials being lifted. Choose a lifter with a suitable surface area and shape to provide optimal contact and stability when lifting various objects.

Durability and Construction

Evaluate the build quality and materials used in the construction of the magnetic lifter to ensure durability and longevity, especially if it will be used in demanding industrial environments.

Application Specific Requirements

Take into account any specific requirements or constraints of your application, such as the need for corrosion-resistant materials for use in wet or outdoor environments, or the ability to lift objects with irregular shapes or surfaces.

 

 

Operating Instructions:

The workpiece surface (magnetic ferrous surface) and the magnet pole surface must be clean and smooth to achieve maximum efficiency. Ground and machined surface are ideal but a good clean surface on a ferrous or casting is acceptable provided a sufficiently flat area available for a good magnetic contract with the workpiece.

There should be no air gap/inclusions between the magnet pole and the job surface.

Place the magnet on the ferrous surface. Unlock the lever by pulling it out and then turn it to the "ON" position. Once it is made "ON", lock it by releasing it. For making it "OFF", please follow the similar procedure. (Do not place on wooden surface OR non-magnetic surface - it will not be possible to operate Lever to "ON" position).

Move the load smoothly, avoid shocks and collisions.

To place/drop the lifted material, operate the lever to the "OFF" position.

 

When not in use:

Apply Grease / Oil on Magnetic Poles surface to prevent it from rusting andPlace it on a thick wooden plank to safeguard its Magnetic poles from any damages, scratches, etc.

 

Safety Instructions:

Place the magnet on the Ferrous Surface in the "OFF" position and then make it "ON". Do not make it ON without keeping it on a ferrous surface.

The magnet is to be placed on the center, i.e. centering to the center of gravity of the load and then lift.

While handling the load, no person should be allowed in the immediate danger zone.

Ensure that the lever is made "OFF" after resting the load at the desired place in the balance position.

 

By having the ability to switch between an on and an off position, permanent magnetic lifters offer many of the benefits of electromagnetic lifters while removing some significant drawbacks. Electromagnets are beneficial because the ability to switch their magnetic field on and off makes them well suited to picking up material in one location it, transporting it, and then easily releasing it at a destination point. However, electromagnets cannot operate without a power supply, which imposes certain limitations on their use. In environments where wiring a power supply is impractical, or users require a magnetic lifter that is easily transported between different locations, we recommend using magnetic lifters.

 

The powerful neodymium magnets that power permanent magnetic lifters contain their strength completely within themselves-once you purchase a permanent magnetic lifter, it will work without requiring any future attention or maintenance. The combination of permanent magnets and manual switching means there are no operating costs associated with the use of permanent magnetic lifters.

 

Permanent magnetic lifters can be used for many different tasks. They are available in a multitude of sizes, meaning however heavy or large your load, Rayvanbo has a permanent magnetic lifter that is up to the challenge. Attaching heavy or awkward loads is no problem with permanent magnetic lifters. These lifters can be used to handle all kinds of applications, including changing tooling in production, carrying sheet and iron blocks, working in machine tools and oxygen cutting operations, and more.

 

 

1. How does a permanent magnetic lifter work?

A permanent lifting magnet has a block with the main body and a rotor. It has two magnets in the main body and rotor each. These two magnets, when positioned in the same direction, produce magnetic flux that reaches the metallic objects to be lifted.

 

2. What is the lifting power of permanent magnet?

The maximum capacity of permanent lifting magnets should be 2,000 kgs (4,400 lbs), over which it is hard to turn the handle from OFF to ON. (A few manufacturers make permanent lifting magnets of lifting capacity over 2,000 kgs. However, these big lifting magnets are not easy to turn the handles.)

 

3. What material is best lifted with a magnetic lifting device?

Permanent lift magnets are ideal for handling steel plates, die castings, forgings, etc. They eliminate the need for clamping devices, slings or chains. One person can perform operations previously calling for two or more people.

 

4. When moving the tube horizontally or at angles, how long can the magnetic lifter be used?

If you do correct maintenance, it can be used for many years.

 

5. How do you deliver the magnetic lifter?

We pack it in the poly-wood box and then ship it by international express or by sea.

 

Hot Tags: permanent magnetic lifter, China permanent magnetic lifter manufacturers, suppliers, factory, tower crane hoist, greenhouse lifting gear, dustproof hoist, chain hoist, overhead crane, electrically operated hoist