What Is a Magnetic Lifter?
A magnetic lifter, or lifting magnet, is a material handling device used to lift heavy ferromagnetic metals such as iron and steel. It holds the load through magnetic force from above, using permanent magnets, neodymium magnets, or electromagnets depending on the design. Unlike hooks, clamps, chains, or slings, a magnetic lifter attaches directly to the steel surface through magnetic contact.
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![Steel Permanent Magnetic Lifts]()
Steel Permanent Magnetic LiftsPermanent Magnetic Lifts Permanent Magnet Lifter also known as permanent magnet suction crane, magnetic crane, magnetic crane, lifting magnet, lifting permanent magnet, permanent magnet, etc. It has -
![Electro Lifting Magnet]()
Electro Lifting MagnetExcavator Lifting Electromagnet F or L ifting S crap Description Of Excavator Lifting Electromagnet F or L ifting S crap ： This series is special designed for lifting and transporting medium-thick -
![Electro Permanent Lifting Magnet]()
Electro Permanent Lifting MagnetElectro Permanent Lifting Magnet Description of Electro Permanent Lifting Magnet ： Lifting electromagnet is a kind of special DC electromagnet which is sucked as "armature". It is widely
Magnetic Lifter Technical Specifications
Specification of Permanent Magnetic Lifter
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Model |
Rated capacity(kg) |
Max tension(kg) |
Size(mm) |
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L |
B |
H |
R |
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GME-100 |
100 |
300 |
90 |
63 |
68 |
145 |
|
GME-400 |
400 |
1200 |
160 |
95 |
180 |
160 |
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GME-600 |
600 |
1800 |
220 |
115 |
125 |
230 |
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GME-1000 |
1000 |
3000 |
260 |
145 |
145 |
280 |
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GME-1500 |
1500 |
3750 |
310 |
145 |
145 |
280 |
|
GME-2000 |
2000 |
5000 |
340 |
160 |
165 |
410 |
Regular Size Of Excavator Lifting Electromagnet For Lifting Scrap
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Model |
GME84-9030L/1 |
GME84-10535L/1 |
GME84-14035L/1 |
GME84-17535L/1 |
GME84-21035L/1 |
GME84-24535L/1 |
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Overall Dimension
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A |
900 |
1050 |
1400 |
1750 |
2100 |
2450 |
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B |
300 |
350 |
350 |
350 |
350 |
350 |
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C |
900 |
960 |
940 |
940 |
920 |
980 |
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D |
350 |
400 |
500 |
700 |
800 |
900 |
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E |
110 |
110 |
110 |
110 |
110 |
110 |
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F |
180 |
180 |
180 |
180 |
180 |
180 |
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G |
32 |
32 |
32 |
32 |
32 |
32 |
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Weight |
185 |
330 |
430 |
510 |
600 |
720 |
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Power |
0.41 |
0.9 |
1.2 |
1.5 |
1.8 |
2.5 |
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Specification of Electro Permanent Lifting Magnet
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Item |
Electricity |
Power (KW) |
Elevating Capacity（ KG） |
Weight |
Overall dimension（ mm） |
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( A) |
Steel Ball |
Steel Ingot |
Cutting |
( KG) |
A |
B |
C |
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MW5-70L/1 |
15 |
3.3 |
2500 |
380/200 |
120/100 |
490 |
700 |
800 |
160 |
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MW5-80L/1 |
18 |
3.96 |
3000 |
480/250 |
150/130 |
620 |
800 |
800 |
160 |
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MW5-90L/1 |
26.6 |
5.85 |
4500 |
600/400 |
250/200 |
800 |
900 |
1090 |
200 |
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MW5-110L/1 |
35 |
7.7 |
6500 |
1000/800 |
450/400 |
1350 |
1100 |
1140 |
220 |
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MW5-120L/1 |
45.5 |
10 |
7500 |
1300/1000 |
600/500 |
1700 |
1200 |
1180 |
220 |
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MW5-130L/1 |
54 |
11.9 |
8500 |
1400/1100 |
700/600 |
2060 |
1300 |
1240 |
250 |
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MW5-150L/1 |
71.2 |
15.6 |
11000 |
1900/1500 |
1100/900 |
2830 |
1500 |
1250 |
350 |
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MW5-165L/1 |
75 |
16.5 |
12500 |
2300/1800 |
1300/1100 |
3200 |
1650 |
1590 |
370 |
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MW5-180L/1 |
102.4 |
22.5 |
14500 |
2750/2100 |
1600/1350 |
4230 |
1800 |
1490 |
370 |
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MW5-210L/1 |
129 |
28.4 |
21000 |
3500/2800 |
2200/1850 |
7000 |
2100 |
1860 |
400 |
|
MW5-240L/1 |
154 |
33.9 |
26000 |
4800/3800 |
2850/2250 |
9000 |
2400 |
2020 |
450 |
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What Affects Magnetic Lifting Capacity?
Steel Thickness
A magnetic lifter needs enough steel thickness to form a strong magnetic circuit. Thin steel plates may reduce the actual holding force, even when the lifting magnet has a high rated capacity.
Contact Surface Condition
Rust, paint, oil, dust, burrs, and uneven surfaces can create an air gap between the magnetic lifter and the steel. A clean, flat surface helps the magnet hold better.
Workpiece Shape
Flat steel is easier to lift than round, curved, or irregular parts. For round steel, the contact area is smaller, so the usable magnetic lifting capacity is usually lower.
Material Type
Magnetic lifters are made for ferromagnetic materials such as iron and carbon steel. Aluminum, copper, plastic, and many stainless steels cannot provide enough magnetic attraction.
Safety Factor
Rated capacity should not be treated as the only working limit. Load balance, lifting direction, vibration, and working conditions should also be checked before lifting.
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Industrial Lifting Magnets Comparison
| Type | Magnetic Source | Power Requirement | Control Method | Main Difference |
|---|---|---|---|---|
| Permanent Magnetic Lifter | Permanent magnet | No power needed | Manual handle | Simple structure, suitable for basic steel lifting |
| Electromagnetic Lifting Magnet | Electromagnet | Needs power during operation | Electric control | Magnetic force depends on continuous power supply |
| Electro Permanent Magnetic Lifter | Permanent magnet + electric switching | Power used for switching only | Electric magnetizing and demagnetizing | Keeps magnetic holding force after activation without continuous power |
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Common Applications of Lifting Magnets
Steel Plate Handling
Lifting magnets are often used to move steel plates during cutting, machining, storage, and loading. A magnetic lifter can hold the plate from above without drilling holes or using edge clamps.
Mold and Die Lifting
A heavy-duty magnetic lifter can be used for mold bases, die blocks, and machined steel parts. It helps lift flat steel surfaces where chains or hooks are not easy to attach.
Sheet Metal Handling
A sheet metal magnetic lifter is used for moving thin steel sheets or stacked plates. The plate thickness and surface flatness should be checked before lifting.
Scrap Metal Lifting
An electromagnetic lifting magnet is commonly used for scrap steel, metal pieces, and mixed ferromagnetic materials. It is often matched with cranes or handling equipment.
Warehouse and Workshop Handling
In warehouses and workshops, magnetic lifters help move steel blocks, plates, and semi-finished parts between machines, racks, and work areas.
Crane and Excavator Lifting Systems
Industrial lifting magnets can be installed on cranes, hoists, or excavators for steel handling projects. The magnet type and control system should match the lifting equipment.
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Custom Magnetic Lifter Solutions for Industrial Buyers
Custom Lifting Capacity and Magnet Structure
Great Magtech can customize magnetic lifters according to load weight, steel size, contact area, and lifting method. The magnet structure can be adjusted for plates, blocks, molds, or other ferromagnetic workpieces.
Custom Control System
For electric lifting magnets, the control system can be matched with the working process. Options may include manual control, electric control, magnetizing and demagnetizing control, or a system designed for crane operation.
Beam and Multi-Magnet Lifting Design
For long steel plates or larger workpieces, one lifting magnet may not be enough. A beam and multi-magnet lifting system can help spread the holding force across several contact points.
OEM Support for Equipment Manufacturers
As a magnetic lifter manufacturer, Great Magtech supports OEM equipment manufacturers and system integrators with drawings, technical communication, custom requirements, packaging, and long-term supply.
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FAQ
Q: Can a magnetic lifter lift stainless steel?
A: Only magnetic stainless steel can be lifted. Many stainless steel grades have weak or no magnetic response, so they are not suitable for a standard magnetic lifter.
Q: When should I choose a permanent magnetic lifter?
A: A permanent magnetic lifter is suitable when you need simple operation, no power supply, and regular handling of steel plates, blocks, or molds.
Q: When is an electromagnetic lifting magnet a better choice?
A: An electromagnetic lifting magnet is better for frequent lifting, scrap steel handling, or crane-based material handling where electric control is required.
Q: Do magnetic lifters need regular inspection?
A: Do magnetic lifters need regular inspection?
Q: Can lifting magnets be used in high-temperature environments?
A: Standard magnetic lifters have temperature limits. For hot steel or high-temperature workplaces, the working temperature should be confirmed before selection.
Q: What information is needed for a magnetic lifter quotation?
A: Please provide the load weight, material type, workpiece size, thickness, lifting method, working environment, and quantity. Drawings or photos are helpful for custom lifting magnets.
Q: How long can a permanent magnetic lifter be used?
A: Service life depends on use frequency, working environment, storage, and inspection. If the handle, body, lifting eye, or contact surface is damaged, the lifter should be checked before reuse.
Q: What should be checked before using a magnetic lifter?
A: Check whether the workpiece is magnetic, flat enough, and within the rated load range. Also check the lifting eye, handle, switch, cable, or controller before operation.
Q: Can workers stand under a load lifted by a magnetic lifter?
A: No. Workers should never stand or pass under a suspended load. The lifting area should stay clear until the material is safely placed down.
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