Electromagnetic Gantry Crane | Single Girder Crane with Magnetic Chuck
Short Video Description
This video shows a single girder gantry crane with electromagnetic chuck designed for outdoor scrap handling, steel yards, metal recycling plants, fabrication areas and general ferrous material handling. The crane combines a single girder gantry crane structure with an electromagnetic lifting magnet to pick up and move steel scrap, iron pieces, plates and other ferromagnetic materials.
The single girder gantry crane, also called a single girder portal gantry crane or outdoor Goliath crane, travels on ground-mounted rails and uses a single welded main girder supported by A-frame gantry legs. An electric wire rope hoist or trolley carries the electromagnetic chuck, allowing the crane to handle ferrous scrap without using conventional lifting hooks for every load.
A single girder gantry crane with electromagnetic chuck is especially useful in scrap yards where steel scrap, iron blocks, steel plates, cutting waste and other ferrous materials must be loaded, unloaded, sorted and transferred between storage areas. The magnetic lifting system can improve handling efficiency when the material is suitable for electromagnetic lifting.
For an outdoor goliath crane with electromagnetic lifting magnet, the crane structure and magnetic system need to be designed together. Important parameters include crane capacity, magnet lifting capacity, span, lifting height, rail gauge, magnet diameter or dimensions, magnet dead weight, duty class, wheel load, power supply and working environment. The final electromagnetic chuck specification depends on the type, shape, density and condition of the scrap being handled.
Single girder gantry crane with electromagnetic chuck for outdoor scrap handling
Main Technical Specifications
| Item | Technical Specification |
|---|---|
| Crane type | Single Girder Gantry Crane / Single Girder Portal Gantry Crane / Outdoor Goliath Crane |
| Crane application | Electromagnetic scrap handling, steel yard material handling and outdoor ferrous metal lifting |
| Rated crane capacity | 5 – 20 ton, customized according to magnet weight, lifted load and operating conditions |
| Girder design | Single welded box girder with A-frame gantry legs |
| Magnetic lifting system | Electromagnetic lifting magnet / electromagnetic chuck with magnet control system |
| Magnet lifting capacity | Selected according to scrap type, material density, shape, thickness, surface condition and required lifting load |
| Magnet dead weight | Included in the hoist/trolley load calculation and selected according to the electromagnetic chuck specification |
| Span | 7.5 – 35 m, customized according to scrap yard layout |
| Lifting height | 6 – 20 m, customized according to required hook or magnet working height |
| Cantilever options | No Cantilever / Single Cantilever / Double Cantilever |
| Cantilever length | Typically 1 – 8 m per side, subject to structural calculation and required magnetic working area |
| Rail gauge | 6 – 35 m, customized according to wheel load and site layout |
| Travelling distance | 20 – 500 m+, according to outdoor ground rail layout |
| Hoisting system | Electric wire rope hoist / electric hoist trolley with electromagnetic lifting magnet |
| Hoisting speed | 3 – 12 m/min, single speed, two speed or VFD |
| Trolley speed | 20 – 40 m/min, VFD available |
| Crane travelling speed | 20 – 40 m/min, customized according to duty class and yard layout |
| Duty class | ISO A3 – A6 / FEM 1Am – 3m, selected according to working frequency |
| Wheel arrangement | 4 / 8 wheels or engineered configuration according to calculated wheel load |
| Rail | P38 / P43 / P50 / QU70 / QU80 or rail selected according to calculated wheel load |
| Electromagnetic control | Magnet control panel with lifting magnet ON/OFF control and electrical protection |
| Magnet power supply | DC electromagnetic lifting system; voltage and control arrangement customized according to magnet manufacturer and project requirements |
| Control | Pendant / Radio Remote / Operator Cabin |
| Power supply | 380V / 50Hz / 3Ph standard; 400V, 415V, 440V, 460V and 60Hz available |
| Safety devices | Overload limiter, lifting and travelling limit switches, emergency stop, buffers, travel limits, warning alarms and electromagnetic system protection |
| Outdoor protection | Weather-resistant electrical protection, protective coating, motor protection and wind protection according to actual outdoor site conditions |
| Working temperature | Typically -20°C to +40°C, customized for special environments |
| Typical materials handled | Steel scrap, iron scrap, ferrous metal, steel plates, steel pieces, cutting scrap and other magnetic materials suitable for electromagnetic lifting |
| Typical applications | Scrap yards, steel recycling plants, metal processing yards, steel storage yards, fabrication workshops, foundries and outdoor ferrous material handling areas |
| Yuantai Crane engineering experience | Yuantai Crane engineers the single girder, gantry legs, end carriages, wheels, rails, hoisting equipment and electromagnetic lifting system as one material handling system. The design considers crane capacity, magnet weight, lifting load, span, lifting height, duty class, wheel load and actual scrap yard operating conditions. |
Single Girder Gantry Crane with Electromagnetic Chuck: How Does It Work?
A single girder gantry crane with electromagnetic chuck uses an electric hoist or trolley to raise and lower the magnetic lifting device. The electromagnetic chuck generates a magnetic field when energized, allowing it to pick up suitable ferrous materials. The crane then travels along the ground rails to move the material to the required storage, processing or loading position.
The system is different from a conventional single girder gantry crane with hook. Instead of attaching slings, hooks or grabs to each load, the operator controls the electromagnetic lifting magnet to pick up suitable steel and iron materials. This makes the configuration particularly useful for repetitive scrap yard handling.
However, electromagnetic lifting performance depends on the material being handled. Steel type, material thickness, scrap shape, surface condition, air gap and material temperature can affect the actual magnetic lifting force. Therefore, the electromagnetic chuck should be selected from the actual scrap handling conditions rather than only from the crane rated capacity.
Single Girder Gantry Crane vs Electromagnetic Scrap Handling Gantry Crane
| Configuration | Main Lifting Method | Typical Application |
|---|---|---|
| Standard Single Girder Gantry Crane | Electric hook, sling, lifting beam or other attachment | General outdoor material handling, machinery, steel structures and production materials |
| Single Girder Portal Gantry Crane with Electromagnetic Chuck | Electromagnetic lifting magnet | Steel scrap, iron scrap, metal recycling and repetitive ferrous material handling |
| Outdoor Goliath Crane with Magnetic Lifting System | Electromagnetic chuck with electric hoist or trolley | Large outdoor yards, steel storage areas, scrap yards and metal processing plants |
| Single Girder Gantry Crane with Cantilever and Magnet | Electromagnetic lifting magnet with extended hook coverage | One-sided truck loading, unloading and scrap storage outside the main gantry span |
For a single girder gantry crane for scrap yard, the electromagnetic chuck is not simply selected according to the crane tonnage. The engineering team needs to check the magnet dead weight, magnetic lifting force, scrap density, material dimensions, lifting height, duty cycle, girder deflection, wheel reactions and foundation loads. The crane and magnetic lifting system should therefore be treated as one complete engineering package.
Where Is a Single Girder Gantry Crane with Electromagnetic Chuck Used?
The main application of an electromagnetic gantry crane is repetitive handling of ferrous materials. In a scrap yard, the crane can move steel scrap from trucks to storage piles, transfer material between sorting areas and load scrap into processing equipment.
A single girder gantry crane for scrap handling can also be used in steel recycling plants, metal processing yards, fabrication workshops, foundries and steel storage areas. The actual magnetic lifting capacity should be confirmed according to the material type and operating conditions.
- Steel scrap yards
- Metal recycling plants
- Ferrous scrap storage areas
- Steel processing yards
- Foundries and casting plants
- Fabrication workshops
- Steel plate and steel section storage yards
- Outdoor material loading and unloading areas
FAQ
Common questions about single girder gantry cranes with electromagnetic chucks, single girder portal gantry cranes, outdoor Goliath cranes and scrap yard magnetic lifting systems.
1. What is a single girder gantry crane with electromagnetic chuck?
A single girder gantry crane with electromagnetic chuck is a ground-rail travelling gantry crane with one main girder and an electromagnetic lifting magnet. It is mainly used to pick up and move ferrous materials such as steel scrap, iron scrap and steel pieces.
Yuantai Crane designs the single girder gantry crane, gantry legs, hoisting system, travelling mechanism and electromagnetic lifting system according to the required lifting load, magnet weight, span, lifting height, duty class and scrap yard working conditions.
2. Why use a single girder portal gantry crane for scrap handling?
A single girder portal gantry crane is suitable for outdoor scrap handling because it does not require a building overhead crane runway. The crane travels on ground rails and can cover large outdoor storage and loading areas.
When equipped with an electromagnetic chuck, the crane can quickly pick up suitable ferrous scrap without attaching lifting slings to every load. This makes it suitable for repetitive steel scrap loading, unloading, sorting and transferring.
3. Can a single girder gantry crane lift steel scrap with an electromagnetic magnet?
Yes. A single girder gantry crane with electromagnetic lifting magnet can handle steel scrap, iron scrap and other suitable ferromagnetic materials.
The actual lifting capacity of the magnet depends on material type, scrap density, thickness, shape, surface condition and air gap. Therefore, the electromagnetic chuck should be selected according to the actual scrap material rather than simply matching the crane rated capacity.
4. What is the difference between crane capacity and electromagnetic chuck capacity?
The crane rated capacity is the maximum load the crane structure and hoisting system are designed to lift. The electromagnetic chuck lifting capacity describes the magnet's ability to hold and lift a particular ferromagnetic material under specified conditions.
For example, a crane may have a higher rated capacity than the effective lifting capacity of the magnet for certain types of loose scrap. Yuantai engineers therefore consider the magnet dead weight, lifted material weight, magnetic force, hoist capacity and crane structure together.
5. What technical data is needed for an electromagnetic gantry crane quotation?
For an electromagnetic gantry crane quotation, provide the required crane capacity, maximum scrap load, span, lifting height, rail gauge, travelling distance, working frequency, power supply and site layout.
For the electromagnetic chuck, also provide the scrap material type, material density, typical piece size, plate or scrap thickness, maximum load, lifting temperature and required handling method. Photos of the scrap and a simple site drawing can help the engineering team select the correct magnetic lifting system.
6. Is a single girder gantry crane suitable for an outdoor scrap yard?
Yes. A single girder gantry crane is widely suitable for outdoor material handling when the required capacity, span, duty class and working area are within the applicable design range.
For an outdoor scrap yard, Yuantai Crane considers wind conditions, rain and dust protection, electrical enclosure protection, corrosion protection, rail foundation, wheel load and outdoor working temperature during engineering. A suitable electromagnetic control system is also selected for the magnetic lifting application.
7. What experience does Yuantai Crane have with electromagnetic gantry cranes?
Yuantai Crane has engineering and manufacturing experience with single girder gantry cranes, single girder portal gantry cranes, Goliath cranes and electromagnetic lifting systems for industrial material handling applications.
For an electromagnetic scrap handling project, the engineering work covers the main girder, gantry legs, end carriages, wheels, rails, hoist, magnet dead weight, electromagnetic control system and related wheel and foundation loads. The final configuration is based on the customer's scrap material, lifting requirements, site dimensions, duty class and operating environment.
Need a Single Girder Gantry Crane with Electromagnetic Chuck?
Send us your crane capacity, maximum scrap load, span, lifting height, rail gauge, travelling distance, scrap material type, required electromagnetic chuck capacity, working frequency, power supply and site layout.
Yuantai Crane can engineer a single girder gantry crane, single girder portal gantry crane or outdoor Goliath crane with electromagnetic lifting magnet according to your scrap yard and ferrous material handling requirements.
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Article by Bella ，who has been in the hoist and crane field since 2016. Bella provides overhead crane & gantry crane consultation services for clients who need a customized overhead travelling crane solution.Contact her to get free consultation.
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