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Raw billets, beam billets, and plate billets are lifted using electric lifting magnets.
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Specialized Lifting Electromagnet for High-Speed Wire (Coil)
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Pipe blanks, steel pipes, large round blanks for lifting with electric lifting magnets
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Heavy rail, steel pipe lifting with electric lifting magnets
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Medium-thick steel plate lifting with electric lifting magnet
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Medium-thick steel plate multi-sheet lifting special lifting electromagnet
RELATED INFORMATION
VT-GTB(0)M(T) Contactless Digital Control Power-Off Magnetic Retention Device
Classification:
E-mail：hnyysg0730@163.com
Case Details
The VT-GTB(0)M(T) contactless power-off magnetic retention control device employs a set of three-phase fully controlled thyristor power modules to convert the 380V AC, 50Hz three-phase voltage into a DC voltage, providing forward excitation current to the lifting electromagnet. At the same time, this same module feeds the residual energy from the electromagnet back into the power grid after the material has been released. Another set of two-phase fully controlled thyristor power modules converts the 380V AC, 50Hz three-phase voltage into a DC voltage, supplying reverse demagnetizing current to the lifting electromagnet. The system’s operational status, timing sequence, and logical control are all managed by a microcontroller-based digital controller. During material lifting, if a power outage, phase failure, or fault occurs in the main rectifier section, the power detector automatically releases the main power supply, enabling the backup power source to instantly energize the electromagnet. Simultaneously, the device triggers an audible and visual alarm, alerting the user to promptly lower the lifted material within the battery’s magnetic retention time, thereby ensuring safety. The device’s charging section is equipped with a fully automatic charging unit that seamlessly switches between constant-current and float-charging modes, automatically detects overvoltage and overcurrent conditions, and precisely controls the charging process. In the event of a power outage, phase failure, or fault in the main rectifier section, the backup power source automatically engages. At the same time, the indicator light inside the meter box signaling the activation of the backup power source illuminates, and an audible and visual alarm is triggered. Users can then utilize the backup power source to safely lower the suspended steel billets or ingots—by operating the crane’s lifting brake—to the ground, thus securely releasing the heavy load.
Main technical features
1. There are three working modes.
(1). Constant-voltage power-off magnetic retention operating mode: Outputs DC 220V with magnetic retention during power failure;
(2). Magnetic Field Adjustment, Power-Off Retention Mode: Output DC 0V–DC 220V adjustable with power-off retention function;
(3). Contactless method;
Class group code: G stands for cabinet-type structure.
Power-off magnetic retention device
Maintenance-free method
0 is the strong excitation mode.
T is the magnetic adjustment method.
No-code constant voltage mode
Rated output power
With inverter circuit
C stands for indoor type, and D stands for outdoor type.
Py is a remote control method that supports both digital and analog signals simultaneously.
External dimensions
Main Technical Parameters of the Three-Phase Non-Contact Digital-Controlled Constant-Voltage Power-Off Magnetic Retention Device [For reference only]
Main Technical Parameters of the Three-Phase Non-Contact Digital Control Magnetic Field Regulation and Power-Off Magnetic Retention Device [For reference only]
Main Technical Parameters of the Three-Phase Non-Contact Digital-Controlled High-Excitation Power-Off Magnetic Retention Device [For reference only]
Equipment Completeness and Reference Dimensions for External Installation
The VT-GTB(0)M(T) contactless power-off magnetic retention control device employs a set of three-phase fully controlled thyristor power modules to convert the 380V AC, 50Hz three-phase voltage into a DC voltage, providing forward excitation current to the lifting electromagnet. At the same time, this same module feeds the residual energy from the electromagnet back into the power grid after the material has been released. Another set of two-phase fully controlled thyristor power modules converts the 380V AC, 50Hz three-phase voltage into a DC voltage, supplying reverse demagnetizing current to the lifting electromagnet. The system’s operational status, timing sequence, and logical control are all managed by a microcontroller-based digital controller. During material lifting, if a power outage, phase failure, or fault occurs in the main rectifier section, the power detector automatically releases the main power supply, enabling the backup power source to instantly energize the electromagnet. Simultaneously, the device triggers an audible and visual alarm, alerting the user to promptly lower the lifted material within the battery’s magnetic retention time, thereby ensuring safety. The device’s charging section is equipped with a fully automatic charging unit that seamlessly switches between constant-current and float-charging modes, automatically detects overvoltage and overcurrent conditions, and precisely controls the charging process. In the event of a power outage, phase failure, or fault in the main rectifier section, the backup power source automatically engages. At the same time, the indicator light inside the meter box signaling the activation of the backup power source illuminates, and an audible and visual alarm is triggered. Users can then utilize the backup power source to safely lower the suspended steel billets or ingots—by operating the crane’s lifting brake—to the ground, thus securely releasing the heavy load.
Main technical features
1. There are three working modes.
(1). Constant-voltage power-off magnetic retention operating mode: Outputs DC 220V with magnetic retention during power failure;
(2). Magnetic Field Adjustment, Power-Off Retention Mode: Output DC 0V–DC 220V adjustable with power-off retention function;
(3). Contactless method;
Class group code: G stands for cabinet-type structure.
Power-off magnetic retention device
Maintenance-free method
0 is the strong excitation mode.
T is the magnetic adjustment method.
No-code constant voltage mode
Rated output power
With inverter circuit
C stands for indoor type, and D stands for outdoor type.
Py is a remote control method that supports both digital and analog signals simultaneously.
External dimensions
Main Technical Parameters of the Three-Phase Non-Contact Digital-Controlled Constant-Voltage Power-Off Magnetic Retention Device [For reference only]
Main Technical Parameters of the Three-Phase Non-Contact Digital Control Magnetic Field Regulation and Power-Off Magnetic Retention Device [For reference only]
Main Technical Parameters of the Three-Phase Non-Contact Digital-Controlled High-Excitation Power-Off Magnetic Retention Device [For reference only]
Equipment Completeness and Reference Dimensions for External Installation
Key words:
Electromagnetic equipment manufacturing, multi-function lifting electromagnet, special lifting electromagnet, multi-purpose lifting electromagnet, permanent magnet coupling hysteresis head
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RELATED PRODUCTS
This series is designed for lifting and handling cast iron ingots, steel balls, pig iron blocks, machined chips; return materials, iron concentrate powder, cut-off ends; packaged scrap steel, and more. The excitation methods available include: rated voltage DC 220V mode; and strong excitation mode—over-excitation mode.
This series features oval-shaped lifting electromagnets, primarily used for efficiently loading and unloading scrap steel in narrow vehicle compartments. Customization is available based on the specific dimensions of the vehicle compartment.
This series features the most widely used rectangular electromagnets, primarily suited for lifting billets, ingots, and large initial rolling billets. They can also be used for lifting round billets and structural steel. Different magnetic circuit designs are employed to accommodate various types of steel.
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Address: Liji Avenue, Junshan Industrial Park, Yueyang City, Hunan Province
Fax: 0730-8647119