Overhead Crane Using 1T 2T 3T 5T 10T Electric Lifting Rectangular Magnets

The lifting magnet is designed for working on 220 V, D.C. with high lifting force and low power consumption. We will include the prices of requisite rectifier and control equipment for obtaining D.C. supply from 415V, 3 Phase, 4 Wires, 50 Hz. A.C. system.

All coils of the electromagnet will be wound with adequately rated electrolytic grade conductor and insulated with tropic proof insulator. All leads will be positively secured to terminal ends inside the coil assembly and brought out for external connections, eliminating all chances of damage from expansion and contraction of the coils

The rectangular magnets are mainly used  to handling billets, steel plates and rebars in steel factory.

1.The power on duration is 75%, and the operation frequency is high. The work efficiency and the speed of loading and unloading operation are greatly improved compared with the standard series products.

2.Strong excitation mode (dc-290v / dc-220v) is adopted to improve the lifting capacity.

3.The over excitation mode (dc-350v / dc-290v / dc-220v) can also be used for the large lifting electromagnet to speed up the current rise speed and play a stronger lifting capacity.

1. PLC adopts in the whole process of controlling, with the function of forgetting to discharge protection, when the magnet is energized for more than 30 minutes, the magnets will be cut off directly.

2. The rectifier module adopts radiator fan protection. When the electrical panel is energized, the fan remains static. When the magnet is activated, the contactor starts and the fan start to run. When the contactor has no action for more than 30 minutes, the fan stops automatically, this greatly extends the fan service life.

3. Reverse degaussing time can be set. The longer the degaussing time, the lower the heating efficiency of the magnet will be. Generally speaking, the longer the degaussing time, the better magnetic is.

4. Circuit current protection, three-phase AC fuse protection, output DC to magnet still has fuse protection, control circuit protection.

5.The magnet is a winding coil system, no mechanical action. If working at the rated voltage according to the correct operating procedures, with full protection control cabinet, it can be used around 8 years to 10 years.

The spring clockwork technology is introduced internationally, and the coil spring is used as the driving force. The cable is stored automatically by the spring energy storage. It has the characteristics of simple power supply, safe and reliable operation, and moderate cable force etc.

For high temperature environment, high temperature marine cables are selected for cables. The cable can be retractable freely and reliably, and the collector slip ring brush holder structure is used to transmit electric energy to make the power supply continuous and stable.

The safety factor of the electromagnet is higher. When designing the magnets, we focus on the magnetic conductivity improvement of high temperature materials and ultra-high temperature materials, so the safety factor is high.

In the design, the influence of the maximum air gap (the worst working condition) is considered. During the fabrication process, the core and the roof are pressed and welded by the door type oil press when the coil assembly is assembled, which can improve the suction and enhance the heat dissipation effect.

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