What are the limitations of the lifting electromagnet in its operating environment?
Time : 2025-09-06
The lifting electromagnet is a special electromagnet that uses the absorbed material as its armature. It is a device that utilizes the physical principles of electricity and magnetism to attract ferromagnetic materials, making it an ideal lifting tool that reduces the labor intensity of unloading workers and significantly improves productivity. The basic principle is that when the electromagnet operates, the power supply and control equipment provide direct current power to the electromagnet, creating a strong magnetic field inside it. This magnetic field generates strong magnetic force in the absorbed material through the magnetic circuit of the shell and the working air gap, thereby achieving the purpose of transporting materials.Usage Conditions:1. Height not exceeding 2000 meters.2. Environmental medium temperature: Normal temperature type: below 40, below -20; High temperature type: below 50, below -20.3. The surrounding working environment is non-hazardous and free from corrosive gases.4. The relative humidity of the surrounding air is below 85%(20).For cranes used in atmospheric environments, manganese phosphate coated steel wire ropes are preferred, while those in medium environments should use hot-dipped galvanized-phosphate double-layer coated steel wire ropes, and marine applications recommend offshore steel wire ropes. It is important to note that when purchasing, the invoice should specify the name of the steel wire rope, such as phosphate coated steel wire rope or 316 stainless steel wire rope, to prevent infringement of legitimate rights by unqualified electromagnet manufacturers selling counterfeit products.How to prevent the hook of the lifting electromagnet from swaying back and forth:1. To prevent the swinging of the electromagnet's hook, the operator must adhere to operating regulations, position the load correctly during operation, and start slowly one gear at a time. The brakes for various sizes of vehicles should be appropriately adjusted, and an effort should be made to ensure smooth movement toward the east. Stopping should be done smoothly, and when handling lighter items, do not patrol with a short rope loop. Implementing these measures can effectively prevent the electromagnet hook and the object from swaying.2. To eliminate hook sway and stabilize the hook: When improper operation of the lifting electromagnet leads to swaying, a technique similar to that used with vehicles should be employed to eliminate pendulum motion. If the direction between the hooks is swaying in place and has not yet reached the maximum value, suddenly accelerate the vehicle in the same direction, which will cause the hook to stop swaying and come to a non-lead position. If the speed of the vehicle is approximately equal to or matches the horizontal progression of the hook, then the relative speed between the two will be nearly zero, stabilizing the hook.
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