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Magnetic Overhead Crane: Principle and Operational safety guidelines

A magnetic overhead crane is a lifting device in industrial equipment that utilizes a control system to operate high-voltage and high-current circuits with low-voltage current. The magnetic overhead crane features low-risk factors, ensuring safe and user-friendly operation. Common types of electromagnetic cranes include single-girder electromagnetic cranes, double-girder electromagnetic overhead cranes, electromagnetic double-girder gantry cranes, and electromagnetic under-hung beam cranes. They are widely employed in sectors such as scrap metal recycling and steel-making workshops. Magnetic overhead crane principle Electromagnetic overhead cranes use electromagnets to generate magnetic force for lifting. An electromagnet consists of an iron core, coil, and power supply. When energized, the current flows through the coil, creating a magnetic field that magnetizes the iron core, thereby generating an adhesion force. Lifting objects When the power is activated, the electromagnet generates a magnetic force, securely attracting the object attached to the lifting hook. Transporting objects After lifting, the overhead crane moves along its rails, driven by a rotational motor, to transport the suspended object to the target location. Placing objects Upon reaching the destination, the motor halts. The power is then disconnected, causing the electromagnet to lose its magnetic force and release the object at the designated position. Key components...

Gantry Crane – 10 Common Faults and Inspection

Gantry crane inspection is a key step in ensuring safe operation and extending the service life of gantry crane equipment. Here are 10 examples of faults and inspection that will be encountered in the safety inspection process, so you can quickly understand these faults and correct the possible safety risks in time. 1. Rail section inspection and fault examples of gantry cranes ● Check whether there is any settlement, fracture, or crack in the track foundation of the gantry crane. ● Check the rail for cracks, severe wear, and other defects. ● Check the contact between the rail and the rail foundation, and shall not hang on the foundation. ● Check whether the rail joints meet the requirements, generally 1-2MM and 4-6MM in cold areas. ● Check the transverse dislocation and height difference of the rail for the gantry crane, the requirement is not greater than 1 MM. ● Check the fixing of the guide rail, the plate and bolts should not be missing, and the plate and bolts should be tightened and meet the requirements. ● Check the connection condition of the guide rail connecting board. ● Check whether the longitudinal slope of the rail meets the design requirements, generally at 1‰. The overall length is not greater than...

How to prolong the life of overhead and gantry cranes?

Overhead and gantry cranes are generally best placed in a flat and wide warehouse with no obstacles so that they can be maintained and managed better. When the overhead and gantry crane is not in use, management is also very important, rather than just leaving it somewhere and not caring about it. This is not conducive to the maintenance of the crane’s performance and the flexibility of the next operation. Therefore, how to prolong their life is a very necessary thing. How to manage the overhead and gantry crane during storage? Based on our experience, we focus on the following points: It is necessary to use a thicker plastic bag to package the whole overhead and gantry crane. In other words, it is best not to leave it there at any time, leaving it exposed to the outside naturally. This is not good. We need to manage it like a car, which is to use thick plastic bags to package everything except the tires, which can protect it from some damage and interference from the outside world. Carry out special personnel management, and assign special personnel to check and find problems on the crane from time to time, so that...

Industrial Jib Cranes

Introduction Industrial jib cranes are the new light-duty material lifting equipment that improves productivity. It is also known as a cantilever crane, swing jib crane, slewing jib crane, and workstation jib crane. With high-reliability electric hoists equipped, industrial jib cranes are more suitable for short distances, frequent use, and intensive lifting operations. So, it is relatively popular in these industrial fields such as machining, warehouse logistics, workshop production, etc. The lifting device of the industrial jib crane is suspended on the arm end or on the lifting trolley that can run along the slewing arm, and the slewing arm can turn but cannot pitch. The electric hoist runs a right and left straight line on the cantilever I-steel. The decelerating device drives the cantilever to turn, which has the characteristics of high efficiency, energy saving, trouble saving, small footprint, easy operation, and maintenance. Working principle The industrial jib crane is mainly driven by the motor drum, and the steel wire rope wrapped on the drum drives the lifting hook to carry out lifting movement, to realize the lifting of materials. Meanwhile, you can learn more about the main parts and how to choose industrial jib cranes here. Different types of...

What are the issues of electric chain hoists that customers are most concerned about?

How do you install the sliding wire of the electric chain hoist? Electric chain hoists are mostly installed on U-shaped tracks. In view of this feature, the steel cable is arranged in the middle of the track and on the upper part of the I-beam. The steel cable uses q~10mm steel wire rope or round steel, and the end is fastened with a basket bolt. The sliding ring is two rings interlocked with a certain margin to avoid the scratching of the steel cable. The steering ring is two rings connected by bolts and can rotate freely. Put one end of a steering ring on the steel cable, and fix the rubber sheath wire to the lower end of the steering ring after leaving the motor lead. Put one end of multiple sliding rings on the steel cable, and then fix the rubber sheath wire in sections to the lower end of the sliding ring. The front end is connected to the motor and can move freely. The rear end is connected to the power supply. Under the traction of the motor, with the steering ring as the center, the traction steel cable moves in a straight line or circle....

What is the advantage of the truss type gantry crane?

Truss type gantry cranes play an indispensable role in the industrial and logistics fields due to their unique structure and multiple advantages. With the development of technology, the functions and efficiency of these lifting equipment are also constantly improving, better meeting the needs of modern industrial production. Let’s take a look at the advantages of choosing truss type gantry cranes. Large lifting capacity Truss-type gantry cranes can carry very heavy goods, and the lifting capacity can reach hundreds or even thousands of tons. Large span According to needs, truss type gantry cranes can be designed with a large span, suitable for material handling in wide venues. High efficiency The lifting trolley of the truss type gantry crane can move quickly on the beam, greatly improving the handling efficiency. Wide range of applications Whether indoors or outdoors, ports or factories, truss type gantry cranes can adapt to different working environments. Good safety The structural design of the truss gantry crane considers safety factors, and the application of modern control systems further reduces operational risks. High reliability The design and manufacture of the gantry crane follow strict standards to ensure the long-term and stable operation of the equipment. Easy maintenance The daily...