What are the key points for using a hook-type electric chain hoist?

2023-01-13

FONT

The main feature of hook-type electric chain hoists is their ability to lift multiple loads simultaneously—this is the group-lifting function of chain hoists. They can also be used as the main lifting unit in a climbing scaffold system, with several chain hoists working in unison to climb the scaffold, which places very high demands on speed. Below, we will outline the key points for their proper use.

Hook-type chain electric hoists offer significant advantages in installation flexibility. During installation, the hoist’s axis can be perpendicular to the track centerline, whereas wire-rope electric hoists must be aligned parallel to the running track centerline. Consequently, the lateral travel range on an I-beam is much greater, which is highly beneficial for applications such as gantry cranes and other lifting operations. Moreover, during lifting and hoisting, because the hook of a hook-type chain electric hoist moves along the vertical line of the chain—unlike other types—the horizontal displacement is minimal. However, during the winding process, the hook does experience some axial horizontal displacement. Since this displacement is proportional to the lifting height, it becomes particularly noticeable when the lifting height is substantial. This discrepancy arises primarily because the center of gravity of the load and the center of gravity of the hoist no longer lie on the same vertical line, thereby disrupting the force balance between the two hoists and ultimately affecting the lifting performance of the hook-type chain electric hoist.

 Hook-type electric chain hoist

The housing of the hook-type electric chain hoist is made of die-cast aluminum alloy, offering lightweight construction, excellent stability, and superior heat dissipation. Its fully sealed design makes it suitable for operation in harsh environments. For special electrical equipment, the control circuit will not function if the power supply wiring is incorrect. A limit switch for lifting and lowering heavy loads is provided to automatically stop the motor, thereby preventing overtravel of the chain. The hook-type electric chain hoist boasts advanced technology, convenient operation, light weight, low headroom requirements, high space utilization, and reliable safety, making it widely used in modern manufacturing. Its key transmission component—the helical gear—features high transmission efficiency, precise gear ratios, and a compact structure. Compared with spur gears, helical gears are more stable and reliable, making them particularly well suited for high-speed, heavy-load applications. Today, the hoist consists of an electric motor, a transmission mechanism, and sprockets. Unlike wire-rope electric hoists, it uses a chain instead of a wire rope, thereby overcoming the drawbacks of larger size and heavier weight. Its rated lifting capacity typically ranges from 0.5 to 60 metric tons, with a lifting height of 3 to 120 meters.

The above article has outlined the key points for using hook-type electric chain hoists and also recommended a reputable manufacturer in this field. If you have related needs, feel free to explore their offerings—we hope this information proves helpful. Our company employs state-of-the-art, integrated production equipment and processes currently available in China, ensuring that our products are of superior quality, aesthetically pleasing, and highly durable.

Keywords:


Related Recommendations


Applications and Advantages of Double-Chain Electric Hoists

While at work, we often encounter various types of hoists, each with its own specific functions; the double-hook electric hoist is one such example. An electric hoist is a lifting device powered by an electric motor, primarily used for handling and lifting large materials. It enhances operational efficiency, reduces workers’ physical strain, and ensures precise material handling. In addition, the double-hook electric hoist features fully automatic control and safety devices, enabling it to meet the demands of diverse working environments while maintaining safety and reliability.

Product Inquiry

*Note: Please provide the relevant information accurately and ensure that your communication channels remain open. We will contact you as soon as possible.

Submit