In some books or literature, there are some incorrect guidance on the interpretation of chain electric hoists, which leads to many people having a great misunderstanding about the performance of chain electric hoists themselves. The following technicians will provide a comprehensive answer to this situation. Many people introduce electric chain hoists in this way, stating that their lifting height is limited and not suitable for larger lifting heights. In fact, electric chain hoists are particularly suitable for situations with high lifting heights.

　　Our company has undertaken the cantilever crane installed on the main beam of large Gantry crane for many times. The cantilever crane has a lifting capacity of 5t, a lifting height of 10m, and a cantilever length of 12m. The original drawing requires HG with a lifting capacity of 5t, a lifting speed of 8m/min, and a lifting height of 80m (the lifting height of the jib crane is 10m, and the lifting height of the Gantry crane is 70m). The hoist is 298m long and has a dead weight of 16t. The effective travel of the hoist on the jib is only 68m. Our company has changed the lifting capacity, lifting speed, and lifting height of the above rotary arm crane to the same parameters as the original drawing requirements. The electric chain with a length of only 043m and a self weight of 065t is used, and the effective travel of the hoist on the rotary arm is 115m. There is also a saying that the lifting speed of chain electric hoists is slow. The application of chain electric hoists in China has a shorter time compared to wire rope electric hoists. In the early stages of application, some manufacturers only added a motor to the chain hoist to create the chain electric hoist. At that time, chain electric hoists not only had slow lifting speed, but also had poor other performance. Due to preconceptions, the electric chain hoist has given people a bad impression. In fact, according to the transmission principle of the chain electric hoist, its lifting speed can be very high, but the lifting speed is high, and the corresponding manufacturing accuracy is also higher.

　　The electric chain hoist has great development space in both lifting height and lifting speed, and does not have limitations, as some people say. Compared to previous chain hoists and wire rope electric hoists, chain electric hoists have an absolute advantage.