Currently, resumption of work and production is in full swing, with machines roaring in the factory and a bustling scene. Hand pulled haws have been widely used in production due to their lightweight, simple, and compact characteristics. However, it should be noted that in specific operations, it is strictly prohibited for multiple chain hoists to lift the same heavy object at the same time, for the following reasons:

Firstly, when using multiple chain hoists to lift heavy objects, the difficulty in unifying the force, pulling speed, and start time of each operator can easily cause the center of gravity of the heavy object to shift, resulting in unstable center of gravity and posing a safety hazard to the operation.

Secondly, this operation method is difficult to achieve vertical lifting, and the diagonal pull of the chain will significantly increase the pressure on the casing. Long term use of this method can cause severe wear on the casing, affecting the service life and safety of the chain hoist.

Furthermore, there are natural differences in the force applied by each person, and even if everyone deliberately reduces their speed and pulls slowly, it cannot guarantee that the force on the heavy object is evenly distributed from all angles. This will cause the goods to tilt, and if the tilt angle is too large, it may pose a risk of the goods falling.

In addition, if one of the chain hoists experiences chain jamming, slipping, or other malfunctions during operation, the entire weight of the goods will instantly tilt towards the remaining chain hoists, which will undoubtedly exceed their own load-bearing range, causing serious damage to the chain hoists and even triggering more serious safety accidents.

Therefore, during the critical period of rushing to resume work, it is absolutely not advisable to use multiple chain hoists to lift a heavy object at the same time in order to save time and effort. It is necessary to strictly follow the operating procedures to ensure production safety.