In theater scenarios such as stage construction and equipment hoisting, high-quality stage hand chain hoists stand out as the core tools for precision operations like truss suspension and lighting & audio equipment lifting, thanks to their advantages of portability, flexibility and easy operation. For high-quality stage hand chain hoists, the safety and efficiency of hoisting operations are entirely dependent on the operator's precise control of pulling force - the pulling force must be kept stable and uniform at all times, and erratic pulling (sudden increases or decreases in force) is strictly prohibited.
Before operation, operators must first accurately calculate the actual weight of stage equipment (e.g., lighting trusses, audio cabinets), confirm that it falls within the rated load capacity of the hoist, and then adjust the pulling rhythm according to the weight of the load. During operation, a uniform force application method should be adopted to pull the chain steadily and evenly, ensuring that the load ascends and descends slowly and smoothly at all times. Irregular operations such as sudden pulling, violent jerking and intermittent pulling of the high-quality stage hand chain hoist must be eliminated, so as to guarantee that the load remains free from obvious shaking throughout the processes of lifting, translation and lowering.
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