The inherent quality of stage hoists serves as the fundamental guarantee for preventing chain breakage. Chains of inferior stage hoists are often made of substandard metal materials with shoddy production processes, and they do not undergo rigorous strength tests and quality inspections. Even if strict operational specifications are followed during use, such chains are highly prone to breakage and other safety incidents.
Therefore, when procuring stage hoists, we must adhere to the principle of "quality first, safety paramount" and select qualified products manufactured by regular manufacturers. Specifically, it is essential to verify whether the manufacturer has complete production qualifications and whether the products have passed relevant national quality certifications, as well as to check supporting documents including product certificates of conformity and inspection reports. Meanwhile, attention should be paid to the manufacturer's after-sales service system, and brands that can provide comprehensive after-sales guarantees should be chosen, so that timely maintenance and replacement services can be obtained in the event of equipment quality issues.
The procurement of three-no products (products without a manufacturer's name, production address or certificate of conformity), refurbished products or low-cost inferior products must be firmly prohibited, so as to eliminate the risk of chain breakage caused by equipment quality defects from the source.