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Thoughts on safety technical specifications of electric chain hoist

Edit:Henan Linuo hoisting Machinery Co., LtdUpDate:2018-06-05

The safety technical specification for electric chain hoist is a mandatory requirement for safety performance and energy saving of cranes formulated by the General Administration of Quality Supervision, Inspection and Quarantine, and involves the design, manufacture, installation and testing of electric chain hoists. Basically based on singular and restrictive terms, it is easy to check and execute.
However, since most of the cranes are user-customized products, there are many non-standard products and many structural changes. If some technical terms are too restrictive, it will also bring about a reaction that hinders technological progress and innovation. At present, in the process of the development of cranes towards automation and intelligence, this contradiction has begun to emerge. Some practices of foreign crane regulations are worth learning from.

After a major personal injury accident occurred in the crane of the hanging steel ladle in China, a strict safety technical specification for lifting the molten metal crane was issued. Among them, the use of electric chain hoist to lift molten metal, its rated lifting capacity should not be greater than 10t, simple and clear, but the development space of the larger lifting electric chain hoist will be gone.