This model electric hoist is an improved product with some special designs based on the original CD and MD models. It has high temperature resistance and heat insulation protection, double lifting limit protection and M6 working level. With a rated load capacity of more than 5 tons, in addition to the service brake, the electric hoist is also equipped with a low-speed safety brake. If the service brake fails or a transmission component breaks, it can reliably carry the rated load. If the rated load capacity is less than or equal to 5t, the electric hoist is designed for 1.5 times the rated load capacity.