The HHBB ring chain electric hoist is a light and small lifting equipment, which consists of electric motors, transmission mechanisms and sprocket wheels. The internal gears are quenched by high temperature, which increases the wear resistance and toughness of the gear. The international advanced technology is used, the workmanship is fine, and the gears are tightly matched. The starting weight is 0.3-32 tons, and the rise height is 3 ~ 120 meters. This product has a wide range of use, which is used in workshops, logistics, docks, buildings, etc. It can also be used with a single double beam lifter, cantilever crane, and dragon door frame. It can be used for hanging or loading and unloading goods, or for the installation, commissioning and maintenance of precision molds. The operator uses the button to follow the ground to manipulate, or it can also manipulate indoors or use a wired (wireless) long -distance control in the control room. This electric hoist can be used in a fixed suspension, but also uses an electric monorail car and push/hand -pulling monorail car.