20 -ton group hanging electric gourds, running smoothly, slow speed, good synchronization. The 20 -ton group hanging electric gourd is a DHP type ring chain electric hexer. It uses an 8 -line 10 mm G80 chain. The standard chain is 3 meters long and can be made into 3.5 meters, 4 meters, and 6 meters. Double gourd head, dual motor, and motor power is 0.5 kilowatts. This electric gourd does not have a controllers. Groups of group control need to be used with control cabinets. Mass control, multi -control, and single control through control. A large, ten days, dozens of units can be simultaneously enhanced a large -scale oil tank, construction, equipment, climbing, and so on. This electric gourd is slow and is generally used in group hanging. It can often see it when welding in large oil tanks, so it is also called oil tank electric gourd.