There are many load specifications of oil tank electric gourds, from 5 tons to 30 tons. The standard chain length of 5 -ton electric gourd is 3 meters. It supports the length of the custom chain and can be made into 4 meters, 5 meters, 6 meters or other lengths. 5 tons of six meters use double chain, equipped with security hooks up and down. Pure copper plate motors, splashing water. Electric gourds are hanging electric gourds, and many or more than ten units are lifted together to increase the tanks. Although the speed is slow, the synchronization performance is good, and the operation problem is not a problem. The control method is controlled by the control cabinet. It can control multiple or several gourds, and single adjustment.