This is the customized downender machine which used for turning steel packs 180 degree by clamping the bundles of steel panel and make rotation by the round turning body. The turn over action is smooth and reliable to perform by the machine. The loading and discharging of this machine is easy to do by forklift. The machine has design of rotating base, which is used to rotate the whole turn body after the 180 degree turnover. This can make it easier for operators to make the discharging. The forklift man can load and pick up the steel panel bundles at the same side without driving back and forth.