At present, on our 13-meter large CNC gantry milling machine ,the steel mill cold roll is being processed .the roller is used to roll medium-thick plate steel. The roll is 11 meters long, 1.1 meters thick and weighs 65 tons. Our 13-meter gantry can bear 15 tons per square meter, it can be said that the weight has no impact on this machine tool, and the lifting level of our workshop crane can reach 300 tons. The shaft is currently being milled spline.
