Machining cast iron on 4th axis

In this video, you will see how we mill a cast iron huge part on the 4th axis. Specifically, we do a couple of operations such as spot drilling, drilling, and pocket, and profile milling on a really tight clearance. We do not use coolant at all in any operation in order to avoid making dirty the coolant inside the cooling tank and also on the table of the machine but instead of cooling we use high air pressure in order to decrease the cutting temperature.