Yes, you can use a rolling machine to roll aluminum coils into sheets. Rolling machines are specifically designed to apply pressure and reduce the thickness of metal coils, such as aluminum, into thinner, flatter sheets. The process involves passing the aluminum coil through the rolling mill, where it is compressed between rollers. This process can be repeated to achieve the desired thickness and flatness of the aluminum sheet. It's important to ensure the rolling machine is suitable for aluminum and that the appropriate settings are used to avoid damaging the material or the machine.