Manufacturing machine and method to manufacture a cylindrical battery

A manufacturing machine to manufacture a cylindrical battery comprising a cylindrical case, which houses an electrochemical cell and is closed, at the top, by a lid;

• the manufacturing machine comprises:
• a first processing drum, which is mounted so as to rotate around a first rotation axis in order to move forward, along a first processing path, a first seat designed to support the cylindrical case;
• a deformation unit, which is arranged along the first processing path and is configured to create an annular groove on a side wall of the cylindrical case;
• a second processing drum, which is arranged downstream of the first processing drum and is mounted so as to rotate around a second rotation axis in order to move forward, along a second processing path, a second seat designed to support the cylindrical case;
• a feeding unit, which is configured to feed the lid (10) on top of the cylindrical case supported by the second seat;
• a third processing drum, which is arranged downstream of the second processing drum and is mounted so as to rotate around a third rotation axis in order to move forward, along a third processing path, a third seat designed to support the cylindrical case;
• and
• a first bending unit, which is arranged along the third processing path and is configured to bend a rim of the cylindrical case against the lid.