How soda can lids are made in China
The soda can lids are made of thin aluminum sheet. The manufacturing process is as follows: first, an aluminum coil is unwound and fed into a stamping machine that cuts out round discs. A separate machine then punches a hole in the center of each disc. The discs are then fed into a lidding machine, which curls the edges of the discs to form a lip. Finally, the lids are cut to size and placed on cans.
The Chinese company, Kuehne + Nagel, has a contract with Coca-Cola to manufacture can lids. The process begins with large coils of aluminum that are cut into small strips.
These strips are then fed into a machine that shapes them into lids. After the lids are formed, they are fed into another machine that adds a plastic coating.
Finally, the lids are cut into smaller pieces and packaged for shipment to Coca-Cola bottling plants around the world.