How Are Minted Gold Bars Made?
Minted gold bars are normally manufactured from cast gold bars that have been rolled to a uniform thickness. In broad summary, the rolled cast bars are punched with a die to create blanks with the required weight and dimensions. To record the obverse and reverse designs, the blanks are struck in a minting press.
Minted gold bars production line includes:
1. Continuous casting / metal melting furnace
2. Sheet rolling
3. Bars blanking
4. Annealing and cleaning, polishing
5. Logo stamping