English 
Spanish 
3 min read
0 comments
Discover the fascinating process of creating Brazilian banknotes and coins at the iconic Casa da Moeda in Rio de Janeiro
Have you ever wondered how coins and banknotes are made? In the video from the Manual do Mundo channel, who paid a visit to the Brazilian Mint in Rio de Janeiro, it was possible to discover how our money is manufactured. With more than three hundred years of history, the Mint is the heart of currency and paper money production in Brazil, and is also responsible for creating the medals for the 2016 Olympic Games.
Manufacture of banknotes at Casa da Moeda
The Mint has three main units: a printing press for passports and stamps, a coin factory and another for banknotes. The visit begins in the section dedicated to banknote production.
- Paper preparation: The paper used is not common; it is specially prepared for the manufacture of money. This paper, which is already colored and contains magnetic threads, is designed to withstand the complexities of banknote printing. When viewed against the light, you can see the watermarks that help prevent counterfeits.
- Print: The printing process is impressive. Unlike common printers, which use four colors, Brazilian banknotes are printed with up to twenty-seven different colors, and printing occurs on both sides of the paper simultaneously. Sophisticated machines apply invisible inks that only appear under ultraviolet light and micro-prints visible only with magnifying glasses.
- Calcography: After printing, the banknotes go through a process called chalcography, which creates a relief in the ink. This high relief is an important feature that help authenticate ballots, as it is difficult to replicate on counterfeit banknotes.
- Checking and numbering: A highly trained team carries out a thorough visual check to detect printing defects. After this review, ballots receive a unique number, similar to an ID, which guarantees control and security.
- Sorting and packaging: The banknotes are then separated and packaged. For example, one hundred reais notes are grouped into packages of ten thousand reais and later into boxes containing one hundred thousand reais. A package like this represents one million and six hundred thousand reais in one hundred reais bills, ready to be sent to the Central Bank.
Now let's go to the coin making section at the Mint. The process includes:
- Preparation of metals: The base material for coins, such as the bronze-coated stainless steel core for the one real coin, arrives in its raw form.
- Mintage: The metal discs pass through a coining machine, where they are pressed between two dies and a ferrule. This machine, which exerts a pressure of seventy-five tons, prints the details of the coins and molds them into their final shape.
- Quality control: After minting, coins are counted and checked by sensors. They are packaged in bags of fifty units, which are then grouped into larger bags. Each bag contains five hundred reais in coins and is weighed to ensure accuracy. Excess coins are detected and rejected.
- Final packaging: The coins are finally packed into pallets, with one pallet containing one hundred and twenty-eight thousand one-real coins. Each box inside the pallet contains four thousand reais and weighs around thirty kilos.
Register
Enter
0 Comments
Older
