Coin production flow sheet

Blanks

Casting
The coinage metal is cast in ingots or bars.

Rolling
The ingots are then rolled into strips.

Stamping out
Blanks are stamped out of the sheet metal.

Rimming
The blanks are flattened until a smooth raised edge or rim is formed.

Minting tools

Sketch
The artist draws a sketch.

3D model
The sketch is used to create a virtual, 3D model.

Reducing
A CNC milling machine is used to transfer the coin-sized virtual effigy to a steel cylinder.

Engraving
The steel-positive die thus produced is subsequently reworked by an engraver.

Pressing
Afterwards, the steel-positive die is hardened and pressed with great force into a mild-steel model.

Hardening
The negative minting die thus produced is then turned into shape, hardened and chromium-plated.

Minting

Minting
The circulation coins are continuously struck, the uncirculated reduced speed.

Preparing blanks for minting in proof quality

Annealing
The malleability of the blanks is enhanced by soft-annealing in a furnace.

Peen-finishing
To achieve optimum surface quality, the minting blanks are subsequently pickled and peen-finished.

Washing
The blanks are washed in order to remove any pickling and polishing-agent residues.

Individual minting
The stain-free dried blanks are struck one by one.

Packing

Packing collector's coins
Commemorative coins in proof quality are packed by hand in elegant cases.

Dispatch
Swissmint dispatches collector's coins to banks, coin dealers and private collectors.

Packing circulation coins
Circulation coins are automatically rolled in paper, packed in cardboard boxes and palletised.

Delivery
The pallets with the boxes of coins are delivered to the Swiss National Bank.

Distribution
The Swiss National Bank distributes circulation coins to post offices, banks, etc.

Last modification 28.05.2021

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