About Coin Counter
A coin counter is a small machine that either sorts and counts, or counts pre-sorted coins. They can be an electronic, or purely manual system.
Typically a device which counts pre-sorted coins is a fairly simple system, in which coins are poured into a bowl shaped compartment of the machine, which has a spinning disk at its base. The spinning disk distributes coins around the edge of the bowl, where they fall through a small gap, wide enough for one coin at a time. This triggers a sensor, which allows the machine to count each time a coin has passed through the gap.
Coin sorters operate in a similar way, although they are able to distinguish different value coins, and can be used to sort and count a pile of mixed coins. The machine does this by forcing the coins through very specific gaps, thus giving a running total for each type of coin, and a total value. Coin sorting devices are usually specific to a particular country, because they are reliant on measuring the exact size of a particular coin in order to sort it.
Some of the devices can count banknotes too ? normally through using a very sensitive weighing device, which can give a very precise weight of a bundle of the same kind of note, which indicates the value of the bundle.
Coin sorters are thought to have originated in China, with recorded examples present from the early part of the 20th century. These examples were used as banking aids ? although it?s quite probably that some type of coin sorting device would have been engineered and used in far earlier cultures.