Coining Press

Coining Press

 

a short-stroke, vertical knuckle-joint press designed for coining and other closed impression die forging operations. A distinguishing feature is the use of a crank-and-toggle mechanism to drive a slide, in which the upper link of the toggle is connected to the frame of the press and the lower link is connected to the slide block. Such a mechanism develops great force on the slide block at the end of the working stroke for a small torque at the driving crankshaft. Coining presses may develop pressures up to approximately 40 meganewtons (4,000 tonsforce).

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The upset blanks then go off to the coining press, which is set with dies showing the heads and tails of each coin to be made.
A 1,000 ton hydraulic coining press was designed, built and delivered to a manufacturer of brake shoes, brake shoe kits, friction material and related parts for tractor trailers and heavy duty trucks.
This is 'the finale', so to say, when a coining press strikes a blank with two dies, on the obverse and reverse (heads or tails of a coin), and with more or less 80 tonnes of pressure (depending on the type of coin), a shiny new coin is produced.