For casting, the model was lowered into a pit in a specially built foundry. The statue was cast in bronze  melted in two furnaces; one could melt twelve tons at a time, but this was found insufficient, so a second furnace of 20 tons capacity was constructed.
The process of casting the statue involved lowering the model into a pit within a specially built foundry and melting bronze in two furnaces: one capable of melting twelve tons at a time, and another with a larger capacity of 20 tons.