The machine accurately doses gold and silver grains for the prodcution of bullions and cast bars. The Preci-dos is completely automatic, with dosing cells and grains transfers completely controlled by PLC. It has a number of steps to achieve accurate control on final weight. The grains container in the machine are loaded by gravity into the pre-dosing scale, to approach the final desired weight. After the pre-dosing step, a second phase starts to reach the final desired weight by adding a controlled quantity of gold or silver wire or powder (depending on customer specification) and the discharge the correct quantity of material into a container. To maintain accuracy and productivity, the machine is capable of self-learning, based on the continuous use. In particular the machine can statistically anticipate the average drop time of a single grain, to avoid overshoot.
Namibia
Namibia Italy Gems was founded by Sergio Chiesa, specializing in design and cutting of exotic pieces of handmade jewellery. Initially the company started with Makalani palm nuts sculpted into the iconic ladybirds, later moving on to cutting and polishing Namibian gem stones. Sergio mainly employs young and needy men and women, vulnerable unemployed youth and teach them to create intricate designs with Makalani jewellery and gem stones.
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