Here is a link to the industry partnership that has installed...

Here is a link to the industry partnership that has installed the gold smelter set up for Manuka to pour their gold bars. It went operational in September. I would also hope that same setup was designed with the ability to also pour silver bars aswell
You'd also hope that having the ability to pour the bars on site provides much greater flexibility for the Manuka when negotiating a price for their end product..... as right now it's all about the 'physical' silver. It would be great if the company considered cutting out the middle man (eg; dodgy bankers) and just sold directly into the wholesale market... I think they'd get a much higher premium for their product!

https://www.gekkos.com/en/news/collaboration/gekko-cadia-systems-partnership-announced

Their furnace may look something like this: http://cadiasystems.com/barring-furnace/