We have got media price of around 6 usd/kg of size 3-5 mm and Christophe has agree with this size.
I am now collecting budget for other job to do for this trial hope we can settle the budget next week since our engineer are now busy with roto-packer.
The process to prepare are about feed / product tank because it may take some time to finish the trial. The SMD will use common existing unit.
I will keep update next week.