Hummingbird making short work of second ball mill project at .
Jun 17, 2019 . The second ball mill will increase throughput capacity from 1 Mt/y to 1.24 Mt/y . to 1.4 Mt/y when processing a blend of ore types, according to Hummingbird. . Dan Betts, CEO of Hummingbird, said: At full capacity, the mine will benefit . Volvo CE investing in new arena and R&D test track for autonomous.Live Chat