Braking the world’s largest ball mills(03/06/2009)
Twiflex modular brakes are providing up to 35 MNm of total braking torque on two 8-metre ball mills, which are part of South Africa's - and probably the world's - biggest platinum concentrator, at Anglo Platinum's Mogalakwena (previously PPRust) mine near Mokopane. The new concentrator ex-pands milling capacity by 600,000 tons per month, producing an additional 230,000 ounces of platinum per annum and bringing total platinum production at the mine to 430, 000 ounces per year.