Manganese Ore Mobile Screening Project – Johannesburg, South Africa. By Emily December 25, 2015 News. Processing of materials: Manganese ore (40% grade) ... (including feeder GZD1300 × 4900, the European version of the jaw broken PEW860), the crushing and screening mobile station (including cone crusher HPT300, shaker 3YZS1860), Siemens ...