Copper Stripping Machine - Hydraulic System TM CJC Application Study CUSTOMER Mine: Minera El Tesoro -Sierra Gorda- Antofagasta (Chile) THE SYSTEM Copper Stripping Machine. Brand: Wenmec. Hydraulic System. Oil V olume; 3200 litres. Oil ISO VG 46. THE PROBLEM Wenmec is recommending the max. contamination level in the hydraulic system to be ISO 14/11. Higher contamination severely reduces lifetime of hydraulic components and oil and it is w

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