Minera El Abra is an open pit copper mine, located 75.6 kilometers northeast of the Chilean city of Calama. Mine output per day are more than 200,000 tons of copper ore for copper cathode production.

Large encoders such as HOG 16 / 22 /28 from Baumer are used for maximum speed limit monitoring of large drive shafts under the most difficult conditions, such as in coal dust, corrosive air, or in ...