ABSTRACT
Mining of material without blasting and/or selectively becomes more and more important for high quality ROM-products. Surface Miners have been developed especially for this purpose. The experience from more than 100 machines sold and countless test- and rental operations has been incorporated into a new machine concept. The cutting technology of these machines has been improved, so that harder material as well as wet and sticky materials can be cut with better results now. Especially the cutting drum design and more precise drum manufacturing process now allow production and equal tool wear over a long period. The better knowledge of rock parameters influencing the cuttability and cutting results allow higher production, less cutting tool wear and therefore reduced production costs.
