Surface miner for raw material extraction and routing operations

摘要

With the introduction of the 220 SM/220 SMi surface miner, Wirtgen is unveiling a new machine designed especially for use in small and medium-sized mining operations as well as for routing work and infrastructure projects. With a cutting width of 2.2 m and a cutting depth of up to 300 mm, the 220 SM/ 220 SMi can extract raw materials up to a uniaxial compressive strength of 50 MPa. The extracted material is deposited behind the machine in a windrow and then loaded onto trucks with wheel loaders. Selective extraction makes it possible to mine raw materials with a high level of purity. The use of surface miners also reduces the amount of equipment, maintenance, and time required compared to drilling and blasting or rip-and-stack mining. In addition, refraining from drilling and blasting makes it possible to efficiendy mine materials close to industrial sites and other infrastructure like pipelines or high-voltage power lines, which ultimately results in the optimized exploitation of the deposit.