GERMANY Wirtgen launches a new surface miner for selective extraction

摘要

Wirtgen's 220 SM 3.8/220 SMi 3.8 surface miner selectively mines raw materials up to a cutting depth of 350 mm and a uniaxial compressive strength of 35 MPa. Thanks to its 3.8 m wide cutting drum designed specifically for soft rock mining, the compact surface miner achieves maximum productivity at low operating costs and is perfect for use in small to large mining operations.