Dakota Equipment Manufacturing Inc. (DEMI) is an equipment manufacturer & mobile service maintenance leader in the mining & aggregate industries. We are based in the United States with our manufacturing facility in Aberdeen, South Dakota, and our southwest service shop in El Mirage, Arizona. DEMI offers a wide range of services including equipment maintenance, replacement parts & wear media installation, equipment design & plant layout, equipment rebuilds, custom turn-key crushing & screening operations all tailored to your specifications.