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Duane Kokkinen

Principal Emeritus, Senior Mechanical Engineer

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Duane Kokkinen has over 45 years of experience in the mining industry, including a quarter-century working for mining companies in northern Minnesota. He provides engineering and management experience in operations and maintenance for taconite processing facilities, including mining, concentrating, and pelletizing. His work encompasses managing all phases of the design of crushers and concentrators, including scoping studies, bankable feasibility studies, and final design. Duane has also participated in studies of mobile mining equipment and taconite pellet plants, and is knowledgeable about autogenous and semi-autogenous grinding systems.


(218) 262-8634

service area lead

mechanical engineering
mechanical engineering


BS, Mechanical Engineering, University of Minnesota - Twin Cities


Barr Engineering Co.
3128 14th Avenue East
Hibbing, MN 55746

Phone: 218-262-8600
Fax: 218-262-3460
Toll free: 800-225-1966