When the Metcalf Mill needed to replace skirt liners in the chutes below the dry feeder bins, they knew the solution would need to be unique. The liners for the 26 chutes had not been replaced since they were installed and there was no way to enter the bin and empty out the ore. If they could get a dozer inside the bin, then they could empty it. But how do you get a D-6 dozer through the side of a building 20 feet in the air? You call Tri Star Design.
