Johnstown Specialty Castings Inc. produces the only hot rolled alloy steel liners in the world. These mill liners provide greater impact strength and wear life as compared to cast liners and are completely manufactured in the United States. The quality of this product is apparent in the tight tolerances delivered with the finished parts: plus or minus 1.6 mm to customer requirements. The cement, power, and mineral grinding industries are the primary purchasers of Johnstown mill liners.

Johnstown Specialty Castings Inc. produces the only hot rolled alloy steel liners in the world. These mill liners provide greater impact strength and wear life as compared to cast liners and are completely manufactured in the United States. The quality of this product is apparent in the tight tolerances delivered with the finished parts: plus or minus 1/16" to customer requirements. The cement, power, and mineral grinding industries are the primary purchasers of Johnstown mill liners.