In the late 1960s and early 1970s Consarc developed and patented the coaxial electroslag remelt (ESR) furnace, and demonstrated the metallurgical benefits of melting in a coaxial furnace with a high fill ratio. Since that time, this ESR furnace design has become the standard for melting high quality materials.

Some features of the modern Consarc ESR are:

• Fully coaxial
• Precision electrode drive
• Fully automated melt control
• X-Y electrode centering
• Inert gas melting capable
• Dry air melting capable
• Slab ingot capable

Consarc has built the world’s largest single electrode static ESR with a final ingot weight of 110,000 kg. Consarc also builds electrode change furnaces utilizing withdrawal melt stations and two head three melt station furnace combining both single electrode static and multiple electrode withdrawal melting into one system.