Harper International

Three graphite products systems (ultrahigh-temperature graphite rotary, graphite Harper HearthT and graphite pusher thermal system) facilitate spherical graphite production for batteries, pitch-based carbon fiber, metallic carbide powders and non-oxide ceramic sintering. The Harper Hearth operation has eight patented features that allow it to provide comprehensive time-at-temperature uniformity at minimal operating cost. The load carrier reduces load thermal mass, improves temperature uniformity and redistributes compressive stress and wear surfaces away from potentially corrosive or erosive environments.