Harper International

Harper International is a global leader in complete Thermal Processing solutions and technical services essential for the production of advanced materials, including Furnaces, Kilns, Calciners, and Ovens. Harper designs systems from research scale to full production line operations, with a focus on processing materials at high temperatures and in non-ambient atmospheres.

Our expertise is in the scale up and production of advanced materials such as carbon fiber, ceramic and metal powders, nano materials, nuclear materials, and carbon materials. Our toolbox of systems includes Slot, Rotary, Pusher Tunnel, Belt Conveyor, Vertical Conveyor, Box, Elevator, and Ultra-High Temperature (UHT) furnaces, and well as Oxidation Ovens for carbon fiber.

Our process expertise includes calcination, graphitization, carburization, controlled oxidation, oxide reduction, purification, pyrolysis, drying, reduction, solid-solid reaction, gas-solid reaction, metalizing, debinding, and waste remediation