Harper Furnace Technology Enables High Performance Silicon Anodes

Buffalo, NY – High temperature thermal process solutions developed by Harper International Corporation are enabling production at several silicon anode battery material companies in 2024. Silicon anode material offers significantly higher specific capacity than traditional graphite anode materials enabling hig... (read more)

Buffalo, NY – A custom engineered, 24-inch rotary tube furnace built by Harper International for Heirloom Carbon Technologies (San Francisco, CA) is enabling America’s first commercial Direct Air Capture (DAC) facility in California’s Central Valley. Heirloom’s DAC facility uses calcium carbonate to remove already-emitted CO2 from the atmosphere. The furnace uses... (read more)

Harper International Receives Order for Cementitious Materials Research
Buffalo, NY - Harper International, world leader in thermal processing solutions for advanced materials, has been awarded a contract to engineer and manufacture a Rotary Tube Furnace for Cementitious Materials Research to be installed at University of Kentucky’s Center for Applied Energy Rese... (read more)

Harper International, a world leader in thermal processing solutions for advanced materials, announces the launch of its Lab-Scale Rotary Furnace. The Lab-Scale Rotary Furnace allows producers of advanced materials to optimize their process parameters on a small scale to ensure capability and quality requirements are achieved prior to investment in production-scale thermal process equipm... (read more)

Harper’s fluid bed reactor systems are uniquely manufactured to meet the specific requirements of each customer. Our systems are designed for continuous processing of your advanced material, providing more effective chemical reactions and heat transfer.

Fluidized bed equipment is extensively used in coating of particles to obtain products with modified superficial properties... (read more)

Materials for energy generation applications are becoming more critical as society looks towards alternative means of power beyond fossil fuel-based methods. Harper has been a critical partner for nuclear fuel processing furnace and kilns for decades to companies developing new energy generation technologies and optimizing their existing operations.

Harper has become the world... (read more)

Like our customers, Harper is perpetually on the cutting edge of our industry. Both academic and industrial organizations trust Harper International for graphene production equipment, including our high temperature kilns, furnaces, and oven, for developing advanced materials like Graphene and other advanced carbon materials in controlled and specialty atmospheric environments and at temp... (read more)

Harper's full integrated pilot scale Carbon Fiber systems offer features and conditions aligned with production scale systems for customers making higher amounts of material for sampling and trialing yet at smaller quantities than full scale Production Lines.

Pilot line systems are ideal for process optimization, as well as for producing adequate volumes of materials for market de... (read more)

When you’ve reached production scale, Harper’s 3M and 4M Carbon Fiber lines are the ideal choice, focused on process effectiveness, product quality, and operational optimization. Born from our years of experience in helping customers from around the world grow from fractions of kilograms per hour to tons per year, Harper’s unique expertise with Carbon Fiber production e... (read more)

Harper pioneered the Microline® concept based on flexibility and versatility to change and modify equipment parameters for the needs of customers in Carbon Fiber research for experimentation with traditional or emerging precursors, process tweaking and development of samples for up to 1.5 tons per year. Our system accommodates line speeds ranging from 0.1 m/min to over 1 m/min and to... (read more)

Even our smallest scientific scale Carbon Fiber research and development line emulates real world production across all equipment, yet delivers the precision and flexibility needed to aid research efforts and future scale up. Requiring only one person to operate, this inventive system is designed to handle very few filaments – from 10 to 20 filaments up to 6k, and operates at about... (read more)

Harper’s pusher furnaces and tunnel kilns are ideal for processes requiring precise control of temperature and atmosphere, for those with longer residence times that require exact control of the heat up rate of the product (temperature profile), and those with a lower gas/solid reaction. Our focus is on systems that offer the greatest operating life, lowest operating cost, and high... (read more)

Harper International Completes Testing of Battery Materials in Rotary Furnace

Harper International, world leader in customengineered thermal processing solutions for advanced materials, is proud to announce the completion of trials for cobalt-pyrite concentrate using a rotary furnace. Harper, through its Ignite Program, which is used for pilot testing and scale-up trials re... (read more)

Same innovation, now comes standard.

Harper International’s HC Series™ Rotary Furnaces provide superior temperature uniformity for the continuous processing of advanced materials. Providing the same trusted innovations as our custom furnace offerings, the HC Series allows a quicker lead time through pre-engineered designs.

These standard Rotary Fur... (read more)

Microwave furnace technology can now be beneficially utilized for advanced material processing on a commercial scale. Trust Harper’s years of industry leadership for the careful design of microwave equipment based on your material’s unique properties to yield a superior product.

Benefits of Microwave Heating

Trust Harper’s expertise to optimize your furnac... (read more)

Harper's fluid bed furnaces are uniquely manufactured to meet the specific requirements of each customer. Our systems are designed for continuous processing of your advanced material, providing more effective chemical reactions and heat transfer. (read more)

Harper's mesh belt conveyor furnaces and kilns are designed for the continuous processing of parts as well as advanced materials such as granular, powder, or particulate aggregates in high purity and specialty atmosphere environments at temperatures up to 2000°C. (read more)

Every Harper rotary tube furnace is designed for the customer's unique specifications. We bring innovative solutions to designs for continuous processing of advanced materials such as granular, powder, or particulate aggregates in high purity and specialty atmosphere environments at temperatures up to 3000°C, including gas, electric and microwave heated systems. (read more)

Harper’s patented vertical furnace systems are our latest thermal processing innovation for powders and granular materials. Processing at temperatures up to 3000°C, Harper's vertical kilns are designed to maximize product uniformity and reaction time, provide better heat and mass exchange, and improve efficiency.

Learn more about processing powders in a vertical kiln here. (read more)

Interested in the pros and cons of different high temperature industrial furnace technologies? Harper is here to help guide you through identifying the ideal system for your unique process considerations, material characteristics, manufacturing parameters and facility constraints with our interactive chart. (read more)

Read about furnace design improvements that can maximize the utility of thermal processes while meeting critical needs of more difficult processes. Rotary furnaces are the go-to technology for high temperature processing of powdered materials, offering advantages of throughput and energy efficiency over other continuous, high temperature equipment. (read more)

Buffalo, NY - Harper International, world leader in thermal processing solutions for advanced materials, is pleased to announce they have been chosen by Westwater Resources, Inc. to conduct engineering scale-up and front-end engineering design for production scale thermal purification as part of the Definitive Feasibility Study (DFS) on the Coosa Graphite Project located in Alabama.

Buffalo, NY – Harper International, world leader in custom thermal processing solutions for advanced materials, is pleased to announce that its project in support of PUREgraphite, the U.S.-based subsidiary of Novonix Limited, has been selected to receive a US$5,577,738 grant under the Advanced Manufacturing Office FY20 Critical Minerals FOA (Funding Opportunity Announcement): Next-... (read more)

Harper offers clients access to a number of research and piloting facilities for thermal processing to help develop the most efficient and effective regime to meet their goal. We understand the importance of R&D necessary for the scale up of advanced materials. Using our depth and breadth of experience in thermal process programs, we partner with our customers in our Ignite® Prog... (read more)