Harper is the most trusted partner in thermal processing technologies for the Carbon Fiber industry. Our value proposition in unequaled – with decades of industry experience and installations worldwide from small scientific research lines to full scale Carbon Fiber systems, our expert team lives to custom engineer systems that meet your unique needs, resulting in unparalleled versatility and reliability. Our clients from around the world trust Harper’s decades of experience in helping them grow from fractions of kilograms per hour to tons per year. Harper’s unique expertise is in linking the process steps offering a seamless and fluid production line with maximum efficiency, process effectiveness, product quality, and operational optimization.
Although Carbon Fiber is predominantly produced from polyacrylonitrile (PAN) and pitch, there is an increasing necessity for alternative, low cost and renewable precursors. Harper has the unique ability to adapt our technology to process nontraditional precursors throughout the entire thermal process. By using nontraditional precursors such as lignin, rayon, polyethylene, and blends, customers have the ability to lower their operating costs and reduce the residence time in the oven.
No other company in the world has both the engineering expertise and volume of installations in Carbon Fiber Slot Furnaces like Harper. We are continually pushing ourselves to improve the technology and bring design enhancements to our systems that results in better performance, increased energy utilization, and optimized end product properties for the client.
Learn more about Slot Furnaces.
Our state-of-the-art oven designs are available for tow-bands from 300mm to greater than 4000mm. Harper’s advanced oxidation systems incorporate a multitude of improvements beyond what’s available on the market today. For the client, our technology advancements equal faster oxidation through elimination of the chimney effect, improved velocity uniformity and range, assurance of temperature uniformity at a variety of flow rates, and optimal control of the reaction ultimately enhancing fiber quality.
Learn more about Oxidation Ovens.
Complete Process Lines
Our fully integrated Carbon Fiber Process Lines range from research scale lines for materials development to the largest scale production lines in the market today. 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 is in linking the process steps offering a seamless and fluid production line with maximum efficiency. Even our smallest scale Carbon Fiber systems emulates real world production across all equipment, yet delivers the precision and flexibility needed to aid research efforts and future scale up.
We have designed full systems throughout all line sizes, from research to production scale. Click here to compare the different Carbon Fiber systems, or watch a video to see the scale up from scientific lines to full scale production.
Learn more about: