Sieving Recovered Carbon Black (rCB)
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Elcan finds screening solutions to problems that other companies cannot. Find out why we have earned the nickname, “The Screening Experts.”
Sieving Recovered Carbon Black (rCB)
What is recovered carbon black (rCB)? Recovered carbon black is a sustainable alternative to virgin carbon black (vCB), produced by pyrolyzing end-of-life tires and rubber materials. Through this thermal decomposition process, hydrocarbons are removed, leaving behind a fine carbon-rich powder. rCB has gained momentum across industries for its lower environmental footprint, cost savings, and growing regulatory pressure to recycle materials. It is commonly used as a reinforcing filler in rubber products, black pigments for plastics and inks, and increasingly in battery electrode formulations and coatings.
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Why sieve rCB? rCB tends to be highly agglomerated, with particle clusters that are difficult to separate using traditional vibratory or ultrasonic screeners. Many applications require a narrow and consistent particle size distribution, particularly when rCB is reused in rubber compounding, thermoplastics, or as a conductive additive. Particle sizes below 50 µm are often required for injection molding or extrusion, while even finer sizes may be needed for battery and pigment applications. Achieving these fine cuts without screen blinding or material loss is critical for maintaining product performance and customer acceptance.
Elcan Industries has worked with multiple companies looking to reprocess and upgrade their recovered carbon black for use in high-value applications. Our Hi-Sifter screening system is uniquely capable of breaking apart rCB agglomerates and sieving the powder down to sizes as fine as 10 microns in a single pass, without the use of ultrasonics. The machine’s high-energy vertical force prevents blinding and allows consistent throughput of even the most cohesive powders.
All processing takes place at our ISO 9001-certified toll processing facility in Tuckahoe, NY, with the ability to run both R&D trials and full-scale commercial batches.
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