A high-tech manufacturer in Zhejiang specializing in advanced filtration and energy storage materials required a jet molen to micronize activated coconut shell charcoal. The final powder needed a highly precise particle size to ensure optimal surface area activity. However, processing coconut shell charcoal presents two major industrial challenges:
High Abrasiveness: Coconut charcoal is highly abrasive, causing rapid wear and tear on traditional mechanical mills, which leads to frequent part replacements and costly downtime.
Material Contamination: As mechanical grinding media wear down, metallic impurities mix into the carbon powder, ruining its purity for sensitive chemical or battery-grade applications.
MQW Fluidized Bed Jet Milling with Ceramic Lining
To solve these challenges, Episch poeder utilized the MQW Wervelbedstraalmolen engineered with a full ceramic lining (Alumina/Silicon Carbide). Because jet milling relies on particle-to-particle collision driven by high-velocity compressed air, the charcoal grinds itself. By eliminating mechanical grinding media and lining all internal contact zones with advanced ceramics, Epic Powder completely eliminated the risk of metallic contamination while protecting the equipment from abrasion.
Material Trial Results
| Particle Size Parameter | Target Specification | Actual Trial Result |
| D50 (Median Diameter) | 8 μm | 7.0 μm |
| D100 (Maximum Top-Cut) | 20 μm | 18.0 μm |
Pore Structure Preservation: Unlike ball mills that can crush and collapse the internal micropores of activated charcoal, jet milling preserves the high specific surface area (SSA) and porosity required for high-end adsorption.
Zero Iron Contamination: Inductively Coupled Plasma (ICP) testing confirmed that the ceramic-lined system introduced zero metallic impurities into the final product.
Conclusie
This trial demonstrates that Epic Powder’s MQW jet mill is the definitive solution for processing high-purity coconut shell charcoal. We deliver the narrow particle size distribution your advanced applications require without sacrificing equipment lifespan.
Contact Episch poeder today to schedule your powder grinding trial!
Materiaal: Houtskool van kokosnootschalen
Deeltjesgrootte: D50=8μm， D100=20μm
Uitgang: 51kgs/h