أقطاب جرافيت متساوية الضغط وعالية النقاء للتصنيع بالتفريغ الكهربائي الدقيق.
Baotan Graphite supplies EDM electrodes to tool and mold makers worldwide. We stock a range of isostatic and high-purity graphite grades — including Toyo Tanso IG-series and SGL EK-series equivalents. For customers requiring specific imported materials, we can source and machine to your specifications.
Our 5-axis CNC capability handles complex electrode geometries with tight tolerances.
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| Grade | Grain Size | Density | Strength | Best For |
|---|---|---|---|---|
| Ultrafine Isostatic | 5 µm | ≥ 1.80 | ≥ 65 MPa | Fine detail, mirror finish, micro-EDM |
| Fine Isostatic | 8-10 µm | ≥ 1.78 | ≥ 55 MPa | General precision, ribs, cavities |
| Medium Isostatic | 15-20 µm | ≥ 1.75 | ≥ 45 MPa | Large electrodes, roughing |
| High-Purity | 5-10 µm | ≥ 1.82 | ≥ 60 MPa | Semiconductor-related EDM, clean apps |
Graphite electrodes machine 3-5× faster than copper on CNC. Lower tool wear during electrode fabrication.
Graphite sublimates at 3,650°C — no melting during EDM discharge. Superior wear ratio vs copper.
Low CTE means electrode dimensions remain stable under thermal load — critical for tight-tolerance cavities.
Send your electrode drawing. Quote within 24 hours.
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