Precision CNC-machined isostatic graphite vacuum-furnace heaters, susceptors, brazing fixtures, wafer carriers, and graphite nuts/bolts made to customer CAD drawings.
From intricate serpentine vacuum-furnace heating elements and threaded graphite tie-rods to pocketed brazing trays and RF induction susceptors, custom graphite components demand tight CNC dust-controlled machining paired with consistent grade properties (electrical resistivity, CTE, and density). Selecting the exact graphite grain size and resistivity ensures repeatable furnace power curves and zero part distortion during thermal cycling.
We quote both bare precision-machined isostatic parts and post-machining halogen-purified (<5–20 ppm ash) or pyrolytic-carbon / CVD-SiC surface-sealed components.
| Property / Metric | Nominal Reference Value (Grade Dependent) |
|---|---|
| Machining Tolerances | ±0.02 to ±0.05 mm standard on precision features |
| Electrical Resistivity | 9–16 µΩ·m (grade-matched for resistive heaters) |
| CTE Options | 3.8–5.8 × 10⁻⁶ /K (CTE-matched grades available for SiC coating) |
| Grain Size Options | Ultra-fine 2–5 µm (EDM/micro-detail) to 10–15 µm structural |
| Purification | Post-machining Cl2/freon thermal purification to <5–20 ppm ash |
Reference values reflect typical sintered, fused, or wrought grades. Exact batch test figures are confirmed on your written quotation and accompanying lot Certificate of Analysis.
Reference your 2D PDF + 3D STEP drawing, operating temperature and atmosphere, required ash purity, whether resistive heating (resistivity-critical) or structural use applies, and prototype vs. production batch size.
Include target quantity, destination country/postal code for express air freight calculation, and any special cleanroom bagging or certification requests.
Prepare Custom Graphite Components RFQ ↗Complementary furnaceware, substrates, PVD consumables, and refractory hardware frequently ordered together.
TB-GR-PLPrecision ground fine-grain and isostatic graphite sheets, setter plates, EDM blocks, rods, and impermeable resin-impregnated bipolar plates.
TB-GR-FLTHigh-purity graphitized soft felt rolls, CNC-machined rigid graphite insulation cylinders/boards, and activated battery electrode felts for vacuum furnaces and energy storage.
TB-GR-CRPrecision CNC-turned fine-grain isostatic graphite crucibles with low ash content (<20–500 ppm) for non-ferrous, precious metal, alloy, and crystal-growth melting.
TB-MO-CMP99.95% pure molybdenum, lanthanated Mo-La, and TZM alloy sintering boats, rolled sheets, rods, crucibles, fasteners, and carbon-free vacuum furnace heat shields.
Submit your purity grade, geometry, quantity, and documentation requirements. Every order includes the producing mill's batch Certificate of Analysis (COA) and pre-shipment dimensional verification.