Complete hot zone solutions — from individual parts to fully assembled hot zones.
Baotan Graphite supplies graphite hot zone components to furnace OEMs and end-users worldwide. From individual replacement parts to complete retrofit kits — all from a single source, ensuring material consistency and dimensional compatibility.
Our components are used in vacuum brazing, sintering, heat treatment, and melting furnaces across aerospace, automotive, medical device, and tooling industries.
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| Category | Components | Typical Grades |
|---|---|---|
| Heating Elements | Rod, tube, strip, mesh heaters | Isostatic, extruded graphite |
| Heat Shields | Circular, side, top/bottom shields, multi-layer packs | Rigid graphite felt, CFC |
| Structural Parts | Support trays, pillars, guide rails, brackets, base plates | Isostatic graphite, CFC |
| Fasteners | Bolts, nuts, washers, threaded rods, pins | Extruded, isostatic graphite |
| Rotating Parts | Fan blades, impellers, rotors, bearings | Fine-grain isostatic graphite |
| Custom | Any shape per drawing — crucibles, nozzles, boats, fixtures | Per application |
| Parameter | Value |
|---|---|
| Max Operating Temperature | 2,200°C (vacuum) / 1,800°C (inert gas) |
| Material Grades | Isostatic, extruded, molded, CFC, rigid graphite felt |
| Density Range | 1.72 – 1.90 g/cm³ |
| Ash Content | ≤ 50 ppm (standard) / ≤ 5 ppm (high-purity) |
| Flexural Strength | 30 – 65 MPa (grade-dependent) |
| Thermal Conductivity | 80 – 140 W/m·K |
Isostatic (5–20μm grain, high strength), extruded (50–800μm, economical), and vibration-molded (medium strength) grades. Operating range 500–2800°C in vacuum/inert gas. Thermal conductivity 60–140 W/m·K. 5-axis CNC for complex geometries. PG coating for extended life. Max sizes: heaters 800mm×2000mm, shields 1500mm×1200mm, trays 1000kg capacity.
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