Complete graphite hot zone assemblies including heaters, susceptors, shields, support rings, crucible interfaces, and insulation for SiC PVT and high-temperature vacuum furnaces.
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Max Operating Temp | Up to 2800°C | Graphite grade, heater geometry, and insulation stack must match repeated high-temperature cycling. |
| Heater Resistance | Project-specific by drawing and power data | Resistance alignment helps avoid hot spots, uneven growth conditions, and recipe drift after replacement. |
| Hot-Zone Stack Coverage | Heater, shield, susceptor, support ring, crucible interface, and felt | Treating the hot zone as an assembly reduces interface mismatch between separately sourced consumables. |
Decision fit
Furnace builders, SiC process engineers, and maintenance teams replacing graphite hot-zone consumables.
Primary proof point
Up to 2800°C
Graphite grade, heater geometry, and insulation stack must match repeated high-temperature cycling.
RFQ trigger
| Decision Gate | What Buyers Should Check | Acceptance Evidence |
|---|---|---|
| Use-case fit | SiC PVT crystal growth hot zones; High-temperature vacuum furnaces; Semiconductor furnace graphite replacement programs | Application, furnace duty, and buyer-side validation goal are confirmed before material or process route selection. |
| Parameter baseline | Max Operating Temp: Up to 2800°C; Heater Resistance: Project-specific by drawing and power data; Hot-Zone Stack Coverage: Heater, shield, susceptor, support ring, crucible interface, and felt | Target ranges, report needs, and pass/fail criteria are written into the RFQ or sample approval plan. |
| Risk closure | Uneven heating: Collect power data, resistance targets, heater geometry, and thermal-field drawings before machining replacement parts.; Assembly mismatch: Review mating surfaces, stack height, support-ring clearance, shield spacing, and insulation compression as a complete BOM. | Drawing notes, inspection scope, cleaning, coating, packaging, and traceability controls are agreed before repeat supply. |
| RFQ completeness | Hot-zone assembly drawing or BOM with revision number; Operating temperature, atmosphere, and furnace interface; Graphite grade, purity target, coating, and insulation requirements; Heater voltage, current, target resistance, and terminal geometry where applicable | Engineering can return a quote direction without avoidable loops for drawing, purity, coating, quantity, or delivery gaps. |
Confirm furnace duty, drawing revision, target purity, operating atmosphere, and replacement cycle before material selection.
Match isostatic graphite grade, purification depth, coating route, and machining allowance to the process risk.
Machine graphite bodies, lids, rings, heaters, carriers, and insulation interfaces against the approved drawing pack.
Align dimensional checks, purity report format, cleaning, vacuum sealing, cushioning, and crate requirements before shipment.
Review how crucibles, hot-zone parts, and insulation fit a PVT growth workflow.
Check the factory workflow for drawing-based graphite part production.
Align inspection reports, sealing, cushioning, and export crate expectations.
Open the related page to continue technical qualification.
Open the related page to continue technical qualification.
Inquiry Email
Attach DWG, STEP, or PDF drawings and include purity, tolerance, quantity forecast, and delivery country.
Instant Chat
+8618857971991
Use WhatsApp for quick engineering clarification before a formal quote.
Yes. We can review 8-inch PVT hot-zone graphite parts when drawings, furnace interface data, and validation criteria are available.
Yes. A complete BOM is preferred because heater geometry, shields, support parts, and felt insulation interact thermally and mechanically.
Send the drawing, slot and terminal geometry, target resistance, voltage/current data, operating temperature, atmosphere, and observed failure mode.
