Most ceramic component makers buy powder from trading companies, then sinter and finish. We synthesize our own Si₃N₄ and ZrO₂ powders, then sinter and machine in the same Hangzhou facility. The vertical integration delivers 30–50% lower material cost, complete lot traceability from raw silicon, and shorter lead times — particularly valuable on production-volume OEM programs.
Many ceramic factories advertise "in-house manufacturing" — most actually outsource powder synthesis and finishing, doing only the sintering step in-house. We operate all three stages in one facility, with hand-off between stages happening physically within the same factory.
| Manufacturing Stage | Unit | Ceramitell | Typical Competitor |
|---|---|---|---|
| Raw Material Sourcing | stage | Bulk silicon / zirconium feedstock | Bulk silicon / zirconium |
| Powder Synthesis | stage | In-house | External (trading company) |
| Powder Classification | stage | In-house | Some in-house |
| Forming (CIP / Slip / Injection) | stage | In-house | In-house |
| Sintering | stage | In-house | In-house |
| Diamond Grinding | stage | In-house | Some outsourced |
| Final Lapping / Polishing | stage | In-house | Often outsourced |
| Quality Inspection (CMM, SEM) | stage | In-house | Some outsourced |
| Lot Traceability Span | stages | Raw silicon → finished part | Powder receipt → finished part |
Each stage runs as a self-contained operation with its own quality gates and metrology. Material flows physically through the factory — no off-site shipping between stages, no quality data lost in the hand-off.
Si₃N₄ powder via direct nitridation of silicon at controlled temperature/pressure. ZrO₂ powder via co-precipitation with yttria stabilizer dissolved in the precipitation chemistry — gives uniform Y₂O₃ distribution. Output: ≥99.5% purity, 0.5–2 μm median particle size, BET 10–25 m²/g.
Multiple forming routes: cold isostatic pressing (CIP), slip casting, injection molding (for complex shapes), and dry pressing (for simple geometries). Sintering on multiple furnace lines — pressureless sintering for general production, hot pressing for high-density armor and balls, HIP for precision bearings.
Diamond grinding for tight tolerance (±0.005 mm), lapping for Ra 0.02 μm surface finish on precision balls and bearings, CMM dimensional verification, SEM analysis for particle generation specs (semiconductor grade), packaging with lot cert documents. Final inspection sign-off per ABMA, ISO, or customer-specific quality plan.
A mid-tier Japanese dental ceramic block manufacturer was buying Y-TZP zirconia powder through Japanese trading companies at premium pricing. After qualifying our Y-TZP-A medical-grade powder (3 lots of qualification testing), they switched to direct purchase. Material cost dropped 42% while meeting the same dental restoration ceramic spec. The qualification process worked specifically because we synthesize our own powder — they could trace from the raw zirconium through to their finished dental block.