About Us
Trusted Factory-Direct Expertise
Yanyun Technology: Direct Manufacturer of High-Purity Ceramic Components
We are a specialized B2B manufacturer of alumina and zirconia ceramics, delivering contamination-free refractory solutions for wide-bandgap semiconductors, solid-state batteries, and deep-tech AI material synthesis.
As an agile direct factory, we supply high-purity crucibles, saggars, and complex CNC-machined OEM parts directly to researchers at MIT, UC Berkeley, LBNL, and UCSD.
We deliberately reject the mass-production shortcuts of modern dry-pressing. By relying entirely on the rigorous slip-casting method, we guarantee an exceptionally high-density, 0% water absorption structure. This meticulous approach ensures zero particle shedding, defending your highly sensitive precursor batches from Fe, Si, and Na trace impurities during critical high-temperature sintering.
Numbers That Prove Our Strength
Trusted Ceramic Crucible Manufacturer with Proven Engineering Capability
Driven by uncompromising craftsmanship, Yanyun Technology secures your batch yield in advanced science and industrial high-temperature applications by eliminating contamination risks.
Quality Philosophy
At Yanyun Technology, we believe quality is your final line of defense. Our engineers continuously optimize our traditional slip-casting formulas to achieve maximum density and thermal stability. Because we understand that in deep-tech R&D, a single instance of crucible flaking or trace metal leaching can ruin months of algorithm-driven synthesis, we deliver 0% absorption ceramics with uncompromised contamination defense.
Vision Forward
Backed by our Global Operation Center in Nanjing and our Manufacturing Base in Yixing, we serve as your agile prototyping partner to support your lab-to-fab transition with speed and precision. We go far beyond standard blanks. From high-throughput sample holders for AI labs to highly complex CNC-machined geometries, we manufacture directly from your CAD drawings with absolute zero MOQ constraints.
Trusted by MIT, UC Berkeley, LBNL, UCSD, and Global Industry Leaders.

Featured Engineering Case: Precision CNC Machining
See how we bypassed US distributor markups to machine a custom Ø21mm in-situ sample carrier for an advanced battery materials startup. By combining high-density alumina blanks with diamond-tooled CNC milling, we achieved exact ±0.1mm tolerances directly from the client’s DWG files—with zero custom mold fees.
Global Operations & Procurement Compliance
Corporate Architecture & Authorized Entities
To optimize our global supply chain, export logistics, and compliance with diverse institutional procurement systems, our operations are structured through two affiliated entities:
Nanjing Yanyun Technology Co., Ltd.: Operating as our global commercial center, this entity manages online retail, website operations, and serves as the authorized primary export entity for global B2B contracts.
Yixing Yanyun New Materials Technology Co., Ltd.: Operating as our core specialized ceramic manufacturing base, and the legacy registered vendor for specific government and university research facilities.
For B2B and Institutional Buyers: Depending on project specifications, export routing, and vendor registration requirements, Proforma Invoices (PI) and Wire Transfers (T/T) may be issued and processed by either entity. Both are fully authorized to execute international trade contracts on behalf of our manufacturing group.
Quality & Validation Center
Independent, Third-Party Validated Quality
Our quality isn’t just an internal claim; it’s analytically proven. We regularly submit our ceramic products to accredited third-party institutions to validate material purity, structural density, and 0% porosity.
Our ISO 9001 Certification
This certification ensures our quality management system meets strict international standards, guaranteeing process consistency and product reliability from custom inquiry to final delivery.






