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Junjing Technology - Ceramic/Metal 3D Printing

HardwareBeijing, ChinaFounded 2023· One of 1708 Hardware companies tracked by AMPulse

Develops sinking SLA/DLP 3D printers for high-precision ceramic and metal components using 4K optical engines.

CEO / Founder
蒋大梅 (Jiang Damei)
Team Size
11-50
Stage
Active
Total Funding
$4.5M
Latest Round
Pre-Series A

Technology & Products

Key Products

Sinking DLP Ceramic/Metal 3D Printer (L153.6×W86.4×H200mm); Sinking DLP Ceramic/Metal 3D Printer (L384×W216×H200mm)

Technological Advantage

High-precision photopolymerization process for ceramics and metals; supports topology optimization for advanced part design.

Differentiation

Value Proposition

Enables high-precision production of complex ceramic and metal parts using sinking SLA/DLP technology, featuring 4K resolution for superior detail.

How They Differentiate

Utilizes sinking SLA/DLP technology with 4K resolution to compete on precision and material versatility in the ceramic/metal AM segment.

Market & Competition

Target Customers

Industrial users requiring high-precision ceramic and metal parts.

Industry Verticals

Industrial

Competitors

3DCeram; X-Jet

Growth & Milestones

Growth Metrics

Raised tens of millions of RMB in Pre-Series A (2022); Developed the first domestic sinking 4K ceramic DLP printer; Product line includes JJ-150 and JJ-300 series for industrial ceramics.

Major Milestones

Showcased products at TCT Asia 2026

Notable Customers

Tsinghua University; Peking University; Southern University of Science and Technology; Various Chinese aerospace research institutes

https://www.tsinghua-3d.com

Why this company matters

Junjing Technology occupies a narrow but technically demanding niche in additive manufacturing: high-precision photopolymerization of ceramic and metal slurries. While most ceramic AM relies on binder jetting or extrusion, Junjing adapts the sinking SLA/DLP architecture—where the build platform rises from a vat of material—to handle dense, viscous slurries that would defeat conventional DLP systems. This approach targets industrial users who need fine detail in materials like alumina, zirconia, or stainless steel without the surface finish compromises of powder-bed processes.

The company's core products are two sinking DLP printers: the JJ-150 (153.6 x 86.4 x 200 mm build volume) and the JJ-300 (384 x 216 x 200 mm). Both integrate 4K optical engines to achieve high resolution across the build area. The process supports topology optimization, enabling lightweight lattice structures and internal channels that are difficult to produce with subtractive methods. Junjing's technology is classified under vat photopolymerization (VPP) for ceramics and composites, and metal AM, though the metal parts require subsequent debinding and sintering.

Initial customers include Tsinghua University, Peking University, and the Southern University of Science and Technology, along with unnamed Chinese aerospace research institutes. These relationships suggest early traction in R&D and prototype production rather than serial manufacturing. The company is incubated at Zhongguancun Science Park and collaborates with Tsinghua on slurry chemistry, including a patented ceramic slurry preparation method. Junjing raised approximately $4.5 million in a Pre-Series A round in 2022 and debuted its printers at TCT Asia 2026.

Junjing's competitive moat rests on the combination of sinking DLP mechanics and 4K optics optimized for ceramic and metal slurries—a pairing that few global players, including 3DCeram and X-Jet, have pursued at this price point. The open question is whether the addressable market for high-precision ceramic DLP parts is large enough to support a dedicated hardware company, or whether Junjing will remain a niche supplier to Chinese research labs. Its ability to move from university partners to production-grade applications in aerospace or medical devices will determine its long-term position.