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Rongsu Technology

HardwareSuzhou, ChinaFounded 2020· One of 1733 Hardware companies tracked by AMPulse

A high-end manufacturer of metal wire-fed additive manufacturing (3D printing) equipment and digital process solutions.

CEO / Founder
Fangda Xu (徐方达)
Team Size
51-200
Stage
Active
Total Funding
$28.8M
Latest Round
Series A
Key Investors
Henan Yuzi Group; Suzhou High-tech Rongxiang Fund; 苏高新金控; 苏高新创投; 涨泉基金; Ceyuan Capital; 新经济创投; 蔚丰盛宏基金; ZJU Holdings (Qizhen Jiuzhi); Jiuhe Venture Capital; FutureCap (Mingshi Capital); 明势资本

Technology & Products

Key Products

WAAM Equipment (STAR Series): AMmake S2 (Automated production), AMmake T1 (Research), AMmake A1 (Composite manufacturing), and AMmake R1 (Large-scale aerospace manufacturing); WLAM Equipment (Laser Series): Laser One (Industrial/Research), Laser Five, Robo L1 (Industrial platform), and Laser Mini (Desktop multi-laser wire-feeding printer); AMtwin: A full-process data management and digital twin software system for real-time monitoring and process traceability; VEAM Technology: Proprietary multi-laser coaxial wire-feeding technology for refined grain structure and high-precision printing; Services: 3D printing contract manufacturing (printing services), device services, and material process packages (24+ material types supported)

Technological Advantage

The core advantage lies in their proprietary VEAM (Multi-laser Coaxial Wire Feeding) technology and 8-axis linkage motion platforms, which enable high-speed, support-free printing of large structures. This is supported by their in-house software suite, including AMpath (CAM) and AMtwin (real-time process monitoring), ensuring quality consistency and stability during high-power (up to 15kW) printing.

Patent position

Rongsu Technology filed 16 patent families across all years, compared with 53 filed by Relativity Space. AMPulse analysis

Filing momentum
16 families filed 2022–2024, 0 in 2019–2021
Filed in
CN 94%WO 6%
Named competitors, AM patent families
Relativity Space 53

16 AM patent families in total. Recent years are still being published, so read a filing change against the same-office figure.

Differentiation

Value Proposition

Rongsu Technology specializes in Directed Energy Deposition (DED) wire-feeding additive manufacturing, transitioning from first-generation Wire Arc Additive Manufacturing (WAAM) to second-generation Wire Laser Additive Manufacturing (WLAM). The company aims to make 3D printing costs competitive with traditional manufacturing within five years by offering high deposition efficiency (up to 8kg/h), high material utilization (3-5x improvement over traditional methods), and significantly reduced production cycles for large-scale industrial metal components.

How They Differentiate

Rongsu differentiates by evolving from first-generation Wire Arc Additive Manufacturing (WAAM) to second-generation Wire Laser Additive Manufacturing (WLAM). Their self-developed 'VEAM' (multi-laser coaxial wire feeding) technology allows for independent control of laser beams, achieving a surface roughness as fine as 5μm—significantly smoother than traditional arc-based systems. They also offer a unique range from desktop-level metal printers (Laser Mini) to massive 6-meter tall aerospace platforms (AMmake R1).

Market & Competition

Target Customers

Industrial enterprises requiring large-scale metal parts, commercial aerospace companies, heavy equipment manufacturers, scientific research institutes, and educational institutions.

Industry Verticals

Aerospace; Shipbuilding and Marine Engineering; Energy (Nuclear, Hydro, and Petrochemical); Steel Metallurgy; Heavy Industry; Architecture and Art; Scientific Research and Education

Competitors

Nanjing Zhongke Yuchen (中科煜宸); TSC (鑫精合); Relativity Space

Growth & Milestones

Growth Metrics

revenue_growth: Reported 6x year-on-year growth in 2024.. delivery_volume: Cumulative delivery of over 600 finished parts with a total weight exceeding 12,000 kg.. funding_total: Accumulated nearly 100 million RMB in funding within a single year (2025-2026).. workforce_composition: Technical and R&D personnel account for over 50% of the total workforce.. operational_efficiency: Achieved a 4x increase in production speed through technical iterations; cost reduction of up to 60% compared to traditional manufacturing; production cycles shortened by over 50%.. market_reach: Secured orders from industry leaders including AVIC (中航), CRRC (中车), and CSSC (中船).

Major Milestones

{"year":2020,"event":"Company founded in Suzhou by Dr. Xu Fangda (Postdoc from University of Bath)."}; {"year":2024,"event":"Completed tens of millions of RMB in Pre-A+ funding led by ZJU Holdings and 9-Capital (May 2024)."}; {"year":2024,"event":"Launched the Robo L1 industrial-grade laser wire additive platform and Laser One research-grade series."}; {"year":2025,"event":"Completed Pre-A++ funding round led by Ceyuan Capital (March 2025)."}; {"year":2025,"event":"Completed A+ funding round from Rongxiang Capital (December 2025)."}; {"year":2026,"event":"Completed nearly 100 million RMB Series A funding round led by Henan Yuzi Group and Suzhou SND Rongxiang Fund (March 2026)."}; {"year":2026,"event":"Launched Laser Mini, a desktop-level multi-laser wire-fed metal 3D printer for research and education (March 2026)."}

Notable Customers

Aviation Industry Corporation of China (AVIC); CRRC Corporation Limited (CRRC); China State Shipbuilding Corporation (CSSC); Hong Kong Immigration Department (for large-scale metal sculpture projects); Hong Kong Architectural Services Department

https://www.rongsu.com

Recent coverage of Rongsu Technology

AM patents

AM-relevant patents linked to this company.

Patents
16
Granted
9
Families
16

Leading domains: process (16), equipment (7), material (6)

Filings by year: 2024: 11 · 2023: 4 · 2022: 1

  1. Method for multi-axis linkage single-pass printing of uniform variable width weld beads122057982 · CN
  2. A method for generating helical printing paths for arbitrary-shaped single-pass pipe models.121871125 · CN
  3. Variable-wall-thickness and low-deflection wire feeding printing path planning method118664026 · CN
  4. Multi-laser confocal processing mechanism, processing method and processing equipment121649560 · CN
  5. Additive method for thin-wall part with curved surface characteristics118322571 · CN

Funding rounds

  • Series A+nearly 100 million yuan2026-08-21Source
  • Series A¥100M RMB (approx $13.89M at CNY 7.2/USD)2026-03Lead: Henan Yuzi Group · Source: 36Kr, Perplexity Research
  • Series A+Undisclosed2025-12Lead: 苏高新金控; 苏高新创投 · Source: nanjixiong
  • Series AUndisclosed2025-09Lead: 涨泉基金 · Source: nanjixiong
  • Pre-A++数千万元 RMB (exact amount undisclosed)2025-03Lead: Ceyuan Capital · Source: Tracxn, Qimingpian; Nanjixiong

Why this company matters

AMPulse analysis, not a company disclosure

Rongsu Technology is a Suzhou-based manufacturer of metal wire-fed additive manufacturing equipment and digital process solutions. Founded in 2020, the company focuses on Directed Energy Deposition (DED) technology, transitioning from first-generation Wire Arc Additive Manufacturing (WAAM) to second-generation Wire Laser Additive Manufacturing (WLAM). Its stated goal is to make 3D printing costs competitive with traditional manufacturing within five years, targeting deposition rates up to 8 kg/h and near-100% material utilization.

The company's core technology is its proprietary VEAM multi-laser coaxial wire-feeding system, which uses six independently adjustable laser beams to create a controlled energy field for printing. This approach achieves surface roughness as fine as 5 μm, significantly smoother than conventional arc-based DED. Rongsu's product line spans from the desktop Laser Mini to the 6-meter-tall AMmake R1 aerospace platform, supported by in-house software including AMpath for CAM and AMtwin for real-time process monitoring and digital twin traceability.

Rongsu serves industrial enterprises requiring large-scale metal components, with reported customers including Aviation Industry Corporation of China (AVIC), CRRC Corporation, and China State Shipbuilding Corporation (CSSC). The company also works with Hong Kong government agencies on architectural metal sculpture projects. Its equipment supports over 24 metal material types and is used in aerospace, shipbuilding, energy, steel metallurgy, and heavy industry applications.

The company has raised approximately $28.8 million from investors including Henan Yuzi Group, Ceyuan Capital, and ZJU Holdings. It reported 6x year-on-year revenue growth in 2024 and cumulative delivery of over 600 finished parts weighing more than 12,000 kg. Technical and R&D personnel account for over 50% of its workforce. Rongsu competes with Nanjing Zhongke Yuchen and TSC in China, and with Relativity Space globally, differentiating through its dual arc-laser DED approach and broad product range from desktop to large-scale systems.