Gongda Laser's 500 W Continuous Green Laser: Five Years from Prototype to Over 1,000 Installations

At TCT on October 14–16, 2026, Nanjixiong saw Gongda Laser and Xihe Additive present a product with five years of development behind it: a 500 W continuous green fiber laser.

Five years earlier, the first 500 W QCW single-mode green laser was developed. After repeated iterations, process validation, customer feedback and scaled installation, its return to the exhibition marks a new stage of engineering and industrial validation.



Green light and highly reflective materials

Copper absorbs less than 5% of infrared laser energy but can absorb more than 40% at 532 nm. Better coupling addresses energy deflection, spatter and lack-of-fusion problems associated with infrared processing, supporting reliable copper alloy printing.



These physical advantages still require long-term production validation: output stability, continuous reliability, consistency between machines and performance during complex, extended jobs all determine industrial suitability.

Five areas of development

Stability: RMS power fluctuations below 0.2%
Stable output determines consistent energy input. Measured RMS fluctuations below 0.2% constrain power variation and support long processing runs.



Durability: over 25,000 operating hours on one unit
A single laser has accumulated over 25,000 hours. Operational data support reliability evaluation and subsequent design and maintenance improvements.



Scale: over 1,000 installations
Progressing from prototypes to this installed base requires development, integration, manufacturing and customer validation. Feedback from different machines and locations continues to inform improvements. Nanjixiong learned that Xihe has developed end-to-end manufacturing capabilities, with more than 100 green-laser printers operating and plans for deployment at the thousand-machine scale over the next three years.



Extended builds: over 300 hours and 99.9% copper density
The source reports typical single builds exceeding 300 hours and pure copper density of 99.9%, supporting complex thermal components and copper alloy heat exchangers. Production tests with 500 W sources have batch-printed copper thermal parts without process interruption or parameter drift, reaching conductivity of 101.5% IACS.



Further development: 500 W to 4,000 W
Gongda has advanced continuous green sources to 4,000 W at near-single-mode quality. A 227 W ultraviolet fiber laser further expands its short-wavelength range.



From source performance to long-term AM validation

The 500 W single-mode continuous source is used in production printers. Scaling across machines, batches and processes requires sustained consistency.

Collaboration with Xihe supports this validation. Drawing on parent company Gongda's high-power green fiber expertise, Xihe connects sources, printing equipment and services, targeting copper, aluminum and refractory materials. Its systems use proprietary 532 nm single-mode sources, with performance differences in multi-laser overlap areas no greater than 5%, supporting precision copper AM.



Nanjixiong's observation: industrialization requires sustained performance

The value of green light for copper printing is recognized. The distinction lies in converting laboratory advantages into stable daily production.

The five-year record—25,000 hours, over 1,000 source installations and 300-hour builds—demonstrates both source capability and a path from light source through equipment to service.

Nanjixiong previously reported Gongda's Series C financing of several hundred million yuan, co-led by Fortune Capital and Guanghe Venture Capital, with industrial investors including Innolight and Sany. Funds strengthen core green fiber technology and high-power leadership. Investment and production data together suggest an opening for industrial deployment.

AI-translated from an article by Xiaoruanxiong on Nanjixiong, originally published on 2026-10-15. Text and images retain the original source attribution.
Read the original Chinese article