Xietong Innovation High-Tech upgrades continuous-fiber 3D printing, cuts prototype tooling time from months to 5 days

Xietong Innovation High-Tech, a Shenzhen industrial AM company based in Baoan's Xinqiaodong advanced manufacturing park, was featured in a People's Daily report on the city's 3D printing sector. Co-founder Luo Meng said the company completed a technology upgrade this year on its continuous-fiber composite printers, developing in-house pre-impregnated fiber preparation, adaptive impregnation, and in-situ curing processes to address longstanding fiber breakout and weak interlayer bonding issues. A new sensor control system now automates switching between high- and low-temperature materials, letting machines run unattended. The company operates three lines, continuous-fiber, metal, and ceramic printing, serving aerospace and mold customers and producing structural base parts for humanoid robots; Luo said the new process compresses part validation from a traditional 2-3 month tooling cycle to about 5 days.

The upgrade targets a known frontier in polymer AM: continuous-fiber composites combine light weight and high strength but have struggled to scale beyond prototypes due to fiber-matrix bonding limits. Xietong's Baoan cluster co-locates printer, laser, and precision-instrument makers, a proximity the report credits for faster iteration cycles. Shenzhen's 3D printing equipment output rose 58.1% year-on-year in H1 2026, with exports up 127.5% to RMB 8.27 billion, 86% of national exports in the category. For buyers evaluating continuous-fiber suppliers, process repeatability and unattended runtime are now the differentiators to check, not just fiber content claims.