Rongjie Technology: High-Efficiency Copper 3D Printing Solution with 800W Dual-Laser System and Precision Material Control

The 2025 Formnext Shenzhen exhibition attracted more than 20,000 professional visitors, while Panda3dp.com’s livestream drew over 34,000 online viewers.

At the booth of Rongjie Technology—a metal 3D printing specialist founded in 2013—General Manager Wang highlighted the company’s breakthroughs in copper alloy printing, driven by demand in 3C electronics and thermal management. By combining high-power lasers, optimized optical paths, and proprietary material development, Rongjie has built a copper printing platform recognized for its efficiency and precision.

1. RJM400: 800W Dual-Laser Flagship for High-Reflective Metals

Rongjie’s latest RJM400 metal 3D printer was designed specifically for copper and other high-reflectivity alloys.

· High-Power Dual Lasers: Two 800W lasers deliver the energy density needed to stabilize the melt pool and ensure full densification of copper parts.

· Optimized Optical Path: Custom optical designs minimize reflection losses, a long-standing challenge in copper printing.

· Efficient Build Envelope: With a build size of 400 × 400 × 400 mm, it supports both small-batch precision parts and larger industrial components.

2. Materials Expertise: From Copper to Superalloys

Rongjie’s strength lies not only in equipment but also in materials. Over years of research, the company has developed powders optimized for laser processing, with fine-tuned particle size distribution and surface treatments enhancing flowability and absorption.

Beyond copper alloys, its portfolio includes titanium, aluminum, stainless steels, and superalloys—providing clients with a broad foundation for multi-material applications.

3. Core Applications: 3C Electronics and Thermal Management

· Heat Sinks & Cold Plates: Efficient copper structures designed for electronics and server cooling.

· Inductors & Connectors: High-conductivity copper parts critical for precision electronics.

· Emerging Sectors: Demand from EV battery cooling and high-frequency components.

4. Broad Equipment Portfolio and Industrialization

In addition to the RJM400, Rongjie’s lineup includes the RJM100, RJM150, RJM200, RJM300, and large-format RJM600. This tiered product strategy supports clients from R&D through to industrial-scale production.

5. Market Adoption and Recognition

Rongjie’s copper-focused systems have already been deployed by major 3C and electronics manufacturers in China, validating both performance and reliability. Wang emphasized that customer trust has been won not only through equipment sales but also through ongoing technical support and material solutions.

By addressing one of metal additive manufacturing’s toughest challenges—efficiently printing high-reflectivity copper—Rongjie Technology has carved out a strong competitive position. With its 800W dual-laser RJM400, proprietary powder expertise, and proven applications in electronics and thermal management, the company is enabling copper 3D printing to move from experimental to industrial reality. Its integrated approach of “equipment + materials + applications” demonstrates how focused innovation can unlock mass-market opportunities in high-value sectors.