BLT has successfully produced over 100,000 copper parts using its BLT-S400 LPBF system.

BLT has successfully produced over 100,000 copper parts using its BLT-S400 LPBF system. The company achieved this volume by utilizing an 8-laser configuration and extending the build chamber length to 450 millimeters to increase throughput for small, high-density components such as heat sinks and optical modules. The production workflow includes proprietary powder development, parameter optimization, and automated post-processing, supported by predictive fault management and thermal control systems to maintain consistency during high-load runs.

Copper additive manufacturing has historically faced challenges due to the material's high reflectivity and thermal conductivity, which often complicate laser-based processing. While competitors like EOS and AMCM have focused on large-scale aerospace components, BLT is targeting the high-volume electronics and semiconductor sectors. By moving beyond the shadow of secret, low-volume pilot projects, this milestone demonstrates that copper LPBF is transitioning into a viable solution for mass production of small-format industrial parts, addressing a critical gap in the thermal management supply chain.

BLT has established a baseline for high-volume copper production that requires other hardware providers to prove similar repeatability at scale. For manufacturers, the focus must now shift from feasibility to cost-per-part analysis and the long-term reliability of these automated lines in 24/7 production environments.