The Department of Science and Technology of Shandong Province recently announced the 2025 list of approved projects under the Central-Guided Local Development Fund. Longkou Hengga Intelligent Equipment Co., Ltd, together with researchers from Harbin Institute of Technology, has successfully secured a ¥1 million ｇｒａｎｔ for the project titled “Key Technologies and Industrial Demonstration of Optical-Mechanical Coupled Multi-Axis Laser Machining for Ultra-Hard Brake Disc Materials.”

Driven by the implementation of the Euro 7 / China 7 emission standards, traditional cast iron brake discs— notorious for particulate emissions — are being replaced by ultra-hard materials such as tungsten carbide and carbon-ceramic composites. However, machining these advanced materials has been a challenge for the industry due to high processing difficulty, expensive foreign laser systems, and imbalanced efficiency versus cost.

Hengga Intelligent has independently developed a multi-axis femtosecond laser machining tool featuring optical-mechanical coupling and precision motion synchronization. It achieves a machining accuracy of ±0.005 mm and repeat positioning accuracy of ±0.003 mm, with a yield rate exceeding 90%. This innovation cuts production costs drastically and breaks the long-standing technological monopoly of Swiss and German manufacturers.

The company's well-established product line—including Brake Disc Vertical Lathes, Dual-Tool Vertical Lathes, Brake Disc Drilling and Tapping Machines, and Brake Disc Grinding Machines—will complement the new laser system. Together, they will form a seamless manufacturing chain that integrates rough processing and precision finishing for brake discs.

The project is expected to reach an industrial output of ¥10 million upon completion, reduce particulate emissions by about 40%, and fully comply with Euro 7 and China 7 standards. Beyond the automotive sector, its technological applications will extend to aerospace components and medical device manufacturing, contributing to sustainable and high-quality industrial development in China.