Intro: Producing a high-quality exhaust manifold is an art backed by rigorous engineering. It’s not just about pouring metal; it’s about controlling air flow and ensuring a perfect seal. Here is how Dandong Pengxin transforms a CAD drawing into a finished precision component.
1. Simulation-Driven Design (CAE)
Before the first mold is made, our engineers use CAE (Computer-Aided Engineering) software to simulate the pouring and solidification process. This identifies potential "hot spots" or air pockets, allowing us to optimize the gate and riser system for a defect-free casting.
2. Advanced Molding & Automation
We utilize both Shell Molding and Resin Sand Casting. Our 66,000 m² facility is equipped with automated production lines to ensure consistency and scale.

Above: Our modern smart manufacturing workshop featuring synchronized robotic arms for high-volume, precision output.
3. Integrated CNC Machining
A manifold is only as good as its seal. Our facility features high-precision CNC machining centers. We control the flatness of the mounting flanges within 0.05mm, ensuring a leak-proof fit for turbochargers and engine blocks. By integrating casting and machining under one roof, we streamline the supply chain and reduce lead times for our global partners.
Above: A close-up of our precision CNC machining center finishing a manifold flange to ensure perfect flatness and seal integrity.
Conclusion: With 67 years of manufacturing history and a 90% export rate to Europe and North America, our manufacturing process is designed to meet the most demanding automotive standards.

Above: A close-up of our precision CNC machining center finishing a manifold flange to ensure perfect flatness and seal integrity.
Conclusion: With 67 years of manufacturing history and a 90% export rate to Europe and North America, our manufacturing process is designed to meet the most demanding automotive standards.