Negative Pressure Casting System
At Kewei Casting Equipment Company, we are dedicated to pushing the boundaries of casting technology to deliver solutions that meet the evolving needs of modern manufacturing. One of our most innovative offerings is the Negative Pressure Casting System, a cutting-edge technology redefining precision, efficiency, and sustainability in casting processes.

What is the Negative Pressure Casting (NPC) System?
The NPC system leverages vacuum technology to create LFC within the mold cavity during the metal casting process. This advanced technique ensures optimal mold filling, reduces defects, and enhances the overall quality of castings. Its integration of modern vacuum systems with traditional casting methods brings significant improvements to industries that demand high precision and reliability.

Key Benefits of the NPC System
- Enhanced Product Quality
- Defect Reduction: Negative pressure minimizes turbulence and prevents the formation of porosity, shrinkage cavities, and other common casting defects.
- Superior Surface Finish: The system ensures smooth mold filling, resulting in cleaner surfaces and more detailed casting geometries.
- Dimensional Accuracy: With consistent negative pressure, molds maintain their integrity, ensuring precise dimensional control.
- Environmental Advantages
- Cleaner Process: The NPC system reduces emissions by eliminating the need for harmful additives like resins or binders.
- Recyclable Materials: Sand used in the process can be easily reclaimed and reused, reducing waste and supporting sustainable production practices.
- Energy Efficiency: Optimized processes consume less energy, making NPC systems a greener alternative for industrial casting.
- Cost Efficiency
- Material Savings: Eliminating binders and adhesives cuts raw material costs significantly.
- Longer Mold Life: The vacuum process minimizes wear and tear, extending the durability of casting molds.
- Improved Metal Utilization: Reduced riser sizes and machining allowances enhance material efficiency, saving costs in the long run.
Applications of the Negative Pressure Casting System
It is ideal for industries that demand high-precision and high-quality castings, including:
- Automotive: Producing lightweight yet durable components.
- Aerospace: Ensuring precision and strength for critical parts.
- Machinery: Manufacturing complex and robust machine parts.
- Energy: Creating high-performance components for turbines and power systems.

Why Choose Kewei Casting Equipment Company?
At Kewei Casting Equipment Company, we bring decades of expertise and innovation to the casting industry. Our Casting System is designed with a focus on:
- Advanced engineering for consistent results.
- Energy-efficient and eco-friendly technologies.
- Comprehensive support, from consultation to implementation.
Contact Us for Your Casting Solutions
Ready to enhance your casting capabilities with the Negative Pressure Casting (NPC) System? Trust Kewei Casting Machinery to provide you with state-of-the-art equipment that meets your industry’s needs. Contact us today to learn more about how we can help you stay ahead in the competitive world of casting technology.