Engineering-Driven Aluminum Casting Solutions
Who We Are
Dongguan Yihui Environmental Protection Technology Co., Ltd. is a specialized manufacturer focusing on Low Pressure Die Casting (LPDC) and Gravity Die Casting for high-performance aluminum alloy components.
Located in Dongguan, Guangdong Province, China, Yihui serves customers worldwide with engineering-oriented manufacturing solutions for industries where product reliability, dimensional consistency, and production stability are essential.
Rather than simply producing aluminum castings, we work closely with customers throughout product development—from design review and tooling development to mass production and quality verification—helping transform engineering concepts into reliable manufactured components.
Engineering Capability
Our engineering team has accumulated extensive experience in aluminum alloy casting technologies and is capable of independently developing casting tooling for complex structural components.
We continuously improve manufacturing processes to support:
- Thin-wall aluminum castings
- High air-tightness applications
- Complex structural geometries
- Precision machining requirements
- Stable mass production
Every project begins with an engineering evaluation to improve manufacturability before production starts.
Manufacturing Excellence
Yihui provides complete manufacturing capabilities covering the entire production process:
- Low Pressure Die Casting
- Gravity Die Casting
- Tooling Design & Manufacturing
- CNC Precision Machining
- Heat Treatment
- Surface Treatment
- Assembly
- Final Inspection
Our integrated production system enables us to deliver consistent product quality from prototype development to high-volume production.
Quality Commitment
Quality is built into every stage of manufacturing—not only inspected at the end.
Our quality management system focuses on:
- Incoming material verification
- Process monitoring
- Dimensional inspection
- Mechanical property verification
- Air leakage testing
- Final quality validation before shipment
Yihui has established continuous process improvement methods to reduce casting defects and enhance manufacturing consistency for demanding industrial applications.
Industries We Serve
Our aluminum alloy castings are widely used in:
- Automotive Components
- Electric Vehicles
- Industrial Equipment
- Oil & Gas Equipment
- Railway Systems
- Medical Equipment
- Agricultural Machinery
- Robotics
- Aerospace & Defense
Typical products include:
- Motor Housings
- Motor End Covers
- Compressor Components
- Pump Bodies
- Machine Frames
- Electric Bicycle Components
- Industrial Structural Parts
Manufacturing Facilities
Our manufacturing facility is equipped with modern production and inspection equipment to support stable and efficient production.
Factory Area: 10000㎡
Production Area: 6500㎡
Low Pressure Casting Machines: 4
Gravity Casting Machines: 3
CNC Machines: 22
Annual Production Capacity: 6000T
Employees: 46
Certifications
Yihui operates under internationally recognized management systems.
- ISO 9001 Quality Management System
- ISO 14001 Environmental Management System
- IATF 16949 Automotive Quality Management System
These certifications demonstrate our commitment to standardized manufacturing, continuous improvement, and customer satisfaction.
Why Choose Yihui
Customers choose Yihui because we provide more than manufacturing capacity.
We provide:
✓ Engineering-oriented project support
✓ Stable production processes
✓ Reliable quality management
✓ Flexible manufacturing solutions
✓ Responsive technical communication
✓ Long-term manufacturing partnership
Our goal is to become a trusted engineering partner throughout the entire product lifecycle.
Let’s Build Your Next Project
Whether you are developing a new aluminum casting or optimizing an existing component, our engineering team is ready to support your project.
Upload your drawings or technical requirements today, and let us help you identify the most suitable casting solution.
