Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by an indomitable passion for excellence in both the sophisticated science and the refined art of manufacturing. Our commitment is unwavering-to not only meet but to exceed the pinnacle of quality and innovation standards. Our unparalleled expertise serves as a beacon of precision, navigating us through the prestigious domain of elite component manufacturing with extraordinary skill and unwavering dedication. As pioneers of innovation, we set the gold standard for designing and crafting groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a vast spectrum of industries, catering to a multitude of applications, including:
- Medical and Biotech: Delivering meticulously engineered, ultra-high-precision components alongside visionary solutions crafted for the future of medical technology.
- Semiconductors: Enhancing chip production and related equipment with indispensable components that stand as both crucial and irreplaceable.
- New Energy: Pioneering the field of sustainable innovation with cutting-edge energy equipment development.
- Automotive: Providing essential components that fuel innovation within the automotive industry, promoting the evolution of smart and electric vehicles.
Main Products
- Expertly crafted, non-standard customized components that are indispensable to critical sectors such as medical, automation, semiconductor, and automotive industries, delivering unmatched excellence and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations proudly showcase an unmatched fleet of over 300 of the industry's most advanced and sophisticated machinery units. This extensive and diverse catalog of equipment is a testament to our commitment to staying at the cutting edge of innovation and adaptability. By maintaining such a comprehensive array of machinery, we are equipped to offer pioneering solutions that meet evolving industry demands. These superior quality branded machinery units serve as the cornerstone of our precision-focused manufacturing processes, enabling us to expertly navigate and fulfill the intricate and challenging machining requirements across a vast spectrum of industries. Our dedication to exceptional precision and efficiency ensures that we consistently adhere to the highest quality standards. We offer bespoke customization services, meticulously crafted to meet the distinct needs of our valued clients.
- With an illustrious 20-year legacy, we leverage a rich reservoir of manufacturing experience, seamlessly intertwined with profound technical expertise and process strengths. This formidable combination guarantees outstanding quality and groundbreaking innovation. Our sustained expertise empowers us to deliver extraordinary products that not only meet but exceed expectations, setting new industry standards.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous Incoming Material Inspection: Exceeding Industry Standards with Precision
Every raw material entering our secure warehouse undergoes a rigorous and uncompromising evaluation process, setting a new benchmark in quality assurance. Our detailed and methodical approach includes a comprehensive analysis of chemical compositions and an in-depth examination of all physical properties. We demand that each supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity, guaranteeing that only the finest materials find their way into our high-precision medical machining services. Such stringent authentication is vital to preserving the integrity and purity of our materials, consistently maintaining our elevated standards of quality and excellence.
In-Process Quality Control: Continuously Aiming for Flawless Perfection
During the complex and precise machining process, each component is meticulously inspected to ensure its dimensions and tolerances meet our exacting standards. This ongoing inspection protocol allows us to proactively identify and intercept potential defects, preventing any non-conforming parts from progressing further. Our vigilant approach significantly minimizes the risk of producing substandard products, ensuring superior quality is maintained throughout every stage of production.
Comprehensive First Article Inspection (FAI): Laying the Foundation for Unmatched Excellence
Our First Article Inspection (FAI) is a cornerstone of our strategic quality assurance, expertly identifying and resolving potential production challenges at the outset. This proactive method guarantees that issues are addressed swiftly, well before they can impact mass production. By minimizing quality risks through this thorough process, we consistently achieve the highest product standards, reflecting our unwavering dedication to excellence throughout the entire production cycle.
Final Inspection: The Ultimate Sentinel of Quality Assurance
Before any product exits our facility, it undergoes an exhaustive final inspection. This rigorous evaluation covers dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process underscores our relentless commitment to quality, ensuring that every dispatched part meets our stringent standards, ultimately delivering only the highest caliber products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Established in the vibrant year of 2009, with roots tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. shines as a luminary of precision and innovation in the realm of high-precision component machining. Embarking on a journey fueled by a relentless passion and a steadfast dedication to the art and science of engineering, we've traversed over two glorious decades. As pioneering trailblazers in precision engineering, we relentlessly pursue cutting-edge technical research, setting the industry's gold standard for unparalleled excellence and innovation. We have amassed an extraordinary depth of technical expertise, distinguishing ourselves as undisputed market leaders with a renowned reputation for unwavering excellence. Our exceptional mastery in precision medical machining services consistently surpasses the most exacting tolerances, delivering impeccable surface finishes. This solidifies our standing as the foremost choice in the medical sector, where our precision and reliability earn us widespread trust and admiration.
With four strategically located production bases, in the dynamic and innovative hubs of Shenzhen and Guiyang, and driven by an inspiring workforce of over 400 highly skilled and dedicated employees, Donghui has meticulously developed a robust and vertically integrated industry chain. This seamless chain intricately connects research and development, state-of-the-art production, and efficient delivery, ensuring that we meet and exceed the diverse needs of our clients with remarkable efficiency and unmatched quality. Our cutting-edge facilities are fully equipped to tackle the most complex and challenging machining tasks, reinforcing our prestigious reputation for pioneering excellence and forward-thinking innovation.
Workshop Display
Certifications

FAQ
1. What is CNC machining?
CNC (Computer Numerical Control) machining is a manufacturing process where pre-programmed computer software controls the movement of machinery and tools. It's used for a wide range of materials, including metal, plastic, and wood.
2. What materials can be used in CNC machining?
CNC machines can handle a variety of materials such as:
- Metals (aluminum, steel, titanium, brass, copper)
- Plastics (ABS, POM, nylon, acrylic)
- Wood and composite materials
- Ceramics and more.
3. What is the difference between CNC milling and CNC turning?
- CNC Milling: Involves rotating the cutting tool and moving it along multiple axes to remove material from a workpiece.
- CNC Turning: Involves rotating the workpiece and using a stationary cutting tool to remove material, mainly for cylindrical parts.
4. How do I choose the right CNC machining service?
Factors to consider include:
- Material requirements
- Tolerance and precision
- Production volume
- Lead time
- Cost-effectiveness
5. What is the typical lead time for CNC machining?
Lead times depend on the complexity of the part, the material, the required finish, and the production volume. Typically, CNC machining can take anywhere from a few days to a couple of weeks for a prototype or small batch, but larger orders may take longer. Normally 7 days for prototyping and 20 days for mass production shipment.
6. What is the maximum size of a part that can be CNC machined?
The size limitations depend on the specific CNC machine being used. Large-scale machines can accommodate parts up to several meters in length, while smaller machines are typically limited to parts around 1000mm in length or less.
7. What is the accuracy and tolerance of CNC machining?
CNC machining offers high precision, with tolerances typically ranging from ±0.01mm to ±0.1mm. However, the exact tolerance will depend on the machine and the material used.
8. How much does CNC machining cost?
CNC machining costs vary based on factors such as:
- Material choice
- Part complexity
- Machine time
- Labor costs
- Quantity (prototypes vs. mass production)
9. What types of finishes can be applied to CNC machined parts?
Common finishes include:
- Anodizing
- Powder coating
- Polishing
- Painting
- Bead blasting
- Electroplating
10. Can CNC machining be used for prototyping?
Yes, CNC machining is widely used for prototyping because it allows for the quick production of precise parts. It's ideal for low-to-medium volume production runs and allows engineers to test designs and make adjustments before mass production.
11. What are some common applications of CNC machining?
CNC machining is used across various industries, including:
- Aerospace and aviation
- Automotive
- Medical devices
- Consumer electronics
- Industrial machinery
12. What are the common challenges in CNC machining?
- Tool wear: As tools wear out, they affect the quality of the parts being machined.
- Material properties: Different materials behave differently during machining, requiring adjustments to the process.
- Programming complexity: Complex designs may need advanced programming skills and specialized machines.
13. How can I ensure the quality of CNC machined parts?
Quality can be ensured through:
- First Article Inspections (FAI)
- In-process inspections
- Final inspections
- Use of quality control tools like CMM (Coordinate Measuring Machine)