Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends basic duty; it is fueled by an impassioned fervor for the exquisite craft and exact science of manufacturing, ensuring unparalleled excellence in every endeavor. Our specialized expertise acts as a beacon of precision, illuminating the landscape of elite component fabrication with unmatched brilliance and accuracy. We are at the forefront of innovation, pioneering the development and production of state-of-the-art intelligent automation equipment. Our revolutionary solutions serve a wide array of industries, fulfilling numerous applications, including:
- Medical and Biotech: Providing meticulously engineered high-precision components and trailblazing solutions for advanced medical devices, enhancing healthcare technology.
- Semiconductors: Empowering chip production and its associated devices with essential core components, crucial for advancing semiconductor technologies.
- New Energy: Supporting the dynamic and eco-conscious progression of groundbreaking energy equipment, fostering sustainable innovations.
- Automotive: Delivering vital components that drive innovation within the automotive industry, propelling the development of smart and electric vehicles into the future.
Main Products
- Specialized non-standard customized components, comprehensively serving the medical, automation, semiconductor, and automotive industries with precision and ingenuity.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations boast an impressive collection of over 300 branded machines, guaranteeing a comprehensive range of equipment categories. This extensive array empowers us to expertly fulfill the diverse machining needs of various industries with unmatched precision and unparalleled efficiency.
- With a legacy spanning 20 years, we offer a treasure trove of production experience, augmented by substantial technical and process advantages. This ensures the delivery of superior quality and cutting-edge innovation.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Precision-Driven Incoming Material Examination
We subject every piece of raw material entering our facilities to a comprehensive and rigorous evaluation. This meticulous process includes a detailed chemical composition analysis and an extensive examination of all physical properties. Our unwavering commitment to excellence mandates that every supplier delivers a Certificate of Origin along with a stamped Declaration of Conformity. By doing so, we ensure that only the highest quality materials are used in our high-precision medical machining services. Our stringent authentication process guarantees that all materials possess unparalleled integrity and purity, adhering to our demanding standards without compromise.
Stringent and Unyielding In-Process Quality Assurance
Throughout each phase of the sophisticated machining process, every component is subjected to meticulous scrutiny to verify that its dimensions and tolerances precisely conform to our rigorous specifications. This diligent and ongoing inspection protocol proactively identifies and intercepts defects, effectively preventing non-conforming parts from progressing to subsequent production stages. This vigilant and comprehensive approach significantly reduces the risk of producing substandard goods, ensuring impeccable quality and excellence at every stage of the manufacturing journey.
Dynamic and Anticipatory First Article Inspection (FAI)
Our First Article Inspection (FAI) is a foundational strategy that detects and resolves potential production challenges at an early stage, thwarting any issues from amplifying into full-scale production concerns. This exhaustive and precise FAI process is crucial for minimizing quality risks and guarantees that our products consistently achieve the zenith of standards. It reflects our steadfast dedication to excellence and innovation throughout the entire production process.
Meticulous and All-Encompassing Final Inspection
Before any product exits our facility, it is subjected to a meticulous final inspection process that rigorously evaluates its dimensions, visual aesthetics, and performance, as well as any specific customer requirements. This comprehensive inspection is a testament to our unwavering commitment to quality, ensuring that every part dispatched meets our exacting standards, thus delivering only the finest quality products to our valued clientele.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has dedicated itself to the art and science of high-precision basic component machining. With an unwavering commitment to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain seamlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our reputation for excellence and 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)