Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our relentless pursuit of perfection is fueled by an unwavering commitment to excellence in the artful science of precision manufacturing. Our passion for superior craftsmanship drives us to excel in the creation of the finest mechanical and electrical components. Our unmatched expertise lights the way to precision, guiding us through the prestigious realm of elite component manufacturing with an unparalleled mastery that sets us apart in the industry. As pioneers in innovation, we set the standard in crafting and producing groundbreaking intelligent automation equipment. Our cutting-edge solutions are seamlessly integrated across a diverse array of industries, meeting a wide range of applications and tailored to fulfill the distinct needs in numerous sectors, such as:
- Medical and Biotech: Providing meticulously engineered, ultra-high-precision components and groundbreaking solutions tailored for the next generation of medical devices, ensuring a future filled with innovation.
- Semiconductors: Elevating chip production and related equipment with indispensable components that are essential to the progression of the semiconductor industry.
- New Energy: Playing a pivotal role in the transformative and sustainable evolution of advanced energy equipment, driving the future of sustainable energy solutions.
- Automotive: Delivering vital components that ignite innovation within the automotive industry, propelling forward the advancement of smart and electric vehicle technology.
Main Products
- Masterfully crafted, non-standard customized components that provide critical solutions to key sectors such as medical, automation, semiconductor, and automotive industries, demonstrating unmatched excellence and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations proudly showcase a remarkable fleet of over 300 of the industry's most sophisticated machinery units. This extensive and diverse collection of equipment elevates our capabilities, keeping us at the pinnacle of innovation and adaptability. With such cutting-edge solutions at our disposal, we are constantly transforming, evolving, and ready to meet any challenge. These top-tier branded machinery units form the cornerstone of our precision-driven manufacturing operations, enabling us to expertly handle the intricate and demanding machining requirements across a wide array of industries. We achieve this with exceptional precision and remarkable efficiency. Our comprehensive capabilities not only ensure adherence to the most stringent quality standards but also offer bespoke customization. Each creation is meticulously tailored to meet the unique needs of our esteemed clientele.
- With a distinguished 20-year legacy, we leverage a wealth of manufacturing experience seamlessly integrated with deep technical expertise and process strengths. This combination guarantees superior quality and pioneering innovation. Our enduring expertise allows us to consistently deliver extraordinary products that not only meet but exceed expectations, setting new industry benchmarks.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Stringent Incoming Material Examination: Surpassing Industry Benchmarks
Every piece of raw material entering our fortified warehouse is subjected to an exhaustive evaluation process, setting an unparalleled benchmark in quality assurance. This meticulous scrutiny involves a comprehensive analysis of chemical composition and a thorough examination of physical properties. Our commitment to excellence requires each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring only premium materials are utilized in our high-precision medical machining services. Such rigorous authentication guarantees the integrity and purity of materials, consistently adhering to our elevated standards of excellence.
Rigorous In-Process Quality Control: Relentlessly Pursuing Perfection
Throughout the intricate machining process, each component is meticulously inspected to ensure its dimensions and tolerances align with our rigorous specifications. This continuous inspection protocol proactively intercepts potential defects, preventing non-conforming parts from progressing. Through this diligent approach, we significantly mitigate the risk of producing substandard goods, ensuring superior quality is consistently upheld at every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Blueprint for Excellence
Our First Article Inspection (FAI) forms the foundation of our strategy, adeptly identifying and resolving potential production challenges from the outset. This proactive methodology ensures that issues are prevented from escalating into mass production. This comprehensive FAI process is vital for minimizing quality risks, ensuring our products consistently meet the highest standards and reflecting our unwavering dedication to excellence throughout the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product leaves our facility, it undergoes a meticulous final inspection process. This rigorous evaluation encompasses dimensions, visual appearance, and performance, alongside any customer-specific requirements. This extensive inspection serves as a testament to our relentless pursuit of quality, ensuring every part dispatched meets our exacting standards, delivering only the highest quality 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. stands as a beacon of precision and innovation in the world of high-precision component machining. Our journey, fueled by passion and a dedication to the art and science of engineering, has spanned over two decades. We have passionately carved our niche as pioneers in precision engineering, relentlessly pursuing technical research and setting industry benchmarks for excellence. We have accumulated an unparalleled depth of technical expertise, distinguishing ourselves as market leaders with a renowned reputation for excellence. Our supreme mastery in precision medical machining services consistently meets the most stringent tolerances and impeccable surface finishes. This solidifies our standing as the foremost choice in the medical sector, where our precision and reliability earn trust and admiration.
With four strategically located production bases, in the dynamic hubs of Shenzhen and Guiyang, and driven by an inspiring workforce of over 400 highly skilled employees, Donghui has meticulously developed a strong, vertically integrated industry chain. This chain seamlessly connects research and development, production, and delivery, guaranteeing that we meet and exceed the varied needs of our clients with remarkable efficiency and unmatched quality. Our cutting-edge facilities are fully equipped to handle the most complex and challenging machining tasks, reinforcing our prestigious 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)