Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are on an extraordinary quest to redefine excellence in the art and science of precision manufacturing. Our steadfast dedication to quality and relentless drive for innovation ensure that we not only meet but exceed the highest standards, setting new benchmarks in the industry. Guided by our profound expertise, we illuminate the path of precision, seamlessly navigating the elite realm of component manufacturing with unmatched skill and unwavering commitment. Our dedication positions us as leaders in crafting components of superior precision and quality. As pioneers of innovation, we set the standard in the design and production of revolutionary intelligent automation equipment. Our avant-garde solutions seamlessly integrate across a multitude of industries, meeting diverse needs in an array of applications, including:
- Medical and Biotech: Delivering precisely engineered, ultra-high-precision components and visionary solutions that are shaping the future of medical devices, ensuring unparalleled performance and reliability.
- Semiconductors: Enhancing chip production with indispensable components that are critical and irreplaceable, driving advancements in semiconductor technology.
- New Energy: Pioneering the forefront of innovative and sustainable development, leading the charge in cutting-edge energy equipment.
- Automotive: Providing essential components that propel innovation within the automotive sector, championing the evolution of smart and electric vehicles with cutting-edge solutions.
Main Products
- Our expertly crafted, bespoke components are the cornerstone of vital sectors like medical, automation, semiconductor, and automotive industries, delivering unparalleled excellence and precision that meet the highest demands of these cutting-edge fields.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations boast an unparalleled fleet of over 300 of the industry's most sophisticated machinery units. This remarkable collection ensures we possess a vast and varied catalog of equipment categories, empowering us to lead the charge in innovation and adaptability. Offering the most cutting-edge solutions, our extensive arsenal positions us at the pinnacle of industrial ingenuity. These top-tier branded machinery units form the backbone of our precision-centric manufacturing, allowing us to expertly meet the intricate and demanding machining requirements across a broad range of industries. We achieve this with exceptional precision and unmatched efficiency. Our comprehensive capabilities ensure strict adherence to the highest quality standards while offering bespoke customization, meticulously tailored to meet the unique needs of our esteemed clients.
- With a prestigious 20-year legacy, we harness a wealth of manufacturing experience seamlessly integrated with substantial technical expertise and process strengths. This guarantees superior quality and ground-breaking innovation. Our enduring expertise empowers us to consistently deliver extraordinary products that not only meet but exceed expectations, setting new benchmarks in the industry.
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 Rigorous Incoming Material Inspection: Exceeding Industry Benchmarks
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we put every piece of raw material through an unyielding evaluation process as soon as it enters our secure warehouse, setting an unrivaled standard in quality assurance. Our painstakingly detailed scrutiny includes a comprehensive analysis of chemical compositions and an exhaustive examination of all physical properties. Our resolute commitment to excellence mandates that each supplier must accompany their materials with a Certificate of Origin and a stamped Declaration of Conformity, ensuring only the most exceptional materials are used in our high-precision medical machining services. This intense authentication protocol guarantees the integrity and purity of our materials, steadfastly maintaining our high standards of quality.
Rigorous In-Process Quality Control: Perpetually Aiming for Perfection
During the complex machining process, every component undergoes meticulous scrutiny to ensure its dimensions and tolerances match seamlessly with our stringent specifications. This ongoing inspection strategy proactively intercepts potential defects, effectively preventing any non-conforming parts from proceeding further in the process. By adopting this vigilant approach, we significantly decrease the likelihood of producing substandard goods, safeguarding superior quality at every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): The Preventive Framework for Excellence
Our First Article Inspection (FAI) forms the foundation of our strategic methodology, expertly uncovering and addressing potential production challenges from the very beginning. This proactive approach ensures that any issues are swiftly resolved before escalating into mass production. This extensive FAI process is vital in minimizing quality risks, unwaveringly enabling our products to achieve the highest standards and embodying our dedication to excellence throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Prior to any product leaving our facility, it undergoes an exhaustive final inspection process. This rigorous evaluation examines dimensions, visual appearance, performance, and any customer-specific requirements. This extensive inspection signifies our relentless pursuit of quality, ensuring every part dispatched meets our stringent standards and delivers only the finest 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. stands as a beacon of precision and innovation in the world of high-precision component machining. Our journey, fueled by a relentless passion and a steadfast dedication to the art and science of engineering, has spanned over two glorious decades. We have passionately carved our niche as pioneering trailblazers in precision engineering, relentlessly pursuing cutting-edge technical research and setting the industry's gold standard for unparalleled excellence. We have amassed an extraordinary depth of technical expertise, distinguishing ourselves as the undisputed leaders in the market with a prestigious reputation for unyielding excellence. Our supreme mastery in precision medical machining services consistently surpasses even the most stringent tolerances, delivering impeccable surface finishes that set the benchmark in the industry. This solidifies our preeminent position as the foremost choice in the medical sector, where our precision and unwavering 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 handle 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)