Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are more than a company; we are a testament to the art of engineering excellence. Our dedication to achieving unparalleled precision transforms our craft into an artistry that excels in manufacturing innovation. We are driven by an unyielding quest for perfection. Our exceptional skill serves as a luminous beacon of unrivaled precision, illuminating the way in the esteemed realm of high-end component manufacturing. Positioned at the leading edge of innovation, we embody the pinnacle of design and engineering in revolutionary intelligent automation equipment. Our state-of-the-art solutions are seamlessly integrated across a vast spectrum of industries, skillfully addressing a multitude of precise application needs, including:
- Medical and Biotech: Meticulously crafting highly precise, exceptionally accurate components and offering pioneering solutions uniquely tailored to shape the future of medical technology.
- Semiconductors: Advancing chip production and related essential equipment by providing indispensable core components that elevate the entire industry.
- New Energy: Playing a crucial role in the sustainable advancement and evolution of cutting-edge innovative energy equipment.
- Automotive: Delivering critical components that drive transformative innovation within the automotive sector, supporting the growth and evolution of intelligent and electric vehicles.
Main Products
- Crafted with expertise and precision, our non-standard customized components serve essential roles in pivotal sectors such as medical, automation, semiconductor, and automotive industries, distinguishing themselves with exceptional quality and performance.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified with an extraordinary fleet of over 300 of the industry's most advanced machinery units. This elite collection ensures we uphold a vast and dynamic array of equipment categories, enabling us to remain at the forefront of innovation and adaptability across various industrial landscapes. With these cutting-edge machines, we deliver unparalleled precision and versatility in crafting customized solutions. These premium branded machinery units form the backbone of our precision-focused manufacturing. Empowering us to meet the multifaceted and challenging machining demands of diverse industries with outstanding precision and efficiency, our extensive capabilities guarantee adherence to the utmost quality standards. We offer bespoke customization, meticulously crafted to fulfill the unique requirements of our distinguished clientele, consistently elevating their expectations with every project. Every component we create is a testament to our commitment to excellence and innovation.
- With an illustrious 20-year legacy, we possess a rich reservoir of manufacturing experience, seamlessly interwoven with profound technical expertise and process strengths. This guarantees the delivery of superior quality and groundbreaking innovation. Our enduring expertise equips us to consistently deliver extraordinary products that not only meet but exceed expectations, setting new benchmarks in industry standards. Each project we undertake is infused with our passion for precision and innovation, ensuring an unmatched experience for our clients.
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: Surpassing Industry Benchmarks with Unrivaled Precision
Within the immaculate confines of our state-of-the-art warehouse, every raw material embarks on an exhaustive and rigorous evaluation journey, setting new paradigms for quality assurance. Our meticulous procedures encompass a detailed analysis of chemical compositions coupled with an extensive review of physical attributes. We adhere to the pinnacle of standards, collaborating with suppliers to obtain a Certificate of Origin and a stamped Declaration of Conformity. This meticulous selection process ensures that only world-class materials grace our precision-based medical machining services. Through this stringent validation, we guarantee the purity and integrity of materials, consistently achieving and even surpassing our elevated benchmarks for precision and unparalleled quality.
Rigorous In-Process Quality Control: The Relentless Pursuit of Perfection
Throughout our intricate machining journey, every component is subject to scrupulous inspection to ensure dimensions and tolerances perfectly align with our stringent specifications. Our vigilant inspection protocol intercepts any potential defects, preventing non-conforming parts from advancing. This thorough approach significantly minimizes the risk of substandard products, ensuring that extraordinary quality is diligently upheld at each critical juncture of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Unparalleled Excellence
Our First Article Inspection (FAI) procedure is the bedrock of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach ensures issues are addressed before they escalate to mass production, safeguarding a seamless flow of impeccable production. Our comprehensive FAI process is crucial for minimizing quality risks, guaranteeing our offerings consistently meet the highest standards, and underscoring our unwavering commitment to excellence throughout the entire production lifecycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Arbiter of Quality
Before any product leaves our facility, it undergoes a comprehensive and painstaking final inspection. This meticulous evaluation includes dimensions, visual appeal, performance, and tailored customer requirements. Our exhaustive inspection process stands as a testament to our steadfast dedication to quality, ensuring each dispatched piece meets our stringent standards, thereby delivering only the highest caliber products to our esteemed and valued clientele.
Packaging & Shipping
Company Profile
Since its esteemed inception in 2009, evolving from its visionary roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has ardently dedicated itself to the art and science of high-precision component machining. Over two transformative decades, with an unwavering drive for innovation and unparalleled excellence, we have ascended as trailblazers in the realm of precision engineering. Our relentless pursuit of technical research and pioneering solutions has positioned us as industry paragons, setting new standards of unrivaled excellence. Our company boasts an extraordinary wealth of technical expertise, reinforcing our stature as market leaders with a reputation for superior excellence. Our mastery in precision medical machining services consistently achieves the most exacting tolerances and flawless surface finishes, marking us as the preferred choice in the medical sector. Healthcare professionals and industry experts hold our precision and reliability in high regard, recognizing their indispensable value.
With four strategically located production bases, nestled within the dynamic centers of Shenzhen and Guiyang, and fueled by a dedicated workforce of over 400 highly skilled professionals, Donghui has meticulously constructed a robust, vertically integrated industry chain. This chain seamlessly merges research and development, production, and delivery, ensuring we consistently meet and exceed the diverse needs of our clientele with remarkable efficiency and unmatched quality. Our cutting-edge facilities are expertly equipped to execute the most intricate and demanding machining tasks, cementing our esteemed reputation for innovation and excellence.
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)