Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by an unwavering commitment to perfection, fueled by a passion for excelling in the intricate science and refined craftsmanship of precise manufacturing. Our dedication ensures that we consistently surpass the highest standards of quality and innovation, setting new benchmarks in the industry. Our exceptional expertise lights the way in precision, expertly guiding us through the esteemed realm of elite component manufacturing. We demonstrate unparalleled skill and dedication, ensuring every product exemplifies our commitment to excellence. As pioneers of innovation, we set the industry standard in designing and producing cutting-edge intelligent automation equipment. Our solutions seamlessly integrate across diverse industries, delivering versatility and addressing a wide range of applications, including:
- Medical and Biotech: Providing meticulously engineered, ultra-high-precision components and visionary solutions that empower the future of medical devices, ensuring they meet the demands of tomorrow.
- Semiconductors: Enhancing chip production and the associated equipment with crucial components that are indispensable and irreplaceable, ensuring superior performance and reliability.
- New Energy: Leading with innovation in the sustainable development of pioneering energy equipment, paving the way for a greener future.
- Automotive: Providing indispensable components that fuel innovation within the automotive industry, driving forward the advancement of smart and electric vehicles.
Main Products
- Expertly crafted, customized non-standard components that serve crucial sectors such as medical, automation, semiconductor, and automotive industries with unmatched excellence and precision, embodying our commitment to quality and innovation.
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, ensuring we possess an extensive and diverse catalog of equipment categories. This expansive collection empowers us to remain at the forefront of innovation and adaptability, offering cutting-edge solutions. 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 with exceptional precision and efficiency. Our comprehensive capabilities ensure adherence to the highest quality standards and offer bespoke customization, meticulously tailored to 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, guaranteeing superior quality and ground-breaking innovation. This enduring expertise enables us to consistently deliver extraordinary products that surpass expectations and set 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 Exacting Incoming Material Inspection: Surpassing Industry Benchmarks
Every piece of raw material that graces our secure warehouse undergoes a rigorous and uncompromising evaluation process, setting an unmatched precedent in quality assurance. This exhaustive and detailed approach includes a thorough chemical composition analysis and an in-depth examination of all physical properties. Our steadfast commitment to excellence mandates that each supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity, ensuring that only the finest materials are incorporated into our high-precision medical machining services. Such rigorous authentication guarantees the integrity and purity of our materials, consistently maintaining our high standards of quality.
Rigorous In-Process Quality Control: Pursuing Perfection Relentlessly
Throughout the sophisticated machining process, each component is meticulously scrutinized to ensure its dimensions and tolerances align flawlessly with our stringent specifications. This continuous inspection protocol proactively intercepts potential defects, effectively preventing any non-conforming parts from progressing further in the process. Through this vigilant approach, we significantly minimize the risk of producing substandard goods, ensuring that superior quality is preserved at every production stage.
Proactive and Comprehensive First Article Inspection (FAI): The Blueprint for Excellence
Our First Article Inspection (FAI) stands as the foundation of our strategic framework, expertly identifying and resolving potential production issues from the outset. This proactive method ensures that any challenges are swiftly addressed before escalating into full-scale production. This thorough FAI process plays a pivotal role in minimizing quality risks, consistently enabling our products to meet the highest standards and reflecting our unwavering dedication to excellence throughout the entire production cycle.
Comprehensive and Detailed Final Inspection: The Definitive Guardian of Quality
Before any product departs our facility, it is subjected to an exhaustive final inspection process. This rigorous evaluation covers dimensions, visual appearance, and performance, as well as any customer-specific requirements. This extensive inspection stands as a testament to our relentless commitment to quality, ensuring every part dispatched meets our stringent standards, 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. 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 accumulated an unparalleled depth of technical expertise, distinguishing ourselves as undisputed market leaders with a renowned reputation for unwavering excellence. Our supreme mastery in precision medical machining services consistently exceeds the most stringent 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 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)