Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., excellence is not just a goal but a way of life. We are driven by an unparalleled commitment to precision and innovation in the realm of manufacturing. Our journey is defined by a passion for the art and science of crafting industry-leading solutions that effortlessly exceed the highest quality standards. Our unparalleled expertise serves as a beacon, lighting the way to precision in elite component manufacturing. With unmatched skill and dedication, we navigate this esteemed domain, consistently delivering excellence. As pioneers in the world of innovation, we set the standard in the design and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a spectrum of industries, meeting varied demands and providing groundbreaking applications in fields such as:
- Medical and Biotech: Offering intricately designed, ultra-high-precision components and futuristic solutions that are shaping the next generation of medical devices.
- Semiconductors: Enhancing chip production and related equipment with vital components that are indispensable in the semiconductor industry.
- New Energy: Pioneering the development of innovative and sustainable energy equipment, leading the charge towards a greener future.
- Automotive: Delivering key components that fuel innovation in the automotive industry, supporting the evolution of smart and electric vehicles.
Main Products
- Meticulously crafted, non-standard customized components that excel in critical sectors like medical, automation, semiconductor, and automotive industries, offering unparalleled precision and excellence.
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, enabling us to expertly satisfy the intricate and demanding machining requirements across a broad spectrum of industries with exceptional precision and efficiency. Our comprehensive capabilities ensure adherence to the highest quality standards. We offer bespoke customization that is meticulously tailored to the unique needs of our esteemed clients, ensuring absolute precision.
- With a prestigious 20-year legacy, we harness a wealth of manufacturing experience seamlessly integrated with substantial technical expertise and process strengths. This synergy guarantees superior quality and groundbreaking innovation, enabling 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 Uncompromising Incoming Material Inspection: Exceeding Industry Benchmarks
Every piece of raw material entering our secure warehouse undergoes an unwavering, rigorous evaluation process, setting an unmatched standard in quality assurance. This meticulously detailed approach entails a thorough analysis of chemical compositions and an extensive examination of all physical properties. Our steadfast commitment to excellence requires each supplier to present a Certificate of Origin and a stamped Declaration of Conformity, ensuring that only the finest materials are employed in our high-precision medical machining services. Such stringent validation guarantees the integrity and purity of our materials, consistently maintaining our elevated quality standards.
In-Process Quality Control That Strives for Perfection
Throughout the complex machining process, each component is scrupulously evaluated to ensure its dimensions and tolerances align impeccably with our demanding specifications. This continuous inspection protocol anticipates and intercepts potential defects, effectively preventing any non-conforming parts from progressing further in the process. Through this vigilant approach, we significantly reduce the likelihood of producing inferior goods, ensuring that superior quality is preserved at every stage of production.
Proactive and All-Encompassing First Article Inspection (FAI): A Preventive Framework for Unmatched Excellence
Our First Article Inspection (FAI) is the cornerstone of our strategic approach, expertly anticipating and resolving potential production challenges from the outset. This proactive method ensures any issues are swiftly addressed before escalating into mass production. This comprehensive FAI process minimizes quality risks, ensuring our products consistently achieve the highest standards and reflecting our unwavering dedication to excellence throughout the entire production cycle.
Comprehensive and Detailed Final Inspection: The Ultimate Custodian of Quality
Before any product departs our facility, it undergoes an exhaustive final inspection process. This rigorous evaluation covers dimensions, visual appearance, performance, and any customer-specific requirements. This extensive inspection exemplifies our relentless commitment to quality, ensuring every part sent 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)