Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by an unwavering dedication to perfection. Our passion fuels our pursuit of excellence in the art and science of sophisticated manufacturing. Our extraordinary expertise brightly illuminates the way in the precise world of elite component manufacturing, demonstrating our unmatched skill and craftsmanship. As trailblazers of innovation, we establish the gold standard in crafting and creating groundbreaking intelligent automation equipment. Our cutting-edge technologies seamlessly integrate across a broad array of industries, addressing a multitude of applications including:
- Medical and Biotech: Delivering precisely engineered, ultra-high-precision components and pioneering solutions tailored for the next generation of medical devices.
- Semiconductors: Elevating chip production and related equipment with crucial components that are both essential and irreplaceable.
- New Energy: Being at the forefront of the innovative and sustainable evolution of advanced energy equipment.
- Automotive: Supplying vital components that drive innovation within the automotive sector, supporting the progression of smart and electric vehicles.
Main Products
- Masterfully crafted, bespoke non-standard components that serve critical industries such as medical, automation, semiconductor, and automotive sectors with unparalleled 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. Our Elite Machinery Lineup: The Pinnacle of Precision and Innovation These top-tier branded machinery units are the cornerstone of our manufacturing excellence, forming the backbone that drives our precision-centric production processes, allowing us to expertly meet even the most intricate and demanding machining requirements with unmatched precision and efficiency across a wide array of industries. Our comprehensive capabilities ensure strict adherence to the highest quality standards, offering bespoke customization meticulously crafted to the unique specifications and aspirations of our esteemed clientele.
- Boasting a prestigious 20-year legacy, we harness an immense wealth of manufacturing experience seamlessly integrated with substantial technical expertise and robust process strengths. This combination guarantees superior quality and ground-breaking innovation, enabling us to consistently deliver extraordinary products that not only meet but routinely surpass expectations, setting new benchmarks of excellence throughout 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: Surpassing Industry Standards
In our pursuit of perfection, every raw material entering our secure warehouse is meticulously evaluated, establishing a gold standard in quality assurance. This exhaustive process involves a precise analysis of chemical composition and a comprehensive examination of physical properties. We insist on excellence, requiring each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring that only the finest materials form the backbone of our high-precision medical machining services. Such stringent authentication fortifies the integrity and purity of materials, unwaveringly upholding our consistently elevated standards.
Rigorous In-Process Quality Control: Continuously Striving for Perfection
Throughout our intricate machining journey, each component is subject to meticulous scrutiny to ensure its dimensions and tolerances meet our exacting standards. This continuous inspection protocol proactively addresses potential defects, effectively preventing non-conforming parts from progressing. Through this vigilant strategy, we substantially mitigate the risk of producing substandard goods, ensuring superior quality is upheld at every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) serves as the linchpin of our strategy, adeptly identifying and resolving potential production challenges from the very start. This proactive methodology ensures obstacles are averted before escalating into full-scale production. This all-encompassing FAI process is crucial for minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, reflecting our unwavering dedication to excellence throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product leaves our facility, it undergoes an exhaustive final inspection process. This rigorous evaluation encompasses dimensions, visual appearance, and performance, along with any customer-specific requirements. This meticulous inspection is a testament to our unyielding commitment to quality, ensuring every part dispatched meets our stringent 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)