Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment extends beyond mere obligation; it is fueled by an ardent passion for the artistry and exactitude of precision manufacturing. Our dedication is unwavering, making us a beacon of excellence in this specialized field. Our unrivaled expertise is like a lighthouse guiding the world of elite component fabrication, shedding light on the path toward scrupulous accuracy and detail. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our avant-garde solutions serve an extensive array of industries, adeptly addressing a diverse range of applications, including:
- Medical and Biotech: Delivering expertly crafted high-precision components and inventive solutions for the most advanced medical devices, all while maintaining the highest echelons of quality standards.
- Semiconductors: Empowering the production of chips and associated equipment by supplying essential core components that are vital to the industry's thriving success.
- New Energy: Actively participating in the dynamic and sustainable progress of innovative energy equipment, promoting eco-conscious technological advancements.
- Automotive: Furnishing crucial components that drive innovation within the automotive sector, supporting the growth of intelligent and electric vehicles.
Main Products
- We excel in the manufacture of non-standard customized components, profoundly serving the medical, automation, semiconductor, and automotive industries, thereby ensuring unparalleled precision and top-tier quality.
Why choose us
Core Advantages
- A Fleet of Excellence: Discover our unparalleled assembly of advanced equipment, a testament to our commitment to engineering mastery. Our operations proudly showcase an extraordinary assortment of over 300 state-of-the-art machines, each a paragon of technology and innovation. renowned for their precision and efficiency, machines that stand as titans in the machining industry,enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, ensuring that no challenge is beyond our reach.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This ensures exceptional quality and forward-thinking innovation, establishing us as pioneers in the realm of precision engineering, where tradition meets innovation.
State-of-the-Art Production Equipment: Experience cutting-edge technology that defines our production capabilities, setting new standards in precision and sophistication.
High-Precision Inspection Equipment: Trust in our meticulous quality assurance processes, powered by high-precision inspection technology, to deliver excellence consistently.
Quality Ensurance
Unrivaled Incoming Material Examination
Every raw material that enters our facility is subjected to a rigorous and comprehensive examination process. Our thorough analyses diligently assess the chemical composition alongside an in-depth inspection of physical properties. We maintain an unwavering commitment to quality by mandating every supplier to furnish a Certificate of Origin and a stamped Declaration of Conformity. This meticulous selection process ensures that only the highest caliber materials are integrated into our state-of-the-art medical machining services. Our rigorous validation framework assures that these materials consistently meet the pinnacle of standards in integrity and purity, perfectly aligned with our steadfast dedication to quality.
In-Depth In-Process Quality Assurance
Within our complex and precise machining operations, each component undergoes scrupulous examination to ensure its dimensions and tolerances not only meet but surpass our rigorous specifications. Our diligent, ongoing inspection strategy is crafted to detect and address potential defects promptly, averting the advancement of non-conforming parts into subsequent production stages. This vigilant methodology is crucial for mitigating the risk of substandard products, guaranteeing exceptional quality at every production phase, and sustaining excellence throughout the entire manufacturing process.
Comprehensive First Article Inspection (FAI)
Our First Article Inspection (FAI) process acts as a core strategy essential for identifying and proactively addressing potential production challenges from the outset. This strategic approach inhibits issues from escalating into full-scale production. The extensive and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently achieve the highest standards. This unwavering commitment to excellence infuses every phase of the production cycle, assuring that we consistently meet and surpass the most stringent quality benchmarks.
Thorough Comprehensive Final Inspection
Before any product departs from our facility, it is subjected to an exacting and exhaustive final inspection. This detailed process rigorously assesses dimensions, visual appearance, performance, and any requirements specific to the customer. Our comprehensive inspection protocol is a testament to our relentless pursuit of quality, ensuring that every component dispatched from our facility meets our stringent standards. We remain resolute in delivering only the finest quality products to our esteemed customers, reinforcing our reputation for unparalleled excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, tracing its origins back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has firmly established itself as a paragon of excellence in the field of high-precision basic component machining. For over two decades, our relentless pursuit of innovation and mastery in technical research has positioned us as trailblazers in precision engineering. We have garnered an extraordinary wealth of technical expertise, earning a prestigious market reputation that distinctly sets us apart as an industry leader. Our unparalleled capabilities in precision medical machining services consistently achieve exceedingly tight tolerances and flawless surface finishes, making us the go-to choice in the medical sector.
With four strategically positioned production bases nestled in the dynamic hubs of Shenzhen and Guiyang, and powered by a dedicated team of over 400 highly skilled employees, Donghui has meticulously crafted a comprehensive and vertically integrated industry chain. This seamlessly combines research and development, production, and delivery, ensuring we consistently meet and exceed our customers' diverse needs with unmatched efficiency and superior quality. Our cutting-edge facilities are designed to tackle the most complex and demanding machining tasks, solidifying our reputation for excellence and pioneering advancements.
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)