Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment extends far beyond mere duty; it is fueled by an ardent passion for the artful craft and intricate science of precision manufacturing. Our unparalleled expertise lights the way in high-end component fabrication, offering a beacon of meticulous precision that leads to perfection in every detail. As pioneers in the field, we are at the forefront of developing and producing innovative intelligent automation equipment. Our state-of-the-art solutions span multiple industries, meeting diverse applications such as:
- Medical and Biotech: We deliver meticulously engineered, high-precision components and pioneering solutions for cutting-edge medical devices, maintaining the highest quality standards.
- Semiconductors: We empower the semiconductor industry by providing essential core components crucial for chip production and the operation of its related equipment, ensuring industry success.
- New Energy: We are actively engaged in the sustainable advancement of innovative energy equipment, promoting eco-friendly technological progress with vigor.
- Automotive: We supply critical components that drive innovation within the automotive industry, supporting the development of smart and electric vehicles.
Main Products
- We excel in producing non-standard customized components, serving extensively in the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, providing us with the capability to masterfully address a vast array of equipment categories. This extraordinary capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision, ensuring top-tier efficiency and meticulous craftsmanship.
- With an illustrious history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, firmly establishing us as pioneers and visionaries in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every raw material that enters the hallowed halls of our warehouse is subjected to an exhaustive barrage of examinations. Only the most rigorous and demanding tests are employed, encompassing detailed evaluations of chemical compositions and exhaustive inspections of physical attributes. Our commitment to quality is unwavering and relentless, as we require every supplier to dutifully provide a Certificate of Origin complemented by a stamped Declaration of Conformity. This meticulous procedure ensures the selection of only the most exceptional materials, perfectly suited for our high-precision medical machining services. Through our rigorous authentication process, we guarantee materials that embody the pinnacle of integrity and purity, aligning flawlessly with our steadfast promise of unparalleled quality.
Intensive In-Process Quality Assurance
In the realm of our intricate and precise machining operations, each component undergoes a meticulous scrutiny process, ensuring its dimensions and tolerances not only meet but exceed our exacting criteria. Our diligent and continuous inspection protocol is meticulously crafted to intercept potential discrepancies at the earliest stages, effectively preventing any non-conforming parts from advancing to subsequent phases. This vigilant and proactive approach is instrumental in minimizing the risk of substandard goods, ensuring unparalleled quality at every production phase, and maintaining a standard of excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our strategic First Article Inspection (FAI) process is an essential cornerstone in identifying and addressing potential production challenges at an embryonic stage. This proactive methodology is crucial in forestalling issues from proliferating into mass production dilemmas. Our FAI process is comprehensive and precise, playing a vital role in minimizing quality risks and ensuring our products consistently reach the zenith of standards. This unwavering commitment to excellence infuses every aspect of the production cycle, guaranteeing that our offerings not only meet but exceed the loftiest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before a single product is permitted to leave our facility, it is subjected to a meticulous and exhaustive final inspection. This rigorous process meticulously evaluates dimensions, visual appearance, performance, and any bespoke customer requirements. Our comprehensive inspection process stands as a testament to our relentless and unyielding commitment to quality, assuring that every part dispatched from our premises aligns with our exacting standards. Our dedication to delivering only the highest quality products to our esteemed customers is unwavering, securing our esteemed reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, blossoming from its foundation laid in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has firmly established itself as a beacon of excellence in the realm of high-precision component machining. Our relentless commitment to pushing the boundaries of innovation over the past two decades has empowered us to delve deeply into technical research, positioning us as trailblazers in the field of precision engineering. We have cultivated an impressive reservoir of technical expertise, elevating us to a stellar market standing that distinguishes us as an industry leader. Our prowess in precision medical machining services is unparalleled, consistently delivering results with extraordinary tight tolerances and flawless surface finishes, making us the top choice within the medical sector.
With four strategically located production bases nestled within the bustling innovation hubs of Shenzhen and Guiyang, fueled by a dedicated and talented workforce of more than 400 skilled employees, Donghui has masterfully crafted a robust and vertically integrated industry chain. This seamless chain merges research and development, production, and delivery, ensuring that we not only meet but exceed the diverse needs of our clientele with unparalleled efficiency and top-tier quality. Our state-of-the-art facilities are primed to tackle the most intricate and demanding machining challenges, maintaining our reputation for exceptional excellence and pioneering 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)