Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere duty; it is fueled by a fiery passion for the art and science of precision manufacturing. We are devoted to delivering excellence in every component we craft. Our unparalleled expertise stands as a beacon in the domain of high-end component fabrication, charting a course to unrivaled precision and craftsmanship. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a diverse range of industries, seamlessly addressing various applications, including:
- Medical and Biotech: Providing meticulously crafted high-precision components and innovative solutions for cutting-edge medical devices, ensuring adherence to the highest quality standards.
- Semiconductors: Facilitating chip production and its related equipment by supplying crucial core components essential for the industry's thriving success.
- New Energy: Actively contributing to the dynamic and sustainable development of pioneering energy equipment, promoting eco-friendly technological advancements.
- Automotive: Supplying essential components that drive innovation within the automotive sector, supporting the progression of smart and electric vehicle technologies.
Main Products
- We excel in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring 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, enabling us to masterfully address a comprehensive spectrum of equipment categories. This impressive capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, ensuring exceptional standards and client satisfaction.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, setting us apart as pioneers and leaders in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Impeccable Incoming Material Assessment
Each raw material that enters our warehouse is subject to a comprehensive and rigorous evaluation process, setting the standard for excellence in quality control. Our extensive analyses meticulously assess the chemical makeup and intricately inspect the physical attributes of these materials. We demand the utmost integrity from our suppliers, requiring each to provide a Certificate of Origin and a stamped Declaration of Conformity. This ensures only the most exceptional materials are selected for our high-precision medical machining services. Our stringent authentication process is designed to ensure these materials meet the highest standards of purity and integrity, perfectly in line with our unwavering commitment to delivering quality.
Robust In-Process Quality Assurance
Within our complex and highly precise machining operations, every component is rigorously scrutinized to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent, continuous inspection protocol strategically intercepts potential defects at an early stage, effectively preventing any non-conforming parts from advancing to subsequent production stages. This vigilant approach is crucial in minimizing the risk of substandard products, guaranteeing superior quality at every stage of production, and maintaining excellence throughout our entire process.
Insightful First Article Inspection (FAI)
Our First Article Inspection (FAI) process serves as a cornerstone strategy for identifying and resolving potential production challenges at their inception. This proactive approach is instrumental in preventing issues from escalating into large-scale production, safeguarding our reputation for quality. The comprehensive and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently achieve the highest standards. This unwavering dedication to excellence infuses every facet of our production cycle, guaranteeing that we not only meet but exceed the most stringent quality benchmarks.
Meticulous and Thorough Final Inspection
Before any product leaves our facility, it undergoes a meticulous and comprehensive final inspection. This rigorous process evaluates dimensions, visual aesthetics, performance, and any specific customer requirements. Our exhaustive inspection procedure is a testament to our relentless commitment to quality, ensuring every part that leaves our facility meets our exacting standards. We are resolute in delivering nothing but the highest quality products to our esteemed customers, thereby upholding our well-earned reputation for excellence and reliability.
Packaging & Shipping
Company Profile
In the dynamic world of precision engineering, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as an emblem of excellence. Established upon a foundation of innovation and expertise dating back to 2009, with roots extending to 2002, our company has carved out a stellar reputation in the realm of high-precision basic component machining. For over twenty years, we have consistently pushed the boundaries of technical research, positioning ourselves as trailblazers within the precision engineering sector. We possess an unparalleled wealth of technical knowledge and experience, garnering a remarkable market reputation that distinguishes us as an industry leader. Our specialized precision medical machining services are unrivaled, achieving exceptionally tight tolerances and pristine surface finishes. This has rendered us the go-to choice within the medical industry, where accuracy and quality are paramount.
With four strategically positioned production centers nestled within the vibrant cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled employees, Donghui has meticulously established a comprehensive and vertically integrated industry chain. This chain seamlessly integrates research and development, production, and delivery processes, allowing us to consistently fulfill and surpass the varied needs of our clientele with unparalleled efficiency and superior quality. Our cutting-edge facilities are designed to tackle the most complex and demanding machining challenges, reinforcing our commitment to 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)