Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere responsibility; it is fueled by an intense passion for the artful craft and intricate science of precision manufacturing. Our unparalleled expertise acts as a beacon in the world of high-end component fabrication, lighting the way to exceptional precision and excellence. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our advanced solutions serve a wide array of industries, efficiently addressing diverse applications, including:
- Medical and Biotech: Delivering meticulously crafted high-precision components and cutting-edge solutions for the most advanced medical devices, maintaining the highest quality standards.
- Semiconductors: Facilitating chip production and its essential equipment by providing indispensable core components that are pivotal to the industry's success and innovation.
- New Energy: Actively contributing to the dynamic and sustainable development of cutting-edge energy equipment, promoting eco-friendly technological advancements.
- Automotive: Supplying crucial components that drive innovation within the automotive industry, supporting the development of intelligent and electric vehicles.
Main Products
- We excel in producing non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive sectors, ensuring unsurpassed precision and top-tier 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 remarkable capability empowers us to skillfully fulfill the intricate machining needs of diverse industries, executing each task with an unmatched level of precision and efficiency that stands at the forefront of the industry.
- With a rich history spanning two decades, we harness an expansive production experience melded with substantial technical and process expertise, guaranteeing exceptional quality and forward-thinking innovation. This dedication sets us apart as pioneering leaders in the realm of precision engineering, continually pushing the boundaries of excellence.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Robust Incoming Material Examination
Each raw material that graces our warehouse is immediately subjected to a comprehensive and rigorous examination process. This meticulous scrutiny involves detailed evaluations of chemical compositions and a thorough inspection of physical properties, ensuring that only top-tier materials are chosen. By demanding a Certificate of Origin and a stamped Declaration of Conformity from every supplier, we exemplify our unwavering dedication to excellence. Our authentication process is crafted to guarantee materials of unparalleled integrity and purity, aligning seamlessly with our commitment to delivering high-precision medical machining services of the highest quality.
Rigorous In-Process Quality Assurance
In the heart of our advanced machining operations, each component is rigorously assessed to ensure it not only meets but surpasses our stringent specifications for dimensions and tolerances. Our incisive and continuous inspection protocol is adeptly designed to intercept potential defects at their nascent stage, effectively barring non-conforming parts from advancing further. This vigilant, methodical approach is crucial in curtailing the risk of substandard goods, thereby ensuring unparalleled quality at every production phase and maintaining excellence throughout our entire process.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) process is pivotal, functioning as a strategic linchpin in identifying and resolving production challenges early on. This foresighted approach is instrumental in preventing issues from proliferating into mass production. The exhaustive and precise nature of our FAI process is critical in mitigating quality risks, guaranteeing that our products consistently achieve the zenith of standards. Our unwavering commitment to excellence is embedded in every phase of the production cycle, ensuring that we not only meet but consistently exceed the loftiest quality benchmarks.
Comprehensive and Detailed Final Inspection
Before any product departs our premises, it is meticulously subjected to a detailed final inspection. This rigorous procedure evaluates dimensions, aesthetic quality, performance, and any bespoke customer requirements, serving as a hallmark of our relentless dedication to quality. Our all-encompassing inspection process is a testament to our commitment to delivering only the finest products, safeguarding our esteemed reputation for excellence and reliability. We are resolute in ensuring that every dispatch from our facility embodies our high standards, delivering outstanding quality to our cherished customers.
Packaging & Shipping
Company Profile
Since its inception in 2009, stemming from its foundational roots established back in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of expertise in the realm of high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of technical expertise, earning an impeccable market reputation that distinguishes us as a leader in the industry. Our capabilities in precision medical machining services remain unmatched, consistently achieving incredibly tight tolerances and pristine surface finishes, making us the preferred choice in the medical sector.
With four strategically located production bases in the dynamic hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 highly skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This seamlessly unites research and development, production, and delivery, ensuring we not only meet but exceed the diverse needs of our esteemed customers with exceptional efficiency and peerless quality. Our state-of-the-art facilities are adept at handling the most intricate and demanding machining tasks, upholding our reputation for 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)