Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication transcends mere obligations, driven by an unwavering zeal for the intricate craftsmanship and precise science of high-quality precision manufacturing. Our unmatched proficiency radiates in the realm of elite component fabrication, setting benchmarks for precision and outstanding excellence. We lead the charge in the creation and innovation of intelligent automation equipment. Our cutting-edge solutions span across diverse industries, effectively catering to an extensive range of applications, which include:
- Medical and Biotech: Providing meticulously crafted, high-precision components and pioneering solutions for advanced medical devices, consistently maintaining superior quality standards.
- Semiconductors: Elevating chip production and related equipment by offering indispensable core components crucial to the industry's success and evolution.
- New Energy: Playing an active role in the dynamic and sustainable advancement of innovative energy equipment, fostering eco-friendly technological progress.
- Automotive: Providing essential components that propel innovation in the automotive industry, supporting the development and expansion of smart and electric vehicles.
Main Products
- We excel in producing non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unparalleled precision and exceptional quality at every step.
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 capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unmatched Incoming Material Assessment
Each raw material that enters our facility embarks on a thorough expedition of rigorous scrutiny. This meticulous procedure includes comprehensive analyses of both chemical and physical properties. Our steadfast dedication to excellence requires every supplier to provide a Certificate of Origin alongside a stamped Declaration of Conformity. This discerning selection process guarantees that only the highest-quality materials are selected for our precision medical machining services. Our rigorous validation procedures assure that these materials adhere to the highest standards of integrity and purity, reflecting our unwavering commitment to exceptional quality.
Intensive In-Process Quality Assurance
During our complex and high-stakes machining operations, each component undergoes exhaustive scrutiny to ensure its dimensions and tolerances not only meet but exceed our stringent specifications. Our vigilant and ongoing inspection protocol is expertly designed to identify and rectify potential discrepancies at the earliest stages possible. This proactive approach is crucial in preventing the progression of non-conforming parts to subsequent stages, thereby drastically reducing the risk of substandard products. In doing so, premium quality is consistently maintained throughout every phase of production, epitomizing our relentless pursuit of excellence.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) serves as a fundamental strategy, pivotal in preemptively identifying and resolving potential production challenges. This anticipatory approach is essential in preventing issues from escalating into mass production. The exhaustive and precise methodology of our FAI is integral to mitigating quality risks, ensuring our products consistently reach the highest standards. This unwavering commitment to excellence is woven throughout every aspect of the production cycle, ensuring our offerings not only meet but continually surpass the highest quality benchmarks.
Thorough and Meticulous Final Inspection
Before any product exits our facility, it undergoes an exacting and comprehensive final inspection. This rigorous process meticulously examines every detail, from dimensions and visual appeal to performance and any specific customer requirements. Our all-encompassing inspection protocol is a testament to our relentless pursuit of quality, ensuring that every component departing our facility adheres to our exact standards. Our unwavering commitment is to deliver only the finest quality products to our esteemed customers, maintaining our revered reputation for excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Founded in 2009, with its origins dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of excellence in the realm of high-precision component machining. Possessing an unyielding commitment to pioneering advancements, we have, over the last two decades, established an indelible mark in precision engineering, driven by profound technical exploration and innovation. We boast a comprehensive reservoir of technical proficiency, securing a distinguished market reputation that distinctly positions us as industry frontrunners. Our unrivaled capabilities in precision medical machining services consistently achieve exceptionally tight tolerances with flawless surface finishes. This makes us the go-to partner in the medical sector, where precision is paramount.
With our four strategically positioned production bases located in the dynamic centers of Shenzhen and Guiyang, and supported by a skilled team of over 400 dedicated professionals, Donghui has engineered a comprehensive and vertically integrated industry chain. This seamless integration of research and development, production, and delivery ensures our ability to fulfill and surpass the diverse requirements of our clientele with superior efficiency and unmatched quality. Our cutting-edge facilities are meticulously designed to tackle the most complex and challenging machining projects, reinforcing our reputation for delivering excellence and pioneering breakthroughs.
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)