Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is an embodiment of passion and excellence, driven by a profound zeal for the art and science of precision manufacturing. Our unparalleled expertise shines brilliantly in the domain of high-end component fabrication, guiding towards the apex of meticulous precision and perfection. We are at the forefront of crafting revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries and address diverse applications, including:
- Medical and Biotech: Delivering meticulously engineered high-precision components and innovative solutions for cutting-edge medical devices, while maintaining the highest echelon of quality standards.
- Semiconductors: Empowering the semiconductor industry by providing crucial core components indispensable for the success of chip production and its related equipment.
- New Energy: Committed to the dynamic and sustainable progress of advanced energy equipment, propelling eco-friendly technological advancements.
- Automotive: Supplying essential components that spearhead innovation in the automotive industry, facilitating the evolution of intelligent and electric vehicles.
Main Products
- Our specialization lies in non-standard customized components, serving extensively across the medical, automation, semiconductor, and automotive sectors, ensuring unmatched precision and exceptional 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 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
Exemplary Incoming Material Examination
Each raw material that enters our warehouse embarks on an exhaustive journey of stringent examination. We meticulously dissect these materials, delving into their chemical compositions while conducting a thorough investigation of their physical properties. Our unwavering dedication to quality commands that every supplier furnishes a Certificate of Origin alongside a stamped Declaration of Conformity. This rigorous protocol ensures that only the finest materials are chosen for our high-precision medical machining services. Our authentication process guarantees these materials uphold the highest integrity and purity, aligning perfectly with our steadfast commitment to superior quality.
Intensive In-Process Quality Assurance
Within our intricate and precise machining operations, each component is subjected to meticulous scrutiny to ensure its dimensions and tolerances not only meet but exceed our exacting specifications. Our diligent and continuous inspection protocol is strategically designed to intercept any potential defects early, thus preventing non-conforming parts from advancing to subsequent production stages. This vigilant approach is vital in minimizing the risk of substandard goods, assuring superior quality at each phase of production, and maintaining excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy that is crucial for identifying and resolving potential production challenges at an early stage. By adopting this proactive approach, we effectively prevent issues from escalating into mass production. The comprehensive and precise nature of our FAI process is pivotal in minimizing quality risks, ensuring that our products consistently rise to the highest standards. This dedication to excellence is woven into every aspect of the production cycle, guaranteeing that we meet and surpass the most stringent quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product departs our facility, it undergoes a meticulous and thorough final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and customer-specific requirements to ensure perfection. Our comprehensive inspection process exemplifies our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are steadfast in delivering only the highest quality products to our valued customers, reinforcing our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009 and tracing its historical roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has firmly positioned itself as a beacon of excellence in the realm of high-precision component machining. For over two decades, our unwavering commitment to relentless innovation has propelled us to the forefront of technical research, solidifying our reputation as pioneers in the world of precision engineering. We have cultivated an extensive reservoir of technical expertise that has earned us a distinguished market standing. This sterling reputation distinguishes us as industry leaders. Our precision medical machining services consistently achieve extraordinarily tight tolerances and flawless surface finishes, making us the premier choice within the medical sector.
With four strategically positioned production bases located in the vibrant hubs of Shenzhen and Guiyang, and backed by a dedicated team of over 400 skilled employees, Donghui has engineered a comprehensive and vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we not only meet but exceed the diverse requirements of our clients with exceptional efficiency and unparalleled quality. Our cutting-edge facilities are adept at tackling the most intricate and challenging machining tasks, preserving our renowned 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)