Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends mere duty; it is fueled by an ardent passion for the exquisite artistry and intricate science that define precision manufacturing at its finest. Our unparalleled expertise stands as a beacon in the domain of elite component fabrication, illuminating the way to flawless precision and excellence. We are at the forefront of innovation, crafting and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a vast array of industries, adeptly addressing a diverse range of applications, including:
- Medical and Biotech: Providing meticulously crafted high-precision components and pioneering solutions for cutting-edge medical devices, ensuring the highest echelon of quality standards.
- Semiconductors: Facilitating chip manufacturing and its related equipment by delivering essential core components that are vital to the industry's thriving success.
- New Energy: Actively promoting the robust and sustainable progression of innovative energy equipment, advancing eco-conscious technological development.
- Automotive: Supplying crucial components that propel innovation within the automotive industry, supporting the advancement of intelligent and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, serving the medical, automation, semiconductor, and automotive sectors with unparalleled 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. This guarantees 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 entering our warehouse embarks on a journey of exhaustive and stringent examination. We delve deep into meticulous analyses, scrutinizing the chemical composition and conducting a thorough inspection of the physical properties. Our unwavering commitment to quality shines through as we mandate every supplier to provide a Certificate of Origin and a stamped Declaration of Conformity. This rigorous protocol ensures that only the finest materials grace our high-precision medical machining services, echoing our steadfast dedication to unmatched integrity and purity, perfectly aligned with our pursuit of perfection.
Intensive In-Process Quality Assurance
Within our intricate, precision-driven machining operations, every component undergoes meticulous scrutiny to confirm that its dimensions and tolerances not only meet but exceed our exacting specifications. Our diligent, continuous inspection protocol is strategically architected to intercept potential defects at the earliest stages, preventing non-conforming parts from advancing to subsequent processes. This vigilant methodology is pivotal in minimizing the risk of substandard goods, ensuring unmatched quality at every juncture of production, and maintaining an unwavering standard of excellence throughout the process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy, essential for identifying and resolving potential production challenges at an embryonic stage. This proactive approach acts as a safeguard, preventing issues from burgeoning into mass production hurdles. The comprehensive precision of our FAI process minimizes quality risks, ensuring our products consistently reach the zenith of standards. This unwavering commitment to excellence permeates every facet of the production cycle, guaranteeing that we consistently meet, and indeed exceed, the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product departs our facility, it undergoes a painstakingly meticulous final inspection. This process evaluates dimensions, visual appearance, performance, and any customer-specific nuances with rigorous precision. Our comprehensive inspection process stands as a testament to our relentless commitment to quality, ensuring that every part dispatched mirrors our exacting standards. We are resolute in delivering only the pinnacle of quality products to our valued customers, upholding our reputation for unparalleled excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its foundational roots set in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has magnificently risen as a beacon of expertise in the realm of high-precision basic component machining. With a steadfast commitment to fostering innovation over the last two decades, we have delved with depth into technical research, positioning ourselves as true pioneers in the sphere of precision engineering. We have amassed an unparalleled wealth of technical expertise, carving out a stellar market reputation that distinguishes us as an industry leader. Our unmatched capabilities in precision medical machining services consistently deliver exceptional results, achieving incredibly tight tolerances and flawless surface finishes. These qualities make us the premier choice in the medical sector, ensuring reliability and excellence in every project.
With four strategically positioned production bases in the dynamic hubs of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 highly skilled employees, Donghui has masterfully crafted a robust and vertically integrated industry chain. This seamless integration of research and development, production, and delivery enables us to meet and surpass the diverse needs of our customers with outstanding efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to tackle the most intricate and demanding machining tasks, upholding our reputation for excellence and groundbreaking 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)