Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our relentless pursuit of perfection is fueled by an unwavering passion to excel in the intricate science and refined craftsmanship of manufacturing expertise. Our commitment is to not just meet but to surpass the pinnacle of quality and innovation. Our unrivaled expertise acts as a beacon of precision, skillfully navigating us through the elite realm of component manufacturing with unmatched dexterity and unwavering dedication. As pioneers of innovation, we set the gold standard in creating and delivering state-of-the-art intelligent automation equipment. Our advanced solutions seamlessly integrate across a broad spectrum of industries, catering to diverse requirements in numerous applications, such as:
- Medical and Biotech: Providing meticulously engineered, ultra-high-precision components and visionary solutions crafted for the evolution of medical devices.
- Semiconductors: Enhancing chip production and associated equipment with essential and irreplaceable precision components.
- New Energy: Pioneering the innovative and sustainable advancement of cutting-edge energy equipment.
- Automotive: Delivering critical components that propel innovation within the automotive industry, facilitating the progress of smart and electric vehicles.
Main Products
- Masterfully crafted, non-standard customized components that are indispensable to sectors such as medical, automation, semiconductor, and automotive industries, ensuring unmatched excellence and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations boast an unparalleled fleet of over 300 of the industry's most sophisticated machinery units, ensuring we possess an extensive and diverse catalog of equipment categories. This expansive collection empowers us to remain at the forefront of innovation and adaptability, offering cutting-edge solutions. These top-tier branded machinery units form the backbone of our precision-centric manufacturing, allowing us to expertly meet the intricate and demanding machining requirements across a broad range of industries with exceptional precision and efficiency. Our comprehensive capabilities ensure adherence to the highest quality standards and offer bespoke customization, meticulously tailored to the unique needs of our esteemed clients.
- With a prestigious 20-year legacy, we harness a wealth of manufacturing experience, seamlessly integrated with substantial technical expertise and process strengths, guaranteeing superior quality and ground-breaking innovation. This enduring expertise enables us to consistently deliver extraordinary products that surpass expectations and set new benchmarks in the industry.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: Surpassing Industry Standards
Each raw material entering our secure warehouse undergoes a comprehensive and rigorous evaluation, establishing a gold standard in quality assurance. Our detailed process includes a deep dive into chemical compositions and a meticulous examination of all physical properties. To ensure the utmost excellence, we require that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity, which guarantees that only the highest-grade materials are incorporated into our high-precision medical machining services. This stringent validation process assures the integrity and purity of our materials, consistently maintaining our superior quality standards.
Rigorous In-Process Quality Control: Continuously Striving for Perfection
During the sophisticated machining process, every component is subjected to meticulous scrutiny to ensure its dimensions and tolerances perfectly mirror our demanding specifications. Our continuous inspection protocol actively prevents potential defects from slipping through, ensuring no non-conforming parts advance in the process. This vigilant methodology significantly reduces the risk of substandard production, maintaining exceptional quality at every production stage.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) is fundamental to our strategic framework, adeptly identifying and resolving potential production challenges from the outset. This proactive approach swiftly addresses any issues before they can affect mass production. Our rigorous FAI process is crucial in minimizing quality risks, consistently enabling our products to meet the highest standards, and reflecting our unwavering commitment to excellence throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product exits our facility, it undergoes a comprehensive final inspection. This meticulous evaluation covers dimensions, visual appearance, performance, and any specific customer requirements. Our extensive inspection process exemplifies our relentless dedication to quality, ensuring every product dispatched meets our rigorous standards, delivering only the finest caliber products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Born in the bustling year of 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. boasts a legacy that stretches back to 2002. As a celebrated luminary in high-precision component machining, our odyssey is marked by an unwavering devotion to precision and innovation. For over twenty years, we have masterfully sculpted our domain as avant-garde leaders in precision engineering, relentlessly advancing technical research and setting the gold standard through unmatched expertise and excellence. We have cultivated an exceptional reservoir of technical mastery, positioning ourselves as the definitive market leaders with a legendary reputation for steadfast excellence. Our unparalleled command of precision medical machining services consistently achieves the most exacting tolerances, delivering flawless surface finishes. This fortifies our role as the premier choice in the medical sector, where our precision and dependability garner widespread trust and acclaim.
With four strategically positioned production bases, nestled within the energetic and progressive centers of Shenzhen and Guiyang, and bolstered by a remarkable team of over 400 highly skilled and devoted professionals, Donghui has meticulously crafted a comprehensive and vertically integrated industrial chain. This seamless chain intricately weaves research and development with cutting-edge production and streamlined delivery, ensuring that we not only meet but exceed our clients' diverse demands with extraordinary efficiency and superior quality. Our state-of-the-art facilities are fully equipped to tackle the most intricate and challenging machining tasks, solidifying our esteemed reputation for pioneering excellence and visionary 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)