Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., the extraordinary dedication to excellence showcases our unwavering commitment to impeccable craftsmanship and the intricate science that defines manufacturing. We assure that every component crafted by us stands as a testament to the pinnacle of precision engineering mastery. Our unmatched proficiency serves as a guiding light through the esteemed territory of premium component manufacturing. With unparalleled skill and finesse, we cement our status as undisputed leaders in the field. As trailblazers in innovation, we establish the gold standard for crafting and delivering cutting-edge intelligent automation equipment. Our sophisticated solutions effortlessly integrate into a diverse spectrum of industries, addressing extensive requirements across numerous applications, including:
- Medical and Biotech: Providing meticulously engineered, ultra-high-precision components and pioneering solutions tailored for the upcoming generation of medical devices, guaranteeing unmatched precision and reliability.
- Semiconductors: Elevating chip production and associated apparatus with indispensable components that are essential and irreplaceable, propelling forward the progress in semiconductor technology.
- New Energy: Actively contributing to the revolutionary and sustainable development of next-generation energy equipment, fostering eco-friendly innovation and progress.
- Automotive: Delivering crucial components that transform the automotive industry, advancing the development of smart and electric vehicles, and expanding the horizons of innovation.
Main Products
- Masterfully crafted, non-standard customized components serve pivotal industries such as medical, automation, semiconductor, and automotive sectors, offering unparalleled excellence and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations feature an extraordinary assembly of over 300 of the industry's most advanced machinery units. This extensive collection marks us as a leader in innovation and adaptability, ensuring we are equipped to deliver cutting-edge solutions, keeping us at the technological forefront. These Top-Tier Branded machinery units are the foundation of our precision-focused manufacturing prowess. With these superior machines, we expertly meet complex machining demands across various industries, achieving unmatched precision and efficiency. Our broad capabilities guarantee adherence to the highest quality standards while offering bespoke customization, meticulously tailored to the unique preferences of our valued clientele.
- With an esteemed 20-year legacy, we draw on a wealth of manufacturing experience, seamlessly integrated with extensive technical expertise and process acumen. This exceptional proficiency allows us to consistently deliver exemplary products that not only meet but exceed expectations, setting new industry benchmarks.
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: Setting New Industry Benchmarks with Unmatched Precision
Within the fortified walls of our secure warehouse, each raw material undergoes an exhaustive and meticulous evaluation, establishing an esteemed gold standard in quality assurance. Our approach is synonymous with precision as we delve deeply into chemical composition analyses and conduct thorough examinations of physical properties. To ensure unrivaled excellence, we require every supplier to provide a Certificate of Origin and a stamped Declaration of Conformity, allowing only the crème de la crème of materials into our high-precision medical machining services. This rigorous and thorough authentication process guarantees material integrity and purity, unwaveringly adhering to our exceptionally high standards.
Rigorous In-Process Quality Control: Relentlessly Pursuing Perfection with Unyielding Vigilance
Throughout the intricate and precision-driven machining journey, each component is subjected to rigorous and meticulous scrutiny to ensure dimensional and tolerance alignment with our exacting specifications. This continuous inspection protocol acts as a proactive guardian, intercepting potential defects and preventing non-conforming parts from moving forward in the process. By maintaining steadfast vigilance and diligence, we significantly mitigate the risk of substandard goods, ensuring superior quality is maintained at every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Unparalleled Excellence and Precision
Our First Article Inspection (FAI) stands as the cornerstone of our manufacturing strategy, skillfully identifying and resolving potential production challenges at their inception. This proactive and preventive approach effectively averts issues from escalating into larger mass production dilemmas. Our comprehensive FAI process is vital for minimizing quality risks, ensuring that our products consistently achieve the highest standards of excellence, and reflecting our unwavering commitment to precision and quality throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Uncompromising Quality and Precision
Before any product departs from our facility, it undergoes a meticulous and exhaustive final inspection process. This rigorous evaluation rigorously assesses dimensions, visual appeal, performance, and adherence to customer-specific requirements. Our extensive and detailed inspection underscores our relentless dedication to quality, ensuring that each dispatched part meets our stringent standards, delivering nothing but the highest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Founded in the remarkable year of 2009, with our roots tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a paragon of precision and innovation in the world of high-precision component machining. Our extraordinary journey, imbued with a boundless passion and steadfast commitment to engineering's art and science, spans over two impressive decades. We have expertly carved our niche as leaders in precision engineering, fervently advancing technical research and establishing industry standards of unparalleled brilliance. We have developed an extraordinary depth of technical expertise, setting us apart as market leaders with a distinguished reputation for extraordinary excellence. Our supreme proficiency in precision medical machining services consistently meets the most demanding tolerances and delivers flawless surface finishes. This cements our position as the premier choice in the medical sector, where our precision and dependability continue to garner unwavering trust and admiration from our esteemed clientele.
With four strategically located production bases, in the thriving and dynamic centers of Shenzhen and Guiyang, backed by a formidable team of over 400 exceptionally skilled employees, Donghui has carefully cultivated a robust, vertically integrated industry chain. This seamlessly connects research and development, premier production, and flawless delivery, ensuring that we meet and surpass the diverse needs of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to handle the most intricate and challenging machining tasks, reinforcing our esteemed 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)