Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication to excellence is the engine driving us to master the fine art of manufacturing. Our core mission revolves around exceeding the pinnacle of quality and innovation, crafting products that set the standard in precision and durability. Our expertise is a beacon in the world of precision manufacturing, propelling us to the top echelon of elite component producers. With unparalleled skill and commitment, we illuminate the path of craftsmanship, achieving perfection in every creation. As pioneers in innovation, we are the gold standard in crafting revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate into a multitude of industries, meeting diverse demands in countless applications, such as:
- Medical and Biotech: Delivering precisely engineered, ultra-high-precision components and future-focused solutions that spearhead the evolution of medical devices.
- Semiconductors: Enhancing chip manufacturing and related equipment with indispensable components that are crucial and cannot be replaced.
- New Energy: Spearheading the evolution of innovative and sustainable energy equipment, paving the way for a cleaner future.
- Automotive: Providing essential components that fuel innovation within the automotive sector, supporting the growth of intelligent and electric vehicles.
Main Products
- Meticulously crafted, bespoke components serve critical industries such as medical, automation, semiconductor, and automotive sectors with unparalleled precision and excellence, driving progress and innovation in each field.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations boast an impressive fleet comprising over 300 of the most advanced machinery units in the industry. This extensive and varied catalog of state-of-the-art equipment empowers us to lead in both innovation and adaptability. By maintaining this vast collection, we ensure our ability to provide cutting-edge solutions to diverse industrial challenges. These premier branded machinery units form the cornerstone of our commitment to precision-driven manufacturing excellence, allowing us to expertly cater to the intricate and exacting machining needs across a multitude of industries with unmatched precision and efficiency. Our all-encompassing capabilities guarantee adherence to the highest quality standards and provide bespoke customization, meticulously crafted to the distinctive requirements of our valued clients.
- With a distinguished 20-year legacy, we leverage a rich reservoir of manufacturing prowess, seamlessly intertwined with profound technical expertise and robust process strengths. This ensures the delivery of superior quality and pioneering innovation, consistently exceeding expectations and establishing 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: Surpassing Industry Standards
Each piece of raw material entering our secure warehouse undergoes an uncompromising evaluation, establishing an unrivaled standard in quality assurance. Our exhaustive analysis covers chemical compositions and all physical properties, ensuring only the elite materials make it into our high-precision medical machining services. Suppliers must present a Certificate of Origin and a stamped Declaration of Conformity, guaranteeing material integrity and purity. This stringent validation process is the bedrock of our unwavering pursuit of quality, ensuring only the finest materials meet our exacting standards.
Rigorous In-Process Quality Control: Continuously Striving for Perfection
Each component, as it undergoes the meticulous machining process, is thoroughly checked to ensure flawless alignment with our precise specifications. This relentless inspection protocol identifies potential defects early, effectively halting any non-compliant parts from progressing. By maintaining vigilance at every step, we safeguard the superior quality of our products, drastically reducing the risk of defects and upholding our commitment to perfection in production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) forms the strategic foundation of our commitment to quality, adeptly pinpointing and resolving potential production hurdles at the outset. This proactive strategy ensures that challenges are promptly addressed, preventing escalation as production scales. By minimizing quality risks through this thorough process, we consistently achieve the pinnacle of standards, embodying our steadfast dedication to excellence throughout the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before leaving our facility, every product undergoes an intensive final inspection, encompassing dimensions, visual appearance, performance, and specific customer requirements. This exhaustive process underscores our unwavering dedication to quality, ensuring that every dispatched part meets our rigorous standards. We deliver only the highest caliber products to our esteemed customers, a testament to our relentless pursuit of excellence and quality assurance.
Packaging & Shipping
Company Profile
Established in the vibrant year of 2009, with roots tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of precision and innovation in the world of high-precision component machining. Our journey, fueled by a relentless passion and a steadfast dedication to the art and science of engineering, has spanned over two glorious decades. We have passionately carved our niche as pioneering trailblazers in precision engineering, relentlessly pursuing cutting-edge technical research and setting the industry's gold standard for unparalleled excellence. We have accumulated an unparalleled depth of technical expertise, distinguishing ourselves as undisputed market leaders with a renowned reputation for unwavering excellence. Our supreme mastery in precision medical machining services consistently exceeds the most stringent tolerances, delivering impeccable surface finishes. This solidifies our standing as the foremost choice in the medical sector, where our precision and reliability earn us widespread trust and admiration.
With four strategically located production bases, in the dynamic and innovative hubs of Shenzhen and Guiyang, and driven by an inspiring workforce of over 400 highly skilled and dedicated employees, Donghui has meticulously developed a robust and vertically integrated industry chain. This seamless chain intricately connects research and development, state-of-the-art production, and efficient delivery, ensuring that we meet and exceed the diverse needs of our clients with remarkable efficiency and unmatched quality. Our cutting-edge facilities are fully equipped to handle the most complex and challenging machining tasks, reinforcing our prestigious reputation for pioneering excellence and forward-thinking 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)