Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we adhere to an unwavering commitment to excellence. Our company is fueled by a profound dedication to mastering both the artistry and scientific principles that form the foundation of precision manufacturing. This steadfast dedication ensures that our craftsmanship reaches unparalleled heights, coupled with intricate technological brilliance. Our unmatched expertise illuminates the path of precision engineering, guiding us with exceptional acumen and finesse through the esteemed realm of high-quality component manufacturing. As pioneers at the forefront of innovation, we set the benchmark in designing and delivering transformative intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate into a vast array of industries, addressing diverse requirements across numerous applications, including:
- Medical and Biotech: We offer precisely engineered, ultra-high-precision components, alongside visionary solutions crafted for the new era of advanced medical technologies, underscoring our commitment to the healthcare industry's future.
- Semiconductors: We enhance chip fabrication and related equipment through the provision of critical and indispensable components that are essential for driving progress and operational efficiency.
- New Energy: We play a crucial role in propelling the innovative and sustainable development of cutting-edge energy equipment poised for the future, aligning with global ecological aspirations.
- Automotive: We supply indispensable components that spark innovation within the automotive industry, propelling the advancement of intelligent and electric vehicles, and shaping the future of transportation.
Main Products
- Our expertly crafted, non-standard customized components are engineered to meet the highest standards of excellence. These components serve critical sectors such as medical, automation, semiconductor, and automotive industries, delivering unmatched precision and quality that our clients trust.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations proudly showcase an extraordinary fleet of over 300 of the industry's most advanced and sophisticated machinery units. This impressive and comprehensive collection ensures an extensive range of equipment categories, empowering us to lead in innovation and flexibility. By leveraging this formidable arsenal, we consistently deliver pioneering solutions that set the gold standard for industry excellence. These Top-Tier Branded machinery units form the backbone of our precision-centric manufacturing process. Equipped with our state-of-the-art, high-caliber machines, we adeptly meet the most intricate and demanding machining requirements across a multitude of industries. Our remarkable precision and efficiency shine through, ensuring steadfast adherence to the highest quality standards. We offer bespoke customization, exquisitely tailored to address the distinctive needs of our esteemed clientele, consistently surpassing their lofty expectations.
- With a distinguished 20-year legacy, we leverage a rich reservoir of manufacturing experience seamlessly integrated with deep technical expertise and robust process strengths. This dynamic synergy guarantees unparalleled quality and groundbreaking innovation, empowering us to continually deliver extraordinary products that not only surpass expectations but also redefine industry benchmarks.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we transcend industry benchmarks, deploying unparalleled precision.
Every single piece of raw material entering our secure warehouse is subjected to an exhaustive and extraordinary evaluation process, setting a new industry standard for quality assurance. Our diligent approach integrates a meticulous analysis of chemical composition with a comprehensive examination of physical properties. Upholding our commitment to excellence, we demand a Certificate of Origin and a stamped Declaration of Conformity from each supplier, guaranteeing that only superior materials are infused into our cutting-edge medical machining services. This rigorous validation process ensures the integrity and purity of materials, perfectly aligning with our unwavering pledge to uphold superior standards.
Uncompromising In-Process Quality Control: Our relentless vigilance and meticulous attention to detail drive us forward, as we continuously pursue perfection.
Throughout the intricate machining process, every component is subjected to meticulous scrutiny, ensuring dimensions and tolerances flawlessly align with our stringent specifications. This continuous inspection protocol is crucial in proactively identifying and intercepting potential defects, thereby preventing any non-conforming parts from progressing. Through this vigilant strategy, we significantly mitigate the risk of producing substandard products, maintaining exceptional quality consistently across every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework lays the foundation for impeccable excellence and precision.
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, expertly identifying and resolving potential production challenges at inception. This proactive methodology ensures that issues are contained before escalating into mass production concerns. This comprehensive FAI process is pivotal in mitigating quality risks, ensuring our products consistently achieve the pinnacle of standards, reflecting our unwavering dedication to excellence at every stage of the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of unmatched quality and precision.
Before any product departs from our facility, it undergoes an exhaustive final inspection. This rigorous evaluation encompasses dimensions, visual appearance, performance, and customer-specific requirements. This comprehensive inspection exemplifies our relentless commitment to quality, ensuring every part we deliver meets our stringent standards, thereby providing only the finest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, with origins deeply rooted back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. proudly stands as a distinguished leader in the intricate world of high-precision component machining. Our esteemed journey, fueled by a deep-seated passion for both the art and science of engineering, spans two decades of relentless innovation and precision. We have expertly carved our niche as pioneers in precision engineering, consistently pushing the boundaries of technical research and setting new, unprecedented industry standards. We have cultivated an unparalleled level of technical expertise, setting ourselves apart as market leaders with an esteemed reputation for outstanding excellence. Our unmatched proficiency in precision medical machining services consistently adheres to the most stringent tolerances, delivering flawless surface finishes. This solidifies our position as the leading choice in the medical sector, where our precision and reliability continue to garner unwavering trust and admiration.
With four strategically positioned production bases, in the vibrant and thriving centers of Shenzhen and Guiyang, supported by an inspiring team of over 400 highly skilled employees, Donghui has meticulously developed a comprehensive, vertically integrated industry chain that seamlessly connects research and development, top-tier production, and flawless delivery. This ensures we meet and exceed the diverse needs of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to tackle the most complex and challenging machining tasks, reinforcing our prestigious 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)