Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are more than just a company; we are artisans of precision excellence. Upholding the highest standards, we blend the art and science of precision manufacturing to craft components that are nothing short of perfect. Our unwavering commitment to quality craftsmanship and leading-edge technology truly distinguishes us, ensuring outstanding results in every component we meticulously create. Our unparalleled expertise positions us at the forefront of precision engineering. We expertly navigate the elite field of superior component manufacturing, showcasing remarkable skill and refined finesse, and ensuring excellence and innovation at every pivotal turn. As pioneers of innovation, we set an industry benchmark in designing and delivering state-of-the-art intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across a vast array of industries, meeting diverse demands with precision in numerous applications, including:
- Medical and Biotech: Offering impeccably engineered, ultra-high-precision components and revolutionary solutions tailored to meet the needs of advanced medical technologies at the forefront of innovation.
- Semiconductors: Enhancing chip fabrication and related equipment with critical, indispensable components that drive unmatched progress and operational efficiency.
- New Energy: Playing a pivotal role in accelerating the innovative and sustainable development of next-generation energy equipment, shaping a future where energy solutions are both advanced and sustainable.
- Automotive: Providing essential components that lead the way in automotive innovation, advancing the evolution and efficiency of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components represent the pinnacle of precision and excellence. Serving critical sectors such as medical, automation, semiconductor, and automotive industries, we offer unmatched precision and superior quality that withstands the test of time and innovation.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by an extraordinary assembly of over 300 of the most advanced and sophisticated machinery units available in the industry. This extensive and diverse collection of cutting-edge equipment ensures we remain at the pinnacle of innovation and adaptability. By consistently delivering groundbreaking solutions, we set the industry standard for excellence, leading the charge in achieving unparalleled precision and superior quality. These Top-Tier Branded Our cutting-edge machinery units are the cornerstone of our precision-driven manufacturing process, providing the essential infrastructure that upholds our rigorous production standards. With these advanced tools, we refine and perfect our manufacturing processes to consistently deliver outstanding results. Leveraging our high-caliber machines, we skillfully execute complex and demanding machining requirements across a wide range of industries, achieving unmatched levels of precision and efficiency. Our extensive capabilities guarantee unwavering adherence to the highest quality standards, while delivering personalized customization meticulously crafted to not only meet but exceed the unique needs of our esteemed clients, far surpassing their highest expectations.
- With a distinguished 20-year legacy, we draw upon a vast reservoir of manufacturing experience seamlessly integrated with comprehensive technical expertise and process acumen. This harmonious blend ensures not just superior quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that not only exceed expectations but also set new standards of excellence within the industry.
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: Leading the charge in innovation and precision, we transcend industry norms with unmatched methodologies. Crafting the apex of quality benchmarks, we are setting novel standards at every juncture.
Every raw material that enters our cutting-edge warehouse undergoes a stringent evaluation, setting unprecedented standards in quality assurance. Our comprehensive approach involves meticulous chemical composition analysis and precise assessment of physical properties. We mandate that our suppliers furnish a Certificate of Origin alongside a verified Declaration of Conformity to ensure only the highest caliber materials are incorporated into our advanced medical machining services. This detailed validation process protects the integrity and purity of materials, aligning seamlessly with our steadfast dedication to superior quality.
Unyielding In-Process Quality Control: Our tenacity and unparalleled attention to detail propel our pursuit of perfection with an unrelenting focus.
During the intricate machining process, each component undergoes meticulous examination to ensure dimensions and tolerances precisely adhere to our rigorous specifications. This continuous inspection protocol is pivotal for proactively detecting and halting potential defects, preventing the progression of any non-conforming parts. Through this diligent approach, we significantly reduce the risk of manufacturing substandard goods, consistently upholding exceptional quality across every production phase.
Proactive and Comprehensive First Article Inspection (FAI): Our preventative framework is the bedrock of impeccable excellence and unmatched precision.
Our First Article Inspection (FAI) process forms the bedrock of our quality strategy, adeptly pinpointing and addressing potential production challenges from the outset. This proactive methodology ensures issues are mitigated before they escalate into obstacles in mass production. This exhaustive FAI process is crucial in reducing quality risks, guaranteeing our products consistently reach the zenith of standards and reflecting our unwavering commitment to excellence at every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate protector of unparalleled quality and precision.
Before any product exits our facility, it undergoes a thorough and detailed final inspection. This rigorous evaluation considers dimensions, visual appeal, performance, and customer-specific requirements. This meticulous inspection highlights our unwavering commitment to quality, ensuring every part delivered aligns with our exacting standards, thereby offering our esteemed customers the highest quality products.
Packaging & Shipping
Company Profile
Founded in the remarkable year of 2009, with our roots stretching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. shines as a distinguished luminary in the intricate realm of high-precision component machining. Our prestigious journey, driven by an unwavering passion for the art and science of engineering, encompasses over two decades of relentless innovation and meticulous precision. We have expertly established our legacy as trailblazers in precision engineering, consistently exceeding the boundaries of technical research and setting new industry benchmarks. We have honed an extraordinary level of technical acumen, distinguishing ourselves as market vanguards with a sterling reputation for unparalleled excellence. Our unparalleled expertise in precision medical machining services consistently adheres to the most stringent tolerances, delivering impeccable surface finishes. This cements our position as the premier choice in the medical sector, where our precision and dependability continue to earn unwavering trust and profound admiration.
With four strategically positioned production bases, in the vibrant and dynamic hubs of Shenzhen and Guiyang, supported by an inspiring team of over 400 highly skilled employees, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain that effortlessly links research and development, top-tier production, and flawless delivery. This ensures we meet and surpass the diverse needs of our clients with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to tackle the most complex and challenging machining tasks, reinforcing our prestigious 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)