Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we immerse ourselves in a world where excellence is not just an aspiration but a lived reality. Our commitment to the art of precision manufacturing is unwavering, ensuring that every masterpiece we bring to life is a hallmark of immaculate perfection. With an unyielding dedication to quality craftsmanship and cutting-edge technology, we distinguish ourselves by consistently delivering extraordinary results in each meticulously crafted component. Our unmatched expertise reigns supreme in the domain of precision engineering. We navigate the esteemed craft of component manufacturing with unrivaled dexterity and sophisticated finesse, ensuring excellence and innovation at every step. As pioneers of technological innovation, we set the gold standard in crafting and delivering groundbreaking intelligent automation equipment. Our avant-garde solutions seamlessly integrate into numerous industries, adeptly addressing diverse demands in a wide array of applications, including:
- Medical and Biotech: Presenting impeccably engineered, ultra-high-precision components alongside transformative solutions, tailored for pushing the boundaries of advanced medical technologies.
- Semiconductors: Elevating chip fabrication and related equipment with indispensable, critical components that drive extraordinary advancements, enhancing efficiency and performance.
- New Energy: Playing a pivotal role in propelling the innovative and sustainable development of next-generation energy equipment, crucially shaping the future landscape of energy solutions.
- Automotive: Supplying key components that spark innovation within the automotive industry, propelling the evolution of intelligent and electric vehicles into a new era.
Main Products
- Our expertly crafted non-standard customized components stand as the pinnacle of excellence. Catering to pivotal sectors such as medical, automation, semiconductor, and automotive industries, we offer unmatched precision and superior quality that withstand the test of time, ensuring enduring performance and reliability.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Empowered by a formidable fleet of over 300 state-of-the-art machinery units, we spearhead innovation and adaptability in the industry. This remarkable collection sets the benchmark for excellence, consistently delivering revolutionary solutions. We are committed to achieving ultimate precision and quality, solidifying our position at the forefront with groundbreaking standards. These Top-Tier Branded Our cutting-edge machinery is the backbone of our precision-driven manufacturing process, underpinning the stringent standards that define our production prowess. Leveraging these advanced tools, we perpetually refine our strategies, producing exceptional results that consistently set us apart in the realm of precision engineering. Deploying our top-tier machines, we masterfully handle intricate machining challenges across various sectors, ensuring unrivaled precision and efficiency. Our expansive capabilities guarantee steadfast compliance with supreme quality standards, delivering bespoke solutions that not only align with but also transcend the lofty expectations of our distinguished clientele.
- Boasting a distinguished 20-year legacy, we harness a wealth of manufacturing experience fused seamlessly with comprehensive technical expertise and process excellence. This perfect synergy ensures not only superior product quality but also trailblazing innovation, empowering us to continually set new benchmarks of excellence in 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: At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., where innovation meets precision, we not only meet but exceed industry expectations by implementing unrivaled methodologies. Proudly setting the bar, we craft superior quality benchmarks, establishing revolutionary standards at every stage of our production journey.
Every raw material entering our cutting-edge warehouse undergoes a thorough evaluation, pioneering a new echelon of quality assurance. Our detailed strategy includes comprehensive chemical composition analysis and exact physical property assessments. We mandate our suppliers to furnish a Certificate of Origin along with a verified Declaration of Conformity, ensuring only top-tier materials are employed in our advanced medical machining services. This meticulous verification process preserves the integrity and purity of materials, perfectly reflecting our steadfast commitment to superior quality.
Unyielding In-Process Quality Control: Our pursuit of perfection is driven by relentless vigilance and meticulous attention to detail, with unwavering dedication.
Throughout the intricate machining process, each component is meticulously examined to ensure dimensions and tolerances align precisely with our stringent specifications. This continuous inspection protocol is vital for proactively identifying and intercepting potential defects, preventing any non-conforming parts from proceeding. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring exceptional quality is maintained at every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the cornerstone of impeccable excellence and unmatched precision.
Our First Article Inspection (FAI) process is foundational to our quality strategy, expertly identifying and resolving potential production challenges from the start. This proactive approach ensures issues are addressed before escalating into mass production obstacles. The comprehensive FAI process is crucial in minimizing quality risks, ensuring our products consistently reach the highest standards, embodying our unwavering commitment to excellence throughout every stage of production.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of extraordinary quality and precision.
Before any product departs our facility, it undergoes a thorough and detailed final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This meticulous inspection process underscores our steadfast dedication to quality, ensuring every part delivered meets our exacting standards, thus providing our esteemed customers with the highest quality products.
Packaging & Shipping
Company Profile
Established in the distinguished year of 2009, with roots dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a luminary in the sophisticated realm of high-precision component machining. Our illustrious journey, fueled by a deep-seated passion for the intricate art and rigorous science of engineering, spans over two decades of relentless innovation and masterful precision. We have deftly etched our place as trailblazers in precision engineering, continuously advancing the frontiers of technical research and establishing groundbreaking benchmarks within the industry. We have nurtured an exceptional caliber of technical acumen, positioning ourselves as market vanguards with a stellar reputation for unparalleled excellence. Our unrivaled expertise in precision medical machining services consistently meets the most exacting tolerances, delivering flawless surface finishes. This cements our status as the preeminent choice in the medical sector, where our precision and steadfast reliability continue to earn unwavering trust and esteem.
With four strategically located production bases, in the dynamic and bustling centers of Shenzhen and Guiyang, backed by an impressive team of over 400 highly skilled professionals, Donghui has intricately developed a comprehensive, vertically integrated industry chain that flawlessly links research and development, superior production, and impeccable delivery. This ensures we consistently meet and surpass the diverse needs of our clients with extraordinary efficiency and unmatched quality. Our cutting-edge facilities are fully equipped to undertake the most complex and demanding 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)