Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are fervently devoted to mastering the art of precision manufacturing. Where age-old craftsmanship meets state-of-the-art innovation, we forge a new era of excellence. Our unwavering pursuit of perfection ensures each creation is a testament to flawless artistry. Through our dedicated commitment to quality and the latest technology, we set ourselves apart, delivering extraordinary, intricately crafted components that stand as a pinnacle of precision. With unrivaled expertise in precision engineering, we set the gold standard for component excellence. Our remarkable agility and sophisticated finesse guarantee superior quality in every aspect of our operations, cementing our status as industry pioneers and leaders. As pioneers of innovation, we elevate the benchmark in designing and delivering groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly integrate into a wide array of industries, adeptly addressing the unique challenges of diverse applications, including:
- Medical and BiotechOur meticulously crafted, ultra-high-precision components and transformative solutions are at the forefront of advanced medical technologies, establishing new standards of excellence within the field.
- SemiconductorsBy providing essential, critical components, we propel chip fabrication and related equipment, driving remarkable advancements and boosting efficiency in the semiconductor industry.
- New EnergyWe are key contributors to the innovative and sustainable evolution of next-generation energy equipment, playing a crucial role in shaping the future landscape of energy solutions.
- AutomotiveSupplying vital components, we are at the forefront of innovation within the automotive industry. Our contributions further the development of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Serving essential sectors such as medical, automation, semiconductor, and automotive industries, we offer unparalleled precision and superior quality that withstands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are driven by a remarkable and unrivaled fleet of over 300 of the industry's most advanced machinery units. This extensive and cutting-edge collection cements our leadership in innovation and adaptability. By persistently delivering groundbreaking and pioneering solutions, we set the industry benchmark for unparalleled excellence, always striving toward unprecedented precision and exemplary quality. These Top-Tier Branded Our pioneering and state-of-the-art machinery units are the solid foundation of our precision-focused manufacturing process. They form the critical infrastructure that supports our unwavering commitment to production standards of the highest caliber. Through these advanced tools, we continuously refine and enhance our manufacturing methods to achieve outstanding and consistently remarkable results. With our high-caliber machines, we meticulously execute complex and demanding machining tasks across diverse industries, achieving unparalleled precision and exceptional efficiency. Our vast capabilities ensure strict adherence to the highest quality standards while offering bespoke customization that not only meets but consistently exceeds the distinct needs of our cherished clients, greatly surpassing even their loftiest expectations.
- Celebrating a prestigious 20-year legacy, we draw upon a wealth of manufacturing experience intricately blended with deep technical expertise and process mastery. This harmonious synergy guarantees not only outstanding quality but also groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and set new industry standards of excellence.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: In the vibrant realm where cutting-edge innovation meets precision, we exceed the towering demands of our industry with unmatched methodologies. Our dedication sets the stage for superior quality benchmarks, setting revolutionary standards that resonate across the entire spectrum of our production journey, ensuring excellence at every step.
Every raw material entering our state-of-the-art warehouse undergoes an intensive evaluation, establishing the gold standard in quality assurance. Our thorough process includes detailed chemical composition analysis and rigorous physical property assessments. Suppliers are required to provide a Certificate of Origin with a verified Declaration of Conformity, ensuring only the finest materials are utilized in our premier medical machining services. This meticulous validation process upholds the integrity and purity of materials, perfectly aligning with our unwavering dedication to superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering eye for detail, we tirelessly pursue perfection, driven by steadfast dedication and commitment. This process guarantees that our standards of excellence are continually met and surpassed.
Throughout the intricate machining process, each component is subject to meticulous scrutiny to confirm that dimensions and tolerances align precisely with our rigorous specifications. This continuous inspection protocol is essential in proactively identifying and preventing potential defects, ensuring no non-conforming parts progress. Through this careful strategy, we significantly minimize the risk of producing substandard goods, consistently maintaining exceptional quality at every production phase.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventive framework is the bedrock of immaculate excellence, personifying unmatched precision and thoroughness.
The First Article Inspection (FAI) process is the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges from the very beginning. This forward-thinking approach ensures issues are addressed before they evolve into significant production impediments. Our exhaustive FAI process is crucial in minimizing quality risks, ensuring our products consistently achieve the pinnacle of standards, reinforcing our unwavering commitment to excellence throughout the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, ensuring the delivery of flawless perfection.
Before any product departs from our facility, it undergoes a meticulous and detailed final comprehensive inspection. This rigorous evaluation covers dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our steadfast dedication to quality, ensuring every part delivered meets our demanding standards, thereby providing our distinguished customers with products of the utmost caliber and excellence.
Packaging & Shipping
Company Profile
In the illustrious year of 2009, though our roots extend back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. established itself as a beacon in the elite realm of high-precision component machining. Our distinguished journey has been driven by an unwavering passion for the subtle art and demanding science of engineering, spanning over two decades of relentless innovation and remarkable precision. We have masterfully carved our name as trailblazers in precision engineering, continuously advancing technical research and setting revolutionary standards in the industry, consistently exceeding expectations in both innovation and unmatched quality. We have assiduously developed an extraordinary level of technical expertise, elevating ourselves as market leaders with a prestigious reputation for unparalleled excellence. Our mastery in precision medical machining services is unparalleled, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This unwavering commitment solidifies our status as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us enduring trust and respect, making us the leading name for superior machining solutions.
With four strategically positioned production facilities, in the dynamic and bustling centers of Shenzhen and Guiyang, and bolstered by a formidable team of over 400 highly qualified specialists, Donghui has masterfully crafted a comprehensive, vertically integrated industry chain. This chain seamlessly integrates cutting-edge research and development, superior production, and flawless delivery. Our operations ensure we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unrivaled quality. Our state-of-the-art facilities are meticulously designed to tackle the most intricate and demanding machining tasks, reinforcing our esteemed 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)