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. Boasting unmatched expertise in precision engineering, we proudly set the gold standard for component excellence. Our exceptional agility and sophisticated finesse guarantee superior quality across all facets of our operations, firmly establishing our reputation as industry innovators and leaders. As trailblazers of innovation, we raise the bar in crafting and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions integrate seamlessly across various industries, expertly tackling the distinct 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, setting 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 powered by an extraordinary arsenal of over 300 of the industry's most state-of-the-art machinery units. This extensive, avant-garde collection secures our forefront position in both innovation and adaptability. By delivering revolutionary solutions time and again, we establish the gold standard in the industry for excellence, constantly pushing the boundaries towards unmatched precision and superior quality. These Top-Tier Branded Our groundbreaking machinery units are the cornerstone of our precision-driven manufacturing process, forming the vital backbone that upholds our steadfast production standards. Through these cutting-edge tools, we perpetually refine and elevate our manufacturing techniques to consistently achieve exceptional outcomes. With our elite machines, we expertly carry out intricate and challenging machining tasks across a multitude of industries, attaining unmatched precision and efficiency. Our extensive capabilities ensure rigorous adherence to the pinnacle of quality standards while providing custom-tailored solutions that not only meet but consistently surpass the unique demands of our valued clients, significantly exceeding their greatest expectations.
- Celebrating a distinguished 20-year legacy, we leverage a wealth of manufacturing experience intricately interwoven with profound technical expertise and process mastery. This harmonious blend guarantees not only superior quality but also pioneering innovation. We empower ourselves to consistently deliver remarkable products that exceed expectations and establish new industry benchmarks 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 ever-evolving realm where groundbreaking innovation intersects with unparalleled precision, our dedication goes beyond merely meeting the industry's high standards; we shatter them with groundbreaking methodologies. We proudly anchor an era of superior quality benchmarks, establishing revolutionary standards that echo profoundly throughout every stage of our production journey.
Every raw material that enters our state-of-the-art warehouse is subjected to a meticulous and exhaustive evaluation, setting the benchmark for excellence in quality assurance. Our thorough approach involves an in-depth chemical composition analysis coupled with rigorous physical property assessments. Suppliers are required to present a Certificate of Origin alongside a verified Declaration of Conformity, ensuring that only top-tier materials are selected for our cutting-edge medical machining services. This meticulous validation process fortifies the integrity and purity of materials, perfectly aligning with our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and a keen eye for detail, we relentlessly pursue perfection, driven by steadfast dedication and commitment. This rigorous process guarantees that our standards of excellence are consistently upheld and surpassed.
Throughout the intricate machining process, each component is subjected to meticulous scrutiny, ensuring that dimensions and tolerances align precisely with our stringent specifications. This ongoing inspection protocol is crucial in proactively identifying and intercepting potential defects, thereby preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly mitigate the risk of producing subpar goods, consistently ensuring exceptional quality at every phase of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of immaculate excellence, embodying unparalleled precision and thoroughness.
The First Article Inspection (FAI) process serves as the bedrock of our quality strategy, adeptly identifying and resolving production challenges from the outset. This forward-thinking approach ensures that potential issues are addressed before they escalate into mass production impediments. Our thorough FAI process is indispensable in minimizing quality risks, ensuring our products consistently achieve the pinnacle of standards, embodying our unwavering commitment to excellence throughout the entire production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, guaranteeing the delivery of nothing short of perfection.
Before any product departs from our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation includes dimensions, visual appeal, performance, and customer-specific requirements. This scrupulous inspection underscores our steadfast dedication to quality, ensuring every delivered part meets our exacting standards, providing our esteemed customers with products of the utmost caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, though our origins trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon in the refined domain of high-precision component machining. Our illustrious journey has been driven by an unyielding passion for the delicate art and exacting science of engineering, spanning more than two decades of relentless innovation and extraordinary precision. We have masterfully etched our name as pioneers in precision engineering, consistently advancing technical research and setting groundbreaking standards in the industry, continuously surpassing expectations in both innovation and unparalleled quality. We have diligently cultivated an exceptional level of technical prowess, positioning ourselves as market leaders with an esteemed reputation for unmatched excellence. Our expertise in precision medical machining services is second to none, consistently achieving the strictest tolerances and delivering flawless surface finishes. This dedication affirms our position as the preferred choice in the medical sector. Our precision and unwavering reliability have earned us enduring trust and regard, making us the foremost name for superior machining solutions.
With four strategically positioned production facilities, in the vibrant and bustling hubs of Shenzhen and Guiyang, and supported by an impressive team of over 400 highly qualified specialists, Donghui has masterfully crafted a comprehensive, vertically integrated industry chain. This chain seamlessly connects cutting-edge research and development, superior production, and impeccable 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 exquisitely designed to handle 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)