Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to mastering the intricate art of precision manufacturing. Where timeless craftsmanship intersects with cutting-edge innovation, we usher in a new era of unparalleled excellence. Our relentless pursuit of perfection ensures that each creation is a masterpiece of impeccable artistry. Through our steadfast dedication to quality and the latest technology, we distinguish ourselves, delivering extraordinary, intricately crafted components that epitomize the pinnacle of precision. With unmatched proficiency in precision engineering, we define the gold standard for component excellence. Our exceptional agility and refined expertise guarantee superior quality across every facet of our operations, affirming our position as industry pioneers and leaders. As trailblazers of innovation, we elevate the standard in designing and delivering revolutionary intelligent automation equipment. Our avant-garde solutions seamlessly integrate into a vast array of industries, adeptly addressing the unique challenges of diverse applications, which include:
- Medical and BiotechOur meticulously crafted, ultra-high-precision components and transformative solutions lead the forefront of advanced medical technologies, setting new benchmarks of excellence within the field.
- SemiconductorsBy providing essential, critical components, we propel chip fabrication and related equipment, driving extraordinary advancements and enhancing efficiency in the semiconductor industry.
- New EnergyWe play a pivotal role in the innovative and sustainable evolution of next-generation energy equipment, contributing significantly to shaping the future landscape of energy solutions.
- AutomotiveSupplying vital components, we lead innovation within the automotive industry. Our contributions advance the development of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Serving critical sectors such as medical, automation, semiconductor, and automotive industries, we offer unparalleled precision and superior quality that endures the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are propelled by a formidable fleet of over 300 of the industry's most sophisticated and advanced machinery units. This extensive and cutting-edge arsenal guarantees our dominance in innovation and adaptability. By meticulously delivering groundbreaking solutions, we position ourselves as the industry benchmark for excellence, relentlessly striving towards unparalleled precision and exemplary quality. These Top-Tier Branded Our pioneering machinery units are the cornerstone of our precision-focused manufacturing process, forming the essential infrastructure that upholds our unwavering production standards. Through these state-of-the-art tools, we continuously refine and advance our manufacturing techniques to consistently achieve exceptional results with unmatched reliability. With our high-caliber machines, we execute intricate and demanding machining tasks across diverse industries with remarkable precision and efficiency. Our extensive capabilities ensure rigid conformity to the highest quality standards while offering bespoke customization that not only fulfills but consistently surpasses the unique needs of our valued clients, vastly exceeding their highest expectations.
- Celebrating a distinguished 20-year legacy, we harness a wealth of manufacturing experience intricately woven with profound technical expertise and mastery of processes. This harmonious blend ensures not only outstanding quality but also revolutionary innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and set new, elevated 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 ingenuity harmonizes with precision, we not only meet the towering aspirations of our industry; we surpass them with unmatched methodologies. We proudly establish the stage for superior quality benchmarks, crafting revolutionary standards that resonate throughout our production journey.
Every raw material that enters our state-of-the-art warehouse is subjected to a thorough evaluation, setting the gold standard in quality assurance. Our comprehensive approach includes detailed chemical composition analyses and rigorous physical property assessments. Suppliers must present a Certificate of Origin with a verified Declaration of Conformity, ensuring that only the finest materials are selected for our advanced medical machining services. This meticulous validation process fortifies 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 pursue perfection with steadfast dedication and commitment, ensuring that our standards of excellence are consistently met and exceeded.
Throughout the intricate machining process, each component undergoes meticulous scrutiny to assure dimensions and tolerances align precisely with our stringent specifications. This ongoing inspection protocol is crucial for proactively identifying and intercepting potential defects, thus preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of producing substandard goods, consistently ensuring exceptional quality is upheld at every production phase.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of immaculate excellence, embodying unrivaled precision and thoroughness.
The First Article Inspection (FAI) process forms the bedrock of our quality strategy, adeptly identifying and resolving potential production challenges from the outset. This anticipatory approach ensures issues are addressed before they escalate into mass production impediments. Our thorough FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, embodying 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 perfection.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation encompasses 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, thereby 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 of excellence in the sophisticated realm of high-precision component machining. Our illustrious journey, ignited by an unwavering passion for the intricate art and science of engineering, spans over two decades of relentless innovation and extraordinary precision. We have magnificently carved our name as trailblazers in precision engineering, continuously propelling technical research and setting groundbreaking industry standards, unfailingly exceeding expectations with our innovation and peerless quality. We have meticulously honed an extraordinary level of technical expertise, establishing ourselves as market leaders with a distinguished reputation for unparalleled excellence. Our mastery in precision medical machining services is unrivaled, consistently achieving the most exacting tolerances and delivering flawless surface finishes. This unwavering commitment affirms our standing as the top choice in the medical sector. Our precision and steadfast reliability have earned us enduring trust and respect, securing our status as the premier name for superior machining solutions.
With four strategically positioned production facilities, nestled in the dynamic and vibrant centers of Shenzhen and Guiyang, and supported by an impressive team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This seamless chain links cutting-edge research and development, superior production, and perfect delivery. Our operations ensure we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are expertly designed to tackle the most complex and demanding machining challenges, 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)