Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our passion for precision manufacturing is unmatched. We harmoniously blend time-honored craftsmanship with the forefront of innovation, ushering in a new age of unrivaled excellence. Our unwavering dedication to perfection ensures that each creation is a masterpiece of craftsmanship. By leveraging cutting-edge technology and adhering strictly to our high standards, we set ourselves apart, delivering extraordinary, intricately engineered components that are the ultimate expression of precision and artistry. With unparalleled expertise in precision engineering, we define the gold standard for component excellence. Our remarkable agility and sophisticated finesse guarantee exceptional quality in every aspect of our operations, reinforcing our status as pioneers and leaders in the industry. As pioneers in innovation, we are reshaping the benchmarks for designing and delivering groundbreaking intelligent automation equipment. Our revolutionary solutions seamlessly integrate across diverse industries, expertly addressing the unique challenges of multiple applications, including:
- Medical and BiotechOur meticulously engineered, ultra-precise components and transformative solutions are at the forefront of advanced medical technologies, setting new, unprecedented standards of excellence in the field.
- SemiconductorsProviding critical, essential components, we propel advancements in chip fabrication and related equipment, greatly enhancing efficiency and innovation within the semiconductor industry.
- New EnergyWe are crucial in the innovative and sustainable evolution of next-generation energy equipment, significantly shaping the future landscape of energy solutions.
- AutomotiveAs providers of indispensable components, we lead innovation in the automotive industry. Our contributions advance the development of intelligent and electric vehicles, actively shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Serving critical sectors like medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and superior quality that stands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations boast an impressive array of over 300 ultra-modern machinery units, each contributing to our status as industry innovators. This sophisticated collection is a testament to our commitment to pioneering excellence and adaptability. By delivering trailblazing solutions, we not only set industry benchmarks but continuously aim for superior precision and quality that is second to none. These Top-Tier Branded Our trailblazing machinery units are the cornerstone of our precision-driven manufacturing paradigm. These state-of-the-art tools uphold our steadfast production standards, enabling us to continuously refine our manufacturing processes for exemplary results. We harness the power of innovation to ensure that every product meets the highest echelons of precision and quality. With our top-tier machines, we adeptly tackle intricate machining operations across various industries, achieving unmatched precision and productivity. Our expansive capabilities ensure compliance with the strictest quality metrics while offering tailored customization that not only meets but often exceeds the unique demands of our valued clientele, consistently surpassing their highest aspirations.
- Celebrating a distinguished 20-year legacy, we leverage extensive manufacturing mastery combined with profound technical knowledge and process acumen. This fusion is the catalyst for exceptional quality and cutting-edge innovation, empowering us to continuously deliver remarkable products that exceed expectations and redefine industry paradigms 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 dynamic sphere where innovation converges with precision, we do more than just meet expectations; we redefine them with unrivaled techniques. We proudly lay the cornerstone for unparalleled quality, setting transformative benchmarks that echo throughout each phase of our production journey.
Every raw material entering our advanced warehouse is subjected to a stringent evaluation, setting the gold standard in quality assurance. Our thorough approach encompasses detailed chemical composition analysis and rigorous physical property assessments. Suppliers must provide a Certificate of Origin accompanied by a verified Declaration of Conformity, ensuring only the finest materials are harnessed in our state-of-the-art medical machining services. This meticulous validation process fortifies material integrity, perfectly aligning with our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: With an unwavering commitment to meticulous detail, we pursue perfection with relentless vigilance. This thorough process ensures our standards of excellence are consistently met and frequently surpassed.
Throughout the detailed machining process, each component undergoes comprehensive scrutiny to ensure precise alignment of dimensions and tolerances with our demanding specifications. This proactive inspection protocol is crucial in identifying and intercepting potential defects, preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly mitigate the risk of flawed products, consistently ensuring exceptional quality at every production phase.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the bedrock of immaculate excellence, showcasing unmatched precision and thoroughness.
The First Article Inspection (FAI) process is the linchpin of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach ensures issues are addressed before they escalate into production hurdles. Our comprehensive FAI process is vital in minimizing quality risks, ensuring our products consistently reach the highest standards, and reflecting our steadfast commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of extraordinary 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 includes assessments of dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every part we deliver meets our exacting standards and provides our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, although our illustrious origins trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon of innovation in the esteemed arena of high-precision component machining. Our prestigious journey has been propelled by an unyielding passion for the intricacies of the art and the rigorous science that define engineering. With over two decades of relentless innovation and extraordinary precision, we have etched our legacy as trailblazers in the precision engineering realm. We ceaselessly advance technical research and establish groundbreaking industry standards, consistently surpassing expectations with our trailblazing innovation and exceptional quality. We have meticulously honed an extraordinary level of technical expertise, elevating ourselves as market leaders with a prestigious reputation for unrivaled excellence. Our mastery in precision medical machining services is unparalleled, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This unwavering dedication solidifies our position as the premier choice in the medical sector. Our precision and steadfast reliability have garnered enduring trust and high regard, solidifying our status as the foremost name in superior machining solutions.
With four strategically positioned production facilities, located in the dynamic and bustling centers of Shenzhen and Guiyang, and supported by an extraordinary team of over 400 exceptionally skilled specialists, Donghui has meticulously developed a comprehensive, vertically integrated industry chain. This seamless chain unites cutting-edge research and development, superior production, and impeccable delivery. Our operations guarantee that we consistently meet and exceed the varied demands of our clients with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are meticulously crafted to undertake the most intricate and demanding machining tasks, enhancing 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)