Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we passionately perfect the craft of precision manufacturing. Where timeless artistry converges with cutting-edge innovation, we usher in a new epoch of unmatched excellence. Our relentless dedication to perfection ensures that every creation is a masterpiece of impeccable craftsmanship. With an unwavering commitment to quality and the latest advancements in technology, we distinguish ourselves by delivering extraordinary, intricately crafted components that epitomize the zenith of precision. Armed with unparalleled expertise in precision engineering, we define the gold standard for component excellence. Our exceptional adaptability and refined finesse ensure superior quality across all facets of our operations, solidifying our reputation as trailblazing industry leaders. As avant-garde innovators, we redefine the standards in designing and delivering revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate into diverse industries, expertly tackling the unique challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions spearhead advanced medical technologies, establishing unparalleled standards of excellence in the field.
- SemiconductorsBy supplying crucial, high-performance components, we empower chip fabrication and related equipment, driving significant progress and enhancing efficiency within the semiconductor industry.
- New EnergyWe are pivotal contributors to the innovative and sustainable advancement of next-generation energy equipment, playing a vital role in shaping the future landscape of energy solutions.
- AutomotiveBy providing indispensable components, we lead the charge in innovation within the automotive industry. Our contributions drive the evolution of intelligent and electric vehicles, defining the future of mobility.
Main Products
- Our expertly crafted, non-standard customized components exemplify excellence. Serving critical sectors including medical, automation, semiconductor, and automotive industries, we offer unparalleled precision and superior quality that endures over time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are propelled by an extraordinary fleet of over 300 state-of-the-art machinery units. This extensive, cutting-edge arsenal ensures our dominance in both innovation and versatility. By perpetually delivering pioneering solutions, we elevate the industry benchmark for excellence, perpetually striving towards unparalleled precision and extraordinary quality. These Top-Tier Branded Our trailblazing machinery units serve as the cornerstone of our precision-centric manufacturing process, establishing the essential framework that sustains our steadfast production standards. Utilizing these avant-garde tools, we constantly refine and elevate our manufacturing techniques to consistently achieve remarkable results. Armed with our high-caliber machines, we masterfully execute intricate and strenuous machining operations across various industries, achieving unmatched precision and efficiency. Our extensive capabilities guarantee stringent adherence to the highest quality benchmarks while offering tailored customization that not only fulfills but consistently surpasses the unique demands of our valued clients, significantly exceeding their highest expectations.
- Celebrating a distinguished 20-year legacy, we leverage an abundance of manufacturing experience intricately intertwined with profound technical knowledge and process expertise. This harmonious blend assures not only superior quality but also pioneering innovation. We empower ourselves to continually deliver extraordinary products that surpass expectations and establish new industry standards of distinction.
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: Step into the realm where innovation and precision converge. Here, we don't merely meet the towering expectations of our industry; we soar beyond them with unmatched methodologies. We proudly establish the stage for superior quality benchmarks, revolutionizing standards that echo throughout every aspect of our production journey.
Transforming Material Integrity: Every raw material entering our cutting-edge warehouse is subject to exhaustive evaluation, setting the gold standard in quality assurance. Our holistic approach includes detailed chemical analysis and rigorous physical assessments. With a Certificate of Origin and a verified Declaration of Conformity required from suppliers, we guarantee that only the finest materials enhance our state-of-the-art medical machining services. This meticulously validated process reinforces material integrity and purity, perfectly aligning with our steadfast commitment to superior quality.
Uncompromising In-Process Quality Control: Driven by relentless vigilance, our unwavering attention to detail ensures that our pursuit of perfection remains steadfast. This uncompromising dedication guarantees our standards of excellence are consistently met and surpassed.
Intricate Machining Excellence: Throughout the machining process, each component undergoes meticulous scrutiny to ensure dimensions and tolerances align impeccably with our stringent specifications. This thorough inspection protocol is vital for identifying and intercepting potential defects, preventing non-conforming parts from advancing. Our vigilant strategy significantly reduces the risk of substandard production, ensuring exceptional quality is maintained at every production phase.
Anticipatory and Comprehensive First Article Inspection (FAI): The bedrock of immaculate excellence, our preventative framework embodies unparalleled precision and thoroughness.
Foundation of Quality: Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, adeptly identifying and resolving potential challenges from the outset. This proactive approach ensures issues are addressed before they escalate, safeguarding against production impediments. Our thorough FAI process is indispensable in minimizing quality risks, ensuring our products consistently achieve the pinnacle of standards, reflecting our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: As the ultimate guardian of exceptional quality and precision, we ensure the delivery of perfection.
Final Perfection: Before any product exits our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation covers dimensions, visual appeal, performance, and customer-specific requirements. This scrupulous inspection underscores our unwavering dedication to quality, ensuring every part delivered 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. was established as a luminary in the refined domain of high-precision component machining. Our prestigious journey has been fueled by a relentless passion for the nuanced art and exacting science of engineering, spanning more than two decades of unyielding innovation and extraordinary precision. We have brilliantly etched our name as pioneers in precision engineering, perpetually advancing technical research and establishing groundbreaking standards in the industry, continually surpassing expectations in both innovation and unparalleled quality. We have meticulously honed an extraordinary level of technical prowess, establishing ourselves as market leaders with a distinguished reputation for unmatched excellence. Our expertise in precision medical machining services is unrivaled, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This unwavering commitment solidifies our position as the preferred choice in the medical sector. Our precision and steadfast reliability have garnered us enduring trust and esteem, making us the premier name for exceptional machining solutions.
With four strategically located production facilities, in the vibrant and bustling centers of Shenzhen and Guiyang, supported by an impressive team of over 400 highly skilled specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This seamlessly connects cutting-edge research and development, superior production, and flawless delivery. Such operations ensure we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are expertly designed to tackle even the most intricate and challenging 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)