Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to perfecting the craft of precision manufacturing. We operate at the crossroads of age-old craftsmanship and state-of-the-art innovation, ushering in a new era of unmatched excellence. Our relentless pursuit of perfection ensures that each creation is a masterpiece of impeccable artistry. By leveraging the latest technologies and maintaining our unwavering standards of quality, we set ourselves apart, delivering extraordinary, intricately engineered components that truly represent the pinnacle of precision and artistry. With unparalleled expertise in precision engineering, we set the gold standard for component excellence. Our remarkable agility and refined finesse guarantee unmatched quality across every facet of our operations, establishing our position as pioneers and industry leaders. As innovators and trailblazers, we redefine benchmarks in designing and delivering groundbreaking intelligent automation equipment. Our innovative solutions seamlessly integrate into diverse industries, skillfully addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions lead the forefront of advanced medical technologies, setting new and unprecedented standards of excellence in the field.
- SemiconductorsWith our critical and essential components, we are the driving force behind advancements in chip fabrication and related equipment, significantly enhancing efficiency and innovation within the semiconductor industry.
- New EnergyWe play a pivotal role in the innovative and sustainable evolution of next-generation energy equipment, crucially shaping the future landscape of energy solutions.
- AutomotiveBy providing indispensable 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 and are designed to serve vital 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 are powered by a remarkable fleet of over 300 of the industry's most sophisticated and cutting-edge machinery units. This expansive and pioneering assembly propels us to the pinnacle of innovation, ensuring our leadership in both adaptability and precision engineering. By continuously delivering groundbreaking solutions, we establish the industry benchmark for excellence, perpetually striving for unparalleled precision and exceptional quality that redefines standards. These Top-Tier Branded Our innovative machinery units form the cornerstone of our precision-focused manufacturing operations, establishing the essential infrastructure that maintains our unwavering production standards. With these cutting-edge tools, we consistently refine and enhance our manufacturing processes, achieving superior results that are the hallmark of our commitment to excellence. Equipped with our top-tier machines, we masterfully execute complex and demanding machining tasks across diverse industries, achieving unrivaled precision and efficiency. Our extensive capabilities ensure steadfast adherence to the most stringent quality standards while offering bespoke customization that not only meets but consistently exceeds the unique expectations of our esteemed clients, surpassing their highest aspirations.
- Celebrating a distinguished 20-year legacy, we draw from a rich reservoir of manufacturing expertise intricately intertwined with deep technical knowledge and process mastery. This seamless synergy not only ensures superior quality but also fosters revolutionary innovation. We are empowered to consistently deliver extraordinary products that surpass expectations and redefine the standards of excellence within the industry.
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 of cutting-edge innovation, where precision is paramount, we redefine industry standards with unrivaled methodologies. At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we proudly lay the cornerstone for global quality excellence, setting revolutionary standards that shape every facet of our production journey. Our steadfast dedication to superiority is epitomized in each painstakingly crafted step, ensuring our materials embody the sophistication of the advanced methods we employ.
Every raw material entering our state-of-the-art warehouse is subjected to rigorous scrutiny, establishing new benchmarks in quality assurance. Our holistic methodology encompasses meticulous chemical composition analysis and comprehensive evaluations of physical properties. Suppliers are required to provide a Certificate of Origin, accompanied by a verified Declaration of Conformity, ensuring that only top-tier materials are employed in our pioneering medical machining services. This stringent validation process reinforces material integrity, perfectly resonating with our unwavering commitment to unparalleled quality.
Uncompromising In-Process Quality Control: With an unyielding focus on meticulous detail and relentless vigilance, we pursue perfection with steadfast dedication. This rigorous process ensures our excellence standard is not only consistently met but often exceeded throughout every production phase.
Within the intricate machining process, each component is rigorously scrutinized to ensure dimensions and tolerances are precisely in line with our exacting specifications. This proactive inspection protocol is crucial for identifying and intercepting potential defects, effectively preventing any non-conforming parts from progressing. Through this diligent approach, we significantly mitigate the risk of producing substandard goods, consistently upholding exceptional quality at every production stage.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of immaculate excellence, exemplifying unmatched precision and thoroughness.
The First Article Inspection (FAI) process is integral to our quality strategy, adeptly identifying and addressing potential production challenges from the outset. This proactive approach ensures that issues are resolved before they evolve into production obstacles. Our comprehensive FAI process is vital in minimizing quality risks, guaranteeing our products consistently achieve the pinnacle of standards, reflecting our unwavering commitment to excellence across the entire production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate safeguard of exceptional quality and precision, ensuring the delivery of unparalleled perfection.
Before any product leaves our facility, it undergoes an exhaustive and detailed comprehensive final inspection. This rigorous assessment includes evaluations of dimensions, visual appeal, performance, and adherence to customer-specific requirements. This thorough inspection exemplifies our unwavering dedication to quality, ensuring every delivered part meets our exacting standards, offering our esteemed customers 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 innovation in the refined realm of high-precision component machining. Our illustrious journey has been driven by an unwavering passion for the nuanced artistry and exacting science of engineering, spanning more than two decades of relentless innovation and extraordinary precision. We have indelibly etched our name as pioneers in precision engineering, ceaselessly pushing the boundaries of technical research and setting groundbreaking industry standards, consistently surpassing expectations in both innovation and unparalleled quality. We have meticulously cultivated an exceptional level of technical prowess, establishing ourselves as market leaders with an esteemed reputation for unparalleled excellence. Our mastery in precision medical machining services is unmatched, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This unwavering dedication solidifies our status as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us enduring trust and regard, making us the foremost authority for superior machining solutions.
With four strategically positioned production facilities, in the dynamic and bustling centers of Shenzhen and Guiyang, and supported by a remarkable team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This chain effortlessly connects 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 outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are exquisitely designed to handle the most complex and demanding machining tasks, reinforcing our esteemed reputation for excellence and trailblazing 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)