Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we proudly uphold the highest standards of excellence. Our unwavering dedication to both the art and science of precision manufacturing ensures we deliver nothing short of perfection. Our commitment to quality craftsmanship and technological prowess sets us apart, ensuring unmatched results in every component we create. Our unparalleled expertise leads the way in the realm of precision engineering. We navigate the prestigious field of superior component manufacturing with remarkable skill and refined finesse, ensuring excellence at every turn. As pioneers of innovation, we set the benchmark in designing and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions are seamlessly integrated across a broad spectrum of industries, satisfying diverse demands in numerous applications such as:
- Medical and Biotech: Providing impeccably engineered, ultra-high-precision components alongside revolutionary solutions, tailored for the forefront of advanced medical technologies.
- Semiconductors: Elevating chip fabrication and associated equipment with indispensable, critical components that drive unparalleled progress and enhanced efficiency.
- New Energy: Playing an essential role in accelerating the innovative and sustainable development of next-generation energy equipment, shaping the future of energy solutions.
- Automotive: Delivering essential components that spearhead innovation within the automotive industry, advancing the evolution of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components exemplify the pinnacle of excellence. Serving key sectors such as medical, automation, semiconductor, and automotive industries, we provide unmatched precision and superior quality that stand the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by a formidable assembly of over 300 of the industry's most advanced and sophisticated machinery units. This expansive and diverse repertoire of state-of-the-art equipment ensures we consistently maintain our position at the forefront of innovation and adaptability. By persistently delivering groundbreaking solutions, we establish the industry standard for excellence, leading the charge in achieving unparalleled precision and superior quality. These Top-Tier Branded Our cutting-edge machinery units form the backbone of our precision-focused manufacturing process, providing the essential infrastructure that supports our rigorous production standards. With these state-of-the-art tools, we refine and perfect our manufacturing strategies to consistently deliver exceptional results. Leveraging our high-caliber machines, we adeptly execute complex and demanding machining requirements across an extensive array of industries, achieving an unmatched level of precision and efficiency. Our expansive capabilities ensure unwavering adherence to the highest quality benchmarks, while delivering personalized customization meticulously crafted to not only meet but exceed the distinct needs of our esteemed clients, far surpassing their loftiest expectations.
- With an illustrious 20-year legacy, we draw upon a vast wellspring of manufacturing experience flawlessly integrated with comprehensive technical expertise and process acumen. This harmonious blend assures not just superior quality but also trailblazing innovation. We empower ourselves to consistently deliver extraordinary products that not only exceed expectations but also set new standards of excellence in 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
Meticulous and Rigorous Incoming Material Inspection: At the cutting edge of innovation and precision, we redefine industry benchmarks by utilizing unmatched methodologies. We are shaping the future of quality standards, setting revolutionary precedents with every endeavor.
Every raw material that enters our state-of-the-art warehouse is subjected to an exhaustive evaluation, establishing a new paradigm in quality assurance. Our comprehensive approach includes meticulous chemical composition analysis alongside precise physical property assessments. We mandate our suppliers furnish a Certificate of Origin and a meticulously verified Declaration of Conformity, ensuring only premium-grade materials are integrated into our sophisticated medical machining services. This rigorous validation process fortifies the integrity and purity of materials, aligning seamlessly with our steadfast dedication to superior quality.
Unyielding In-Process Quality Control: Our relentless vigilance, paired with unmatched attention to detail, fuels our quest for perfection with an unwavering focus on excellence.
Throughout the elaborate machining journey, each component undergoes meticulous scrutiny to confirm that dimensions and tolerances align flawlessly with our stringent specifications. This continuous inspection protocol is crucial for proactively detecting and intercepting potential defects, thereby preventing the progression of any non-conforming parts. With this comprehensive strategy, we significantly curtail the risk of producing substandard goods, ensuring that exceptional quality is consistently maintained throughout every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive strategy serves as the foundation of impeccable excellence and unrivaled precision.
Our First Article Inspection (FAI) process is the bedrock of our quality strategy, adeptly pinpointing and resolving potential production challenges from the outset. This proactive methodology ensures potential issues are addressed before escalating into large-scale production obstacles. This all-encompassing FAI process is critical in minimizing quality risks, ensuring our products consistently achieve the zenith of standards, epitomizing our unwavering commitment to excellence at each production phase.
Thorough and Detailed Comprehensive Final Inspection: The ultimate guardian of unsurpassed quality and precision.
Before any product departs from our facility, it is subjected to an exhaustive and comprehensive final inspection. This rigorous assessment spans dimensions, visual aesthetics, performance, and customer-specific criteria. This meticulous inspection embodies our unwavering dedication to quality, certifying that every part delivered aligns with our exacting standards, thus assuring our esteemed customers of the highest quality products.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, with our origins reaching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a distinguished leader in the intricate world of high-precision component machining. Our esteemed journey, fueled by a deep-seated passion for the art and science of engineering, spans over two decades of relentless innovation and precision. We have expertly carved our niche as pioneers in precision engineering, consistently pushing the boundaries of technical research and setting unprecedented industry standards. We have cultivated an unparalleled level of technical expertise, setting ourselves apart as market leaders with an esteemed reputation for outstanding excellence. Our unmatched proficiency in precision medical machining services consistently adheres to the most stringent tolerances, delivering flawless surface finishes. This solidifies our position as the leading choice in the medical sector, where our precision and reliability continue to garner unwavering trust and admiration.
With four strategically positioned production bases, in the vibrant and thriving centers of Shenzhen and Guiyang, supported by an inspiring team of over 400 highly skilled employees, Donghui has meticulously developed a comprehensive, vertically integrated industry chain that seamlessly connects research and development, top-tier production, and flawless delivery. This ensures we meet and exceed the diverse needs of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to tackle the most complex and challenging machining tasks, reinforcing our prestigious 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)