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 Harnessing a powerhouse of over 300 of the industry's most advanced and innovative machinery, our operations are the epitome of modern manufacturing marvels. This expansive and versatile trove of state-of-the-art equipment empowers us to stay ahead in innovation and adaptability. By consistently delivering transformative solutions, we not only raise the bar for industry benchmarks but also pioneer the realms of precision and unmatched quality. These Top-Tier Branded machinery units form the essential backbone of our precision-driven production, fortifying the rigorous standards of our meticulous manufacturing process. Armed with our elite machinery, we deftly maneuver through complex and challenging machining demands across diverse industries with outstanding precision and efficacy. Our expansive capabilities assure unwavering commitment to the pinnacle of quality standards, while offering bespoke customization exquisitely tailored to fulfill and surpass the unique aspirations of our esteemed clients, exceeding their utmost expectations.
- Boasting a prestigious two-decade legacy, we draw from a wealth of manufacturing expertise seamlessly interwoven with profound technical knowledge and process mastery. This harmonious fusion ensures not only stellar quality but also trailblazing innovation, enabling us to continually deliver exceptional products that transcend expectations and set new benchmarks 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
Meticulous and Rigorous Incoming Material Inspection: As pioneers in exceeding industry benchmarks, we deploy unrivaled precision techniques, setting a gold standard.
Every raw material entering our state-of-the-art warehouse undergoes a stringent evaluation process, a transformative benchmark in industry quality assurance. Our comprehensive approach entails thorough chemical composition analysis and meticulous physical property assessment. Our dedication to excellence demands suppliers furnish a Certificate of Origin and a verified Declaration of Conformity, ensuring that only the highest-quality materials are used in our sophisticated medical machining services. This rigorous validation process upholds the integrity and purity of materials, seamlessly aligning with our unwavering dedication to superior quality.
Unyielding In-Process Quality Control: Our unwavering vigilance and meticulous attention to detail drive our pursuit of perfection.
During the intricate machining journey, every component is subject to scrupulous scrutiny, ensuring dimensions and tolerances precisely match our stringent specifications. This continuous inspection protocol is essential for proactively identifying and intercepting potential defects, preventing the progression of any non-conforming parts. Through this diligent strategy, we substantially mitigate the risk of producing subpar goods, ensuring exceptional quality is consistently sustained throughout each production phase.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework lays the cornerstone for impeccable excellence and unmatched precision.
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges from the outset. This proactive methodology ensures issues are contained before escalating into mass production hurdles. This all-encompassing FAI process is key in minimizing quality risks, ensuring our products consistently achieve the zenith of standards, embodying our firm commitment to excellence at every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate guardian of unrivaled quality and precision.
Before any product leaves our facility, it undergoes a comprehensive final inspection. This rigorous evaluation covers dimensions, visual appeal, performance, and customer-specific requirements. This exhaustive inspection exemplifies our unwavering commitment to quality, ensuring that every part delivered meets our stringent standards, thereby providing our esteemed customers with the finest 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 honed an extraordinary level of technical mastery, distinguishing ourselves as unrivaled market leaders with an esteemed reputation for outstanding excellence. Our unparalleled expertise in precision medical machining services consistently adheres to the most stringent tolerances, achieving impeccable surface finishes. This cements our position as the premier choice in the medical sector, where our precision and reliability continue to earn 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 state-of-the-art 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)