Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our relentless pursuit of perfection is fueled by an unwavering passion to excel in the intricate science and refined craftsmanship of manufacturing expertise. We are committed to surpassing the highest standards of quality and innovation. Our expertise is a beacon of precision, guiding us through the exalted realm of elite component manufacturing with unparalleled skill and dedication. As trailblazers of innovation, we set the standard in designing and producing groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly blend across a wide array of industries, meeting diverse needs in numerous applications, including:
- Medical and Biotech: Delivering expertly engineered, ultra-precision components and visionary solutions crafted for the future of medical devices.
- Semiconductors: Enhancing chip production and related equipment with vital components that are integral and indispensable.
- New Energy: Pioneering the innovative and sustainable development of cutting-edge energy equipment.
- Automotive: Supplying pivotal components that propel innovation within the automotive sector, fueling the progress of smart and electric vehicles.
Main Products
- Meticulously crafted, non-standard customized components that serve crucial sectors such as medical, automation, semiconductor, and automotive industries with unmatched excellence and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations boast an unparalleled fleet of over 300 of the industry's most sophisticated machinery units, ensuring we possess an extensive and diverse catalog of equipment categories. This expansive collection empowers us to remain at the forefront of innovation and adaptability, offering cutting-edge solutions. These top-tier branded machinery units form the backbone of our precision-centric manufacturing, allowing us to expertly meet the intricate and demanding machining requirements across a broad range of industries with exceptional precision and efficiency. Our comprehensive capabilities ensure adherence to the highest quality standards and offer bespoke customization, meticulously tailored to the unique needs of our esteemed clients.
- With a prestigious 20-year legacy, we harness a wealth of manufacturing experience, seamlessly integrated with substantial technical expertise and process strengths, guaranteeing superior quality and ground-breaking innovation. This enduring expertise enables us to consistently deliver extraordinary products that surpass expectations and set new benchmarks in the industry.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Extraordinary Precision in Incoming Material Inspection: Elevating Industry Benchmarks
Within the secure confines of our warehouse, each piece of raw material undergoes a relentless evaluation process, establishing an unmatched standard in quality assurance. This meticulously detailed procedure involves an exhaustive analysis of chemical compositions and a thorough examination of all physical properties. Our steadfast dedication to excellence mandates that each supplier provides both a Certificate of Origin and a stamped Declaration of Conformity, ensuring that only the finest materials are used in our high-precision medical machining services. These stringent credentials guarantee the integrity and purity of our materials, consistently upholding our rigorous standards of quality.
In-Process Quality Control: Relentlessly Pursuing Perfection
Throughout the intricate and precise machining process, each component is meticulously scrutinized to ensure its dimensions and tolerances perfectly align with our rigorous specifications. This ongoing inspection protocol proactively intercepts and eliminates potential defects, efficiently preventing any non-conforming parts from proceeding further in the process. Through this vigilant and thorough approach, we significantly reduce the risk of producing substandard goods, ensuring that superior quality is maintained at every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Unrivaled Excellence
Our First Article Inspection (FAI) is the cornerstone of our strategic quality framework, expertly identifying and resolving potential production challenges from the outset. This proactive methodology ensures that any issues are promptly addressed before they can escalate into mass production concerns. This exhaustive FAI process is pivotal in minimizing quality risks, consistently enabling our products to attain the highest standards and reflecting our unwavering commitment to excellence throughout the entire production cycle.
Meticulous and Exhaustive Final Inspection: The Ultimate Safeguard of Quality
Before any product departs from our facility, it is subjected to an exhaustive final inspection process. This rigorous evaluation covers dimensions, visual appearance, performance, and any customer-specific requirements. This comprehensive inspection underscores our relentless dedication to quality, ensuring every part dispatched meets our stringent standards, delivering only the highest caliber products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Established in the dynamic and transformative year of 2009, while tracing its rich heritage back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. proudly shines as a luminary of precision and innovation in the realm of high-precision component machining. Our illustrious journey, driven by an unyielding passion and unwavering commitment to the art and science of engineering, has expanded across more than two decades of remarkable achievements. We have passionately established ourselves as pioneering leaders in precision engineering, relentlessly advancing cutting-edge technical research, and setting the industry gold standard for unparalleled excellence. We boast an unparalleled depth of technical expertise, distinguishing ourselves as the undisputed market leaders with a renowned reputation for unwavering excellence. Our exceptional mastery in precision medical machining services consistently surpasses the most stringent tolerances, delivering impeccable surface finishes that solidify our standing as the foremost choice in the medical sector. Here, our precision and reliability earn us widespread trust and admiration as we continuously push the boundaries of what is possible.
With four strategically located production bases, nestled in the dynamic and innovative centers of Shenzhen and Guiyang, and empowered by an inspiring workforce exceeding 400 highly skilled and dedicated employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless chain intricately intertwines research and development, state-of-the-art production, and efficient delivery, ensuring we meet and exceed the diverse needs of our clients with remarkable efficiency and unmatched quality. Our cutting-edge facilities are fully equipped to manage the most complex and challenging machining tasks, reinforcing our prestigious reputation for pioneering excellence and forward-thinking 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)