Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are more than committed; we are passionately driven by an indomitable desire to achieve excellence in the sophisticated artistry and intricate science of manufacturing mastery, setting us apart as industry leaders. Our unparalleled expertise shines brightly as a beacon of precision, expertly guiding our foray into the exclusive realm of elite component manufacturing, where quality and precision meet unmatched craftsmanship. Standing at the forefront of innovation, we set the industry benchmark with our groundbreaking intelligent automation equipment designs. Our state-of-the-art solutions seamlessly integrate across a myriad of industries, meeting diverse needs across a spectrum of applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and pioneering solutions that are expertly crafted for the next generation of medical devices, ensuring outstanding performance and reliability.
- Semiconductors: Revolutionizing chip production and associated equipment with indispensable core components that are critical to advancement and innovation in the industry.
- New Energy: Playing a pivotal role in the groundbreaking and sustainable development of state-of-the-art energy equipment, driving the future of energy solutions.
- Automotive: Supplying essential components that propel innovation within the automotive industry, significantly contributing to the advancement of smart and electric vehicles.
Main Products
- Our expertly crafted, non-standard customized components are designed to serve critical sectors such as medical, automation, semiconductor, and automotive industries with unparalleled excellence, ensuring top-tier performance and reliability.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an awe-inspiring fleet of over 300 of the industry's most sophisticated and advanced machinery units. This expansive and diverse catalog of equipment categories empowers us to stay at the cutting edge of innovation and adaptability, ensuring that we are always ready to meet the ever-evolving demands of the industry. These top-tier branded machinery units are the cornerstone of our precision-focused manufacturing process, allowing us to adeptly address the multifaceted and stringent machining requirements of a vast array of industries with unparalleled precision and efficiency. Our extensive capabilities ensure we meet the highest standards of quality, offering tailor-made customization that is meticulously crafted to meet the unique needs and aspirations of our esteemed clients.
- With a distinguished legacy of 20 years, we bring an abundant reservoir of manufacturing experience seamlessly intertwined with profound technical expertise and process strengths. This enduring proficiency empowers us to consistently deliver extraordinary products that not only meet but exceed expectations, setting new benchmarks and redefining industry standards.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: Surpassing Industry Standards
Every piece of raw material entering our highly-secured warehouse undergoes an exhaustive and stringent evaluation process, setting a new gold standard in quality assurance. This meticulous procedure involves an in-depth analysis of the chemical composition and a thorough examination of physical properties. Our unwavering commitment to excellence demands that each supplier provides a Certificate of Origin, along with a stamped Declaration of Conformity. This ensures that only the finest materials are chosen for our high-precision medical machining services. Such rigorous authentication guarantees the integrity and purity of materials, steadfastly adhering to our consistently high standards.
Rigorous In-Process Quality Control: Continuously Striving for Perfection
Throughout the intricate machining process, each component is meticulously scrutinized to verify that its dimensions and tolerances align with our stringent specifications. This diligent and continual inspection protocol proactively intercepts potential defects, preventing any non-conforming parts from advancing further. Through this relentless approach, we significantly reduce the risk of producing large quantities of substandard goods, thereby ensuring superior quality is maintained at every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) serves as the cornerstone of our strategy, adeptly identifying and resolving potential production challenges right from the onset. This proactive approach ensures that issues are prevented from escalating into mass production. This comprehensive and precise FAI process is critical for minimizing quality risks, ensuring that our products consistently achieve the highest standards, reflecting our unwavering dedication to excellence throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product leaves our facility, it undergoes a detailed and meticulous final inspection process. This rigorous evaluation covers dimensions, visual appearance, and performance, alongside any customer-specific requirements. This extensive inspection is a testament to our relentless commitment to quality, ensuring every part dispatched meets our exacting standards, delivering only the finest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon its foundational vision established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has passionately dedicated itself to mastering the art and science of high-precision component machining. With an unwavering commitment to groundbreaking innovation over the past two decades, we have emerged as trailblazers in the realm of precision engineering. Through relentless and pioneering technical research, we have established ourselves as industry pioneers, setting benchmarks of excellence and redefining the standards in the field. We have amassed an unrivaled wealth of technical expertise, positioning ourselves as market leaders renowned for a stellar reputation of unmatched excellence. Our unparalleled prowess in precision medical machining services consistently achieves the most exacting tolerances and impeccable surface finishes. This distinguished capability places us as the preferred choice in the medical sector, where our precision and reliability are trusted and valued by leading professionals and organizations alike.
With four strategically positioned production bases, nestled in the bustling centers of Shenzhen and Guiyang, and powered by an ambitious workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This seamlessly intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our clientele with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and demanding machining tasks, cementing our prestigious reputation for excellence and ceaseless 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)