Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is more than just a duty; it's a passionate pursuit of the art and science of precision manufacturing, driven by an inspired dedication to excellence. Our unparalleled expertise shines as a beacon in the realm of high-end component fabrication, illuminating the path to achieving meticulous precision and perfection. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions cater to a vast array of industries, adeptly addressing diverse applications, including:
- Medical and Biotech Sector: Delivering meticulously engineered high-precision components and groundbreaking solutions for cutting-edge medical devices, upholding the highest quality standards of excellence.
- Semiconductors Industry: Empowering the chip production sector and its associated equipment by providing essential core components that are crucial to the industry's thriving success.
- New Energy Innovations: Actively involved in the dynamic and sustainable advancement of pioneering energy equipment, promoting eco-friendly technological evolution.
- Automotive Industry: Supplying vital components that drive innovation within the automotive sector, supporting the evolution and growth of smart and electric vehicles.
Core Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unparalleled precision and superior quality in every product.
Why choose us
Core Advantages
- A Fleet of Excellence: Discover the pinnacle of manufacturing prowess with our exceptional fleet of advanced machinery, each meticulously engineered to deliver unparalleled performance and precision. Our operations proudly showcase an extraordinary assortment of over 300 cutting-edge machines, representing the zenith of technological innovation and engineering excellence. Renowned for reliability and unmatched capabilities, our machinery fleet stands as a testament to our commitment to excellence and precision. Machines that redefine possibilities, empowering industries to achieve new heights of efficiency and effectiveness., enabling us to masterfully address a comprehensive spectrum of equipment categories. This unparalleled capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with a level of precision and efficiency that is truly unmatched.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This ensures not only exceptional quality but also innovative thinking, setting us apart as pioneering leaders in the realm of precision engineering.
State-of-the-Art Production Equipment: At the heart of our operations lies a suite of state-of-the-art production equipment, each piece expertly crafted for optimal performance and precision.
High-Precision Inspection Equipment: Our high-precision inspection equipment meticulously verifies every element of our products, guaranteeing excellence and consistency in every piece we manufacture.
Quality Ensurance
Exceptional Incoming Material Evaluation
Every raw material that enters our warehouse undergoes an exhaustive and meticulous examination process, unmatched in its thoroughness. Our precise analyses cover every nuance, from an in-depth evaluation of chemical compositions to a comprehensive inspection of physical properties. Upholding an unwavering commitment to supreme quality, we mandate that every supplier provides a Certificate of Origin along with a stamped Declaration of Conformity. This ensures only the highest-grade materials are chosen for our high-precision medical machining services. Our rigorous authentication process guarantees materials of the utmost integrity and purity, reflecting our steadfast dedication to excellence.
Comprehensive In-Process Quality Assurance
Throughout our intricate machining operations, each component is scrutinized with extreme precision to ensure that dimensions and tolerances not only meet but exceed our stringent specifications. Our detailed inspection protocol is strategically crafted to detect potential defects at the earliest stages, preventing any non-conforming parts from progressing further. This vigilant approach is instrumental in minimizing the risk of substandard outputs, ensuring unparalleled quality at every phase, and sustaining excellence throughout the production journey.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy, essential in identifying and resolving potential production challenges early on. This proactive methodology ensures problems are addressed well before they reach mass production. The comprehensive and precise nature of our FAI process is vital in mitigating quality risks, consistently elevating our products to the highest standards. Our unwavering dedication to excellence permeates every facet of the production cycle, ensuring we surpass the loftiest quality benchmarks.
Meticulous and Thorough Final Inspection
Before any product leaves our facility, it undergoes a meticulous and comprehensive final inspection. This rigorous process assesses dimensions, visual appearance, performance, and adheres to any customer-specific requirements. Our exhaustive inspection regimen is a testament to our relentless pursuit of quality, ensuring every part that leaves our facility aligns with our exacting standards. We are unwavering in delivering only the finest products to our esteemed customers, continually reinforcing our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established with dynamic fervor in 2009, tracing its roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a luminary in high-precision basic component machining. Committed to relentless innovation over two decades, we delve deeply into technical research, pioneering the field of precision engineering with unwavering focus and dedication. At Donghui, we have cultivated an exceptional breadth of technical expertise and garnered a market reputation that elevates us as industry leaders. Our precision medical machining services, renowned for achieving tight tolerances and flawless surface finishes, position us as the preferred choice within the exacting medical sector.
With an impressive array of resources, we operate four strategic production bases, situated in the vibrant epicenters of Shenzhen and Guiyang, bolstered by a dedicated team of over 400 highly skilled employees. Donghui has meticulously crafted a robust and vertically integrated industry chain, seamlessly blending research and development, production, and delivery. This ensures we consistently surpass the diverse expectations of our esteemed clientele with unmatched efficiency and superior quality. Our cutting-edge facilities are equipped to tackle the most intricate machining challenges, upholding our legacy of excellence and transformative innovation.
Captivating 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)