Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we don't just meet industry standards; we exceed them with a passionate commitment to the art and science of precision manufacturing, elevating the craft to its finest form. Our unparalleled expertise in high-end component fabrication stands as a beacon of excellence, illuminating the pathway to achieving the utmost meticulous precision. We are at the forefront of innovation, spearheading the creation and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions are tailored to meet the diverse demands of numerous industries, effectively addressing a wide array of applications, including:
- Medical and Biotech: Delivering impeccably crafted high-precision components and groundbreaking solutions for cutting-edge medical devices, ensuring the highest echelon of quality and reliability.
- Semiconductors: Catalyzing the chip manufacturing process by providing essential core components that are fundamental to the industry's advancement and success.
- New Energy: Driving the dynamic and sustainable development of innovative energy equipment, promoting eco-conscious technological advancement.
- Automotive: Supplying crucial components that propel innovation in the automotive industry, supporting the transformation towards smart and electric vehicles with strategic precision.
Main Products
- We are specialists in non-standard customized components, primarily catering to the medical, automation, semiconductor, and automotive sectors, ensuring unparalleled precision and superior quality in every product delivered.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. Our capability empowers us to expertly fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency.
- With a rich history spanning two decades, we harness vast production experience combined with substantial technical and process prowess, ensuring exceptional quality and forward-thinking innovation. This commitment sets us apart as pioneers in precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Examination of Incoming Materials
Every raw material entering our state-of-the-art facility undergoes a remarkably comprehensive and exhaustive examination process. Our meticulous analyses not only encompass a detailed evaluation of the chemical composition but also include an in-depth inspection of the physical properties. We are steadfast in our commitment to quality, requiring every supplier to furnish us with a Certificate of Origin and a formally stamped Declaration of Conformity. This rigorous vetting process ensures that only the finest materials are chosen for our high-precision medical machining services. Our thorough authentication protocols confirm that these materials uphold the highest standards of integrity and purity, seamlessly aligning with our unwavering dedication to excellence.
Rigorous In-Process Quality Assurance Measures
Within our intricate and precise machining operations, each component is subjected to meticulous scrutiny to ensure its dimensions and tolerances not only meet but surpass our rigorous specifications. Our diligent and continuous inspection protocol is strategically crafted to intercept potential defects early in the process, averting any non-conforming parts from advancing to subsequent stages. This vigilant methodology is pivotal in reducing the risk of substandard goods, thereby guaranteeing superior quality at every phase of production and maintaining excellence throughout the entire process.
Strategic and Proactive First Article Inspection (FAI)
Our strategic First Article Inspection (FAI) process serves as a cornerstone strategy crucial for the early identification and resolution of potential production challenges. This proactive and preventative approach is instrumental in averting issues from cascading into mass production. The comprehensive and precise nature of our FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the zenith of standards. This unwavering dedication to excellence permeates every facet of our production cycle, ensuring we consistently meet and exceed the highest benchmarks of quality.
Meticulous and Comprehensive Final Inspection
Before any product departs from our facility, it is subjected to a meticulous and thorough final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements in great detail. Our comprehensive inspection protocol stands as a testament to our relentless dedication to quality, ensuring that every part leaving our premises meets our exacting standards. We are resolute in delivering only the highest quality products to our valued customers, thereby cementing our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a bastion of expertise in high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our 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)