Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are fueled by an unwavering fervor for the magnificent art and meticulous science of precision manufacturing, ensuring that our commitment surpasses mere duty. Our unparalleled expertise stands as a beacon in the sophisticated world of high-end component fabrication, casting light upon the path to exceptional precision and excellence. We are trailblazing the future with the development and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, effectively addressing various applications, including:
- Medical and Biotech: Delivering precisely engineered, high-precision components and groundbreaking solutions for modern medical devices, maintaining the highest standards of quality and innovation.
- Semiconductors: Enhancing chip production and its essential equipment by providing critical core components that are pivotal to the industry's thriving success.
- New Energy: Committed to the dynamic and sustainable progression of cutting-edge energy equipment, advancing eco-friendly technological development.
- Automotive: Supplying essential components that drive innovation within the automotive industry, supporting the evolution of smart and electric vehicles at the forefront.
Main Products
- We excel in crafting non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive sectors, ensuring unparalleled precision and supreme quality.
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. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Pioneering Excellence in Incoming Material Assessment
Each raw material that graces our warehouse undergoes a robust and meticulous examination, leaving no stone unturned. Our comprehensive analyses dive deep into assessing both the chemical composition and the physical attributes of the materials. By demanding a Certificate of Origin and a stamped Declaration of Conformity from every supplier, we ensure only top-tier materials are chosen for our precision-driven medical machining processes. Our rigorous authentication protocol stands as a fortress, safeguarding the integrity and purity of materials and perfectly echoing our unswerving commitment to quality par excellence.
Rigorous In-Process Quality Control Measures
Throughout our intricate machining operations, each component is diligently examined to ensure that its dimensions and tolerances not only meet but exceed our high standards. Our vigilant and continuous inspection protocol is expertly crafted to detect potential defects at the earliest stages, thus averting non-conforming parts from advancing further in the production process. This strategic vigilance is crucial in reducing the risk of substandard goods, ensuring unparalleled quality at every production phase, and maintaining excellence throughout our entire operational sequence.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) process is a cornerstone strategy, vital for pinpointing and resolving potential production challenges before they escalate. This forward-thinking approach effectively mitigates the risk of issues entering mass production. Our FAI process, marked by its thoroughness and precision, is a key player in reducing quality risks and ensuring our products consistently achieve the zenith of standards. This unwavering dedication to excellence permeates every facet of our production cycle, ensuring we not only meet but surpass the highest quality benchmarks.
Comprehensive and Detailed Final Inspection Protocol
Before any product departs our facility, it is subjected to an exhaustive and detailed final inspection. This rigorous evaluation scrutinizes dimensions, visual appearance, performance, and any specific customer stipulations. Our holistic inspection process is a testament to our relentless pursuit of quality, assuring that every part dispatched meets our stringent standards. We remain resolute in delivering nothing short of the highest quality products to our esteemed customers, perpetuating our legacy of excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, with foundational roots dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen as a beacon of expert precision in the realm of high-precision basic component machining. With a steadfast commitment to innovation spanning over two decades, we have ventured deep into technical research and positioned ourselves as trailblazers in precision engineering. We have accumulated vast technical expertise and earned an exemplary market reputation, distinguishing ourselves as industry leaders. Our prowess in precision medical machining services stands unmatched, consistently delivering incredibly tight tolerances and flawless surface finishes, making us the go-to choice in the medical sector.
With four strategically positioned production bases located in the lively centers of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled employees, Donghui has constructed a robust and vertically integrated industry chain. This comprehensive chain seamlessly unites research and development, production, and delivery, guaranteeing that we fulfill and surpass the varied demands of our customers with exceptional efficiency and unmatched quality. Our cutting-edge facilities are equipped to undertake the most complex and challenging machining tasks, preserving 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)