Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not merely fulfilling a duty but are inspired by a deep-seated passion for the art and science of precision manufacturing. Our commitment transcends ordinary standards, placing us at the forefront of innovation. Our unparalleled expertise leads the journey in high-end component fabrication, serving as a beacon of excellence and guiding the industry towards unparalleled precision and quality. As pioneers in the realm of intelligent automation equipment, we are crafting revolutionary solutions that cater to a vast array of industries. Our advanced technology meets a wide range of applications, offering the following industry-specific solutions:
- Medical and Biotech: We deliver exceptionally engineered, high-precision components and pioneering solutions for cutting-edge medical devices, maintaining the highest quality standards to ensure excellence.
- Semiconductors: We power the semiconductor industry by providing essential core components crucial to the success of chip production and related equipment, ensuring operational excellence.
- New Energy: Committed to sustainable growth, we drive the innovative advancement of energy equipment that supports eco-friendly technology and contributes to a greener future.
- Automotive: Our indispensable components are at the heart of innovation in the automotive world, supporting the progression of smart and electric vehicles towards a new era of mobility.
Main Products
- Our specialization in non-standard customized components serves the medical, automation, semiconductor, and automotive sectors with unmatched precision and exemplary quality, solidifying our role as industry leaders.
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 unparalleled capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency that only we can offer.
- With a rich history spanning two decades, we seamlessly leverage vast production experience combined with substantial technical and process prowess. We guarantee exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering. Our commitment to excellence is the cornerstone of our success.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every raw material that graces our warehouse embarks on a journey of exhaustive scrutiny. Our rigorous examination process is a testament to our meticulous attention to detail, incorporating an in-depth evaluation of the chemical composition alongside a comprehensive inspection of physical properties. We unwaveringly commit to excellence by mandating that each supplier accompanies their materials with both a Certificate of Origin and a stamped Declaration of Conformity. Only materials of the highest caliber are deemed worthy of incorporation into our precision-driven medical machining services. Our stringent validation processes are the cornerstone of our promise to quality, ensuring that materials consistently meet and often exceed the pinnacle of integrity and purity, harmoniously aligning with our unwavering commitment to quality.
Intensive In-Process Quality Assurance
Within the heart of our intricate machining operations, each component is subjected to rigorous scrutiny to ensure its dimensions and tolerances do not simply meet but magnificently exceed our demanding specifications. Our robust and continuous inspection protocol is meticulously engineered to detect and rectify any potential anomalies early in the process, effectively preventing any non-conforming parts from advancing to subsequent stages. This vigilant strategy is crucial in diminishing the risk of substandard goods, ensuring unparalleled quality at every phase of production, and preserving our legacy of excellence throughout the entire manufacturing journey.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) is a strategic linchpin, essential for the early identification and resolution of potential production challenges. This forward-thinking approach curtails the escalation of issues into mass production, serving as a bulwark against quality risks. The thoroughness and precision of our FAI process are pivotal in ensuring our products consistently achieve and frequently surpass the zenith of industry standards. This resolute dedication to quality is woven into every facet of our production cycle, guaranteeing that our offerings not only meet but consistently transcend the most rigorous quality benchmarks.
Meticulous Comprehensive Final Inspection
Prior to dispatch, every product is subjected to a meticulous and exhaustive final inspection process. This rigorous evaluation encompasses dimensions, visual appeal, performance, and any bespoke customer-specific criteria. Our comprehensive inspection regimen epitomizes our relentless commitment to quality, ensuring every component that exits our facility adheres to our stringent standards. We are unwavering in our mission to deliver only the pinnacle of quality products to our esteemed clientele, thereby fortifying our prestigious reputation for excellence and dependability.
Packaging & Shipping
Company Profile
Since its inception in 2009, with foundational roots stretching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has not only emerged but solidly established itself as a pinnacle of expertise in the realm of high-precision component machining. Our steadfast commitment to boundary-pushing innovation over the last two decades has driven us to delve profoundly into technical research, positioning us as trailblazers in the field of precision engineering. We have cultivated an extensive reservoir of technical prowess, securing a sterling market reputation that distinctly sets us apart as a vanguard in the industry. Our unrivaled capabilities in precision medical machining services consistently achieve extraordinarily tight tolerances and flawless surface finishes, solidifying our status as the go-to choice within the medical sector.
With four strategically positioned production bases nestled in the vibrant hubs of Shenzhen and Guiyang, and backed by a dedicated workforce exceeding 400 highly skilled employees, Donghui has meticulously crafted a robust and seamlessly integrated industry chain. This chain elegantly interlaces research and development, production, and delivery, guaranteeing that we consistently surpass the diverse expectations of our valued customers with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are uniquely equipped to tackle the most intricate and demanding machining challenges, steadfastly upholding our legacy of excellence and revolutionary 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)