Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere necessity; it is ignited by an intense passion for the artful craft and the exacting science of precision manufacturing. Our unparalleled expertise shines brightly in the world of high-end component fabrication, lighting the way to extraordinary precision and excellence. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve numerous industries, effectively meeting a wide range of applications, including:
- Medical and Biotech: Providing meticulously crafted high-precision components and innovative solutions for cutting-edge medical devices, ensuring adherence to the highest quality standards.
- Semiconductors: Bolstering chip manufacturing and its essential equipment by offering indispensable core components critical to the industry's triumph.
- New Energy: Committed to the dynamic and sustainable development of groundbreaking energy equipment, championing eco-friendly technological advancements.
- Automotive: Supplying crucial components that drive innovation within the automotive industry, supporting the evolution of smart and electric vehicles.
Main Products
- We excel in creating non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assemblage of over 300 renowned machines, empowering us to expertly cater to an extensive array of equipment categories with finesse. This capability endows us with the prowess to adeptly meet the intricate machining requirements of myriad industries, ensuring unmatched precision and unsurpassed efficiency in every endeavor.
- With an illustrious history spanning two decades, we capitalize on extensive production experience, alongside formidable technical and procedural expertise. This guarantees exceptional quality and innovative foresight, distinguishing us as trailblazers in the dynamic world of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Scrutiny of Incoming Materials
Each and every raw material gracing our warehouse undergoes an exhaustive and rigorous vetting process, leaving no stone unturned. Our meticulous analysis encompasses a detailed assessment of the chemical composition alongside a thorough inspection of the physical attributes. Anchored by an unwavering promise to quality, we mandate that every supplier furnishes a Certificate of Origin and a duly stamped Declaration of Conformity. This ensures that only the crème de la crème of materials are selected for our high-precision medical machining services. Through this stringent authentication process, we guarantee that our materials not only meet but surpass the highest standards of integrity and purity, perfectly mirroring our steadfast commitment to quality excellence.
In-Depth, In-Process Quality Assurance
Within the realm of our intricate and precise machining operations, every component is subject to meticulous scrutiny, ensuring its dimensions and tolerances not just meet, but surpass our exacting standards. Our diligent, continuous inspection protocol is adeptly designed to intercept potential defects at their inception, thereby preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is pivotal in minimizing the risk of substandard goods, safeguarding superior quality at every phase of production and maintaining excellence throughout the entire process.
Strategically Pioneering First Article Inspection (FAI)
Our First Article Inspection (FAI) stands as a foundational strategic measure, vital for foreseeing and addressing potential production challenges at their nascent stage. This proactive methodology forestalls issues from escalating into mass production. The comprehensive precision of our FAI process is critical in minimizing quality risks, ensuring our products consistently reach the zenith of standards. This unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing our products consistently meet and exceed the highest quality benchmarks.
Meticulous, All-Encompassing Final Inspection
Before any product makes its way out of our facility, it is put through an intensive and all-encompassing final inspection. This rigorous process meticulously evaluates dimensions, visual aesthetics, performance, and any bespoke requirements from the customer. Our comprehensive inspection protocol stands as a testament to our relentless commitment to quality, ensuring that every part leaving our facility meets our stringent standards. We remain steadfast in our pursuit of delivering only the highest quality products to our esteemed customers, thereby upholding our sterling reputation for excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Since its dynamic inception in 2009, growing from its foundational roots planted in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has flourished as a shining beacon of expertise in the realm of high-precision basic component machining. Our relentless commitment to cutting-edge innovation over the past two transformative decades has propelled us into the forefront of technical research, carving out a distinguished path as visionaries and pioneers in the art of precision engineering. We have cultivated an impressive reservoir of technical expertise, securing a remarkable market reputation that distinguishes us as the vanguard of the industry. Our mastery in precision medical machining services is unparalleled, consistently achieving extraordinarily tight tolerances and flawless surface finishes, positioning us as the go-to choice in the medical sector.
With four strategically located production bases in the vibrant hubs of Shenzhen and Guiyang, supported by a committed workforce of over 400 highly skilled employees, Donghui has engineered a formidable and vertically integrated industry chain. This sophisticated chain seamlessly intertwines research and development, production, and delivery, ensuring that we not only meet but exceed the varied demands of our customers with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are poised to tackle the most intricate and demanding machining tasks, steadfastly upholding our reputation for excellence and trailblazing 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)