Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not just a duty; it is a relentless passion for the exquisite art and meticulous science of precision manufacturing, making us leaders in our field. Our unrivaled expertise stands as a beacon in high-end component fabrication, guiding the industry towards unparalleled precision and excellence. We are at the forefront of developing and producing pioneering intelligent automation equipment. Our state-of-the-art solutions cater to a broad spectrum of industries, successfully addressing a wide range of applications, including:
- Medical and Biotech: Delivering masterfully engineered high-precision components and groundbreaking solutions for advanced medical devices, consistently surpassing the highest quality standards.
- Semiconductors: Revolutionizing chip production and its related equipment with our essential core components, which are pivotal to the industry's thriving advancements.
- New Energy: Championing the dynamic and sustainable development of cutting-edge energy equipment, propelling eco-friendly technology progress.
- Automotive: Supplying crucial components that drive innovation within the automotive sector, facilitating the transformation of smart and electric vehicles.
Main Products
- We excel in creating non-standard customized components, extensively serving industries like medical, automation, semiconductor, and automotive, ensuring unmatched precision and superior quality with every product we provide.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary and diverse assortment of over 300 state-of-the-art renowned and industry-leading machines, enabling us to masterfully address an impressively comprehensive spectrum of equipment categories. This capability empowers us to skillfully and adeptly fulfill the intricate and demanding machining needs of a wide variety of industries with unparalleled precision and remarkable efficiency.
- With a rich history spanning two decades, we proudly leverage our vast production experience combined with substantial technical and process prowess. This powerful combination guarantees exceptional quality and forward-thinking innovation, continuously setting us apart as true pioneers and leaders in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unmatched Incoming Material Verification
Every raw material that graces our warehouse embarks on a journey through an exhaustive and rigorous examination process. Our thorough inspections encompass a deep evaluation of chemical composition alongside a meticulous assessment of physical properties. We steadfastly uphold our commitment to impeccable quality by mandating that every supplier provides a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only top-tier materials are chosen for our high-precision medical machining services. Our rigorous authentication assures that these materials meet the pinnacle of integrity and purity standards, perfectly reflecting our unwavering dedication to quality.
Intensive In-Process Quality Vigilance
In the realm of our intricate and precise machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances are not merely met but surpassed according to our stringent specifications. Our diligent and nonstop inspection protocol is astutely crafted to detect potential defects at the earliest opportunity, thereby preempting non-conforming parts from advancing to subsequent production stages. This vigilant method is crucial in mitigating the risk of substandard goods, ensuring unparalleled quality at every phase, and upholding excellence throughout the production continuum.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) process stands as a strategic cornerstone, vital for early identification and resolution of potential production challenges. This foresighted approach averts issues from magnifying during mass production. The exhaustive and precise nature of our FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the zenith of standards. Our relentless pursuit of excellence infuses every facet of the production cycle, guaranteeing that we meet and surpass the highest quality benchmarks.
Thorough and Precise Final Inspection
Before any product departs our facility, it is subject to a meticulous and comprehensive final inspection. This process rigorously evaluates dimensions, visual aesthetics, performance, and any customer-specific parameters. Our exhaustive inspection process epitomizes our unyielding commitment to quality, ensuring that every component dispatched from our premises aligns with our exacting standards. We are resolute in delivering only the finest quality products to our esteemed customers, reinforcing our reputation for excellence and dependability.
Packaging & Shipping
Company Profile
Founded with a visionary zeal in 2002 and established into a formidable force in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. shines as a beacon of excellence in the realm of high-precision component machining. With a relentless pursuit of innovation over the last two decades, we have embarked on a transformative journey in technical research, carving out a niche as frontrunners in the art and science of precision engineering. We have accumulated a treasure trove of invaluable technical expertise, earning us a resplendent reputation in the market, distinguishing us as a trailblazer in the industry. Our prowess in precision medical machining services is unrivaled, consistently achieving astonishingly precise tolerances and immaculate surface finishes, making us the undisputed choice in the medical sector.
With four strategically located production bases nestled in the dynamic epicenters of Shenzhen and Guiyang, powered by a dedicated team of over 400 highly skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless chain intricately interlaces research and development, production, and delivery, ensuring that we not only meet but surpass the diverse expectations of our clientele with stellar efficiency and unparalleled quality. Our cutting-edge facilities are adept at handling the most complex and demanding machining tasks, steadfastly upholding our reputation for exceptional 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)