Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment extends beyond mere duty; it's fueled by a fervent passion for the art and science of precision manufacturing, ensuring every piece exudes unparalleled excellence. Our unparalleled expertise acts as a beacon in the high-end component fabrication industry, illuminating the journey towards meticulous precision and flawless execution. As pioneers in the creation and production of revolutionary intelligent automation equipment, we provide state-of-the-art solutions to a wide spectrum of industries, effectively addressing diverse applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and groundbreaking solutions for cutting-edge medical devices, ensuring adherence to the highest quality standards.
- Semiconductors: Fueling the semiconductor industry by providing indispensable core components vital for chip production and related equipment, ensuring industry success.
- New Energy: Leading the charge in the dynamic and sustainable development of innovative energy equipment, championing advancements in eco-friendly technology.
- Automotive: Supplying essential components that drive innovation in the automotive sector, facilitating the evolution of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, guaranteeing unmatched precision and superior 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
Exceptional Incoming Material Scrutiny
Every piece of raw material that arrives at our facility is subjected to an exhaustive and rigorous evaluation process. Our comprehensive analyses delve into chemical composition intricacies and perform an insightful examination of physical properties. With an unwavering dedication to excellence, we mandate that all suppliers furnish a Certificate of Origin along with a stamped Declaration of Conformity. This meticulous selection process ensures only the superior materials make the cut for our high-precision medical machining services. Through our stringent verification regime, we guarantee that these materials meet the apex of standards for integrity and purity, perfectly harmonizing with our resolute commitment to quality.
Rigorous In-Process Quality Surveillance
Throughout our sophisticated and precise machining operations, each component is subjected to meticulous scrutiny to confirm that its dimensions and tolerances not only meet but surpass our stringent specifications. Our assiduous and continuous inspection protocols are strategically devised to detect and intercept potential anomalies early, preventing any non-conforming parts from advancing to subsequent stages. This proactive vigilance is critical in minimizing the risk of inferior goods, ensuring superior quality at every production phase, and preserving excellence throughout the entire manufacturing process.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy integral to identifying and resolving potential production issues at the inception stage. This anticipatory approach is pivotal in preventing challenges from evolving into full-scale production concerns. The extensive and precise nature of our FAI process is essential in mitigating quality risks, ensuring our products consistently achieve the zenith of standards. This unwavering dedication to excellence permeates every phase of the production cycle, ensuring we consistently meet and exceed the highest quality benchmarks.
Thorough Comprehensive Final Inspection
Before any product departs from our facility, it is subjected to a meticulous and exhaustive final inspection. This rigorous process evaluates dimensions, visual aesthetics, performance, and any bespoke customer requirements. Our all-encompassing inspection procedure stands as a testament to our relentless commitment to quality, ensuring each part dispatched from our premises adheres to our exacting standards. We are resolute in delivering only the pinnacle of quality products to our esteemed customers, reinforcing our reputation for excellence and dependability.
Packaging & Shipping
Company Profile
Established in 2009 and tracing its roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands tall as a beacon of mastery in the realm of high-precision component machining. Our steadfast commitment to groundbreaking innovation over the past two decades has propelled us into the forefront of technical research, marking us as true visionaries in the world of precision engineering. We have cultivated an extensive reservoir of technical prowess, securing a remarkable market reputation that distinguishes us as the industry vanguard. Our expertise in precision medical machining services is unparalleled, consistently delivering extraordinary tolerances and flawless surface finishes, rendering us the go-to choice within the medical sector.
With four strategically positioned production bases in the dynamic epicenters of Shenzhen and Guiyang, supported by a dedicated team exceeding 400 highly skilled personnel, Donghui has meticulously forged a robust, vertically integrated industry chain. This seamless chain intricately interlaces research and development, production, and delivery, empowering us to consistently fulfill and surpass the diverse expectations of our clientele with exceptional efficiency and unmatched quality. Our cutting-edge facilities are primed to tackle the most complex and challenging machining endeavors, perpetuating our legacy of excellence and pioneering 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)