Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication to excellence transcends conventional boundaries. Driven by an unyielding passion, we pursue exceptional brilliance in the advanced art and precise science of manufacturing mastery. Our unparalleled expertise illuminates the path to superior precision, acting as a guiding beacon within the elite world of high-end component manufacturing. At the cutting edge of innovation, we define the gold standard in designing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a diverse array of industries, skillfully addressing a multitude of needs with precision in numerous applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and pioneering solutions designed for next-generation medical devices that set a new standard for excellence.
- Semiconductors: Enhancing chip production and associated vital equipment with indispensable core components, elevating the semiconductor industry to new heights.
- New Energy: Contributing significantly to the innovative and sustainable advancement of cutting-edge energy equipment, driving the future of energy solutions.
- Automotive: Providing essential components that are catalysts for innovation in the automotive industry, powering the evolution of smart and electric vehicles with cutting-edge precision.
Main Products
- Expertly crafted, non-standard customized components, distinguished by exceptional quality, serve critical sectors such as medical, automation, semiconductor, and automotive industries with unparalleled distinction.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an extraordinary fleet of over 300 of the industry's most state-of-the-art machinery units. This elite ensemble sets the standard for excellence, ensuring we uphold a comprehensive and dynamic range of equipment categories. It empowers us to spearhead innovation and adaptability across a myriad of industrial landscapes, driving progress with unmatched dedication. These top-tier branded machinery units form the foundation of our precision-focused manufacturing, enabling us to deftly handle the complex and demanding machining requirements of a diverse array of industries with unmatched precision and efficiency. Our expansive capabilities ensure compliance with the highest quality standards, offering tailor-made customization that is meticulously crafted to meet the distinct needs of our esteemed clientele.
- With an illustrious 20-year legacy, we anchor ourselves in a rich reservoir of manufacturing experience, seamlessly entwined with profound technical expertise and process strengths. This synergy guarantees the delivery of superior quality and pioneering innovation, allowing us to consistently produce extraordinary products that not only meet but often exceed expectations, setting new benchmarks in industry standards.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: Surpassing Industry Benchmarks
Every single piece of raw material that enters our state-of-the-art warehouse undergoes a comprehensive and stringent evaluation process, setting the gold standard in quality assurance. Our meticulous approach includes a thorough analysis of chemical composition and an exhaustive examination of physical attributes. We require each supplier to provide a Certificate of Origin, accompanied by a stamped Declaration of Conformity. This rigorous authentication ensures the integrity and purity of materials, consistently meeting our high standards for precision medical machining services.
Rigorous In-Process Quality Control: Pursuing Flawlessness
Throughout the intricate machining process, each component is meticulously scrutinized to confirm alignment with our exacting specifications in terms of dimensions and tolerances. This diligent inspection protocol intercepts potential defects proactively, preventing non-conforming parts from advancing further. By maintaining this vigilant approach, we significantly reduce the risk of producing substandard goods, thereby ensuring superior quality is upheld at every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) process is the cornerstone of our strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach prevents issues from escalating into mass production, ensuring a seamless flow of flawless production. Our comprehensive and precise FAI process is crucial for minimizing quality risks, guaranteeing that our products always meet the highest standards, reflecting our unwavering dedication to excellence throughout the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before leaving our facility, every product undergoes a detailed and meticulous final inspection process. This rigorous evaluation covers dimensions, visual appearance, performance, and any customer-specific requirements. This extensive inspection is a testament to our relentless commitment to quality, ensuring that every part dispatched meets our exacting standards, delivering only the highest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon its founding vision from 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has passionately dedicated itself to mastering the art and science of high-precision component machining. With an unwavering commitment to innovation over the past two decades, we have emerged as trailblazers in the realm of precision engineering. Through relentless technical research, we have established ourselves as industry pioneers, setting benchmarks of excellence. Our company possesses a wealth of unparalleled technical expertise, solidifying our position as market leaders with a distinguished reputation for excellence. Our exceptional skill in precision medical machining services consistently achieves the most stringent tolerances and immaculate surface finishes. This distinction makes us the top choice within the medical sector, where our precision and reliability are esteemed and indispensable.
With four strategically positioned production bases, situated in the dynamic hubs of Shenzhen and Guiyang, and powered by an ambitious workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our clientele with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and demanding machining tasks, cementing our prestigious reputation for excellence and 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)