Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are committed to achieving unmatched excellence. Driven by an unwavering dedication to mastering the art of craftsmanship and the intricate science essential to manufacturing, we push the boundaries of what's possible and elevate industry standards. Our expertise in precision is unmatched, lighting the way through the esteemed realm of superior component manufacturing. We navigate with unparalleled proficiency, setting new standards in quality and precision. As trailblazers in innovation, we redefine the standards in crafting and delivering revolutionary intelligent automation equipment. Our cutting-edge solutions are designed to seamlessly integrate across a wide array of industries, meeting diverse needs in various applications, such as:
- Medical and Biotech: Delivering meticulously engineered, ultra-high-precision components and pioneering solutions tailored for the groundbreaking generation of medical devices.
- Semiconductors: Enhancing chip production and its associated equipment with vital components that are crucial and irreplaceable, ensuring precision and efficiency.
- New Energy: Playing a pivotal role in the sustainable innovation and advancement of the next-generation energy equipment, pushing the green frontier forward.
- Automotive: Providing indispensable components that drive innovation in the automotive industry, supporting the evolution of smart and electric vehicles for a smarter future.
Main Products
- Expertly crafted, our non-standard customized components serve essential sectors such as medical, automation, semiconductor, and automotive with exceptional excellence and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations proudly feature an extraordinary fleet of over 300 of the most advanced machinery units available in the industry. This extensive and diverse catalog of equipment ensures we are equipped with the latest in innovation and adaptability, allowing us to offer solutions that are not only cutting-edge but also precisely suited to meet the evolving demands of today's dynamic market. These Top-Tier Branded machinery units serve as the cornerstone of our precision-focused manufacturing process. Armed with our high-caliber machines, we adeptly meet the intricate and challenging machining requirements of various industries. Our operations are distinguished by remarkable precision and efficiency, aligning with the strictest quality standards. Furthermore, we provide bespoke customization options that are meticulously designed to meet the unique specifications of our valued clientele.
- With a distinguished 20-year heritage, we draw on a vast reservoir of manufacturing experience combined with profound technical expertise and advanced process capabilities. This synergy guarantees superior quality and fosters groundbreaking innovation, enabling us to consistently surpass client expectations and establish new industry benchmarks.
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: With unmatched precision, we surpass industry standards, ensuring excellence at every step.
Every raw material entering our secure warehouse undergoes a thorough and industry-leading evaluation process, setting the benchmark for quality assurance. Our meticulous assessment includes an in-depth analysis of chemical composition along with a detailed examination of physical properties. Our unwavering drive for perfection mandates that each supplier provides a Certificate of Origin and a stamped Declaration of Conformity, ensuring only top-tier materials are incorporated into our advanced medical machining services. This stringent verification process upholds the integrity and quality of materials, perfectly aligning with our steadfast commitment to superior standards.
Rigorous In-Process Quality Control: Our unwavering focus and meticulous attention to detail propel us in our pursuit of perfection.
Throughout the sophisticated machining process, each component is carefully scrutinized to ensure dimensions and tolerances align perfectly with our demanding specifications. This ongoing inspection protocol is vital to proactively intercept any potential defects, preventing non-conforming parts from advancing. By employing this vigilant strategy, we significantly reduce the risk of producing substandard goods, ensuring that superior quality is maintained consistently throughout every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive measures establish a foundation of unparalleled excellence and precision.
Our First Article Inspection (FAI) process is the bedrock of our quality strategy, adeptly identifying and resolving potential production issues from inception. This proactive methodology ensures challenges are addressed before they escalate into larger production concerns. The comprehensive FAI process is crucial in minimizing quality risks, assuring that our products consistently reach the pinnacle of standards, exemplifying our unwavering dedication to excellence at every stage of the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of unrivaled quality and precision.
Before any product departs from our facility, it undergoes a comprehensive final inspection. This rigorous assessment encompasses dimensions, visual appearance, performance, and customer-specific requirements. This detailed inspection stands as a testament to our relentless dedication to quality, ensuring every part we deliver meets our rigorous standards, providing only the highest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
In the esteemed corridors of high-precision component craftsmanship, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands tall, having been founded in the celebrated year of 2009, with roots that trace back to 2002. Over the course of more than twenty notable years, our journey has been one of relentless pursuit in the artful and scientific realms of engineering. As a beacon of precision and innovation, we have passionately carved out our identity as trailblazers, pioneering cutting-edge technical research, and establishing industry standards of extraordinary excellence. We possess an unrivaled reservoir of technical prowess, proudly setting ourselves apart as market vanguards with a reputation that resonates with exceptional excellence. Our unmatched expertise in precision medical machining services ensures that we consistently adhere to the most exacting tolerances, delivering flawless surface finishes. This further cements our status as the preferred choice within the medical sector, where our precision, dependability, and unwavering trust continue to captivate and inspire confidence.
With a strategic network of four production bases, nestled within the vibrant and bustling locales of Shenzhen and Guiyang, coupled with a dedicated team comprising over 400 exceptionally talented employees, Donghui has skillfully crafted a comprehensive, vertically integrated industry chain. This sophisticated system seamlessly links research and development with elite production and flawless delivery, ensuring that we consistently meet and surpass our clients' diverse demands with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are fully primed to undertake the most intricate and demanding machining projects, thereby fortifying our esteemed reputation for 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)