Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are guided by an unwavering commitment to unparalleled excellence, fueled by a passionate drive to achieve brilliance. This dedication permeates both the intricate artistry and the advanced scientific techniques that define our manufacturing capabilities. Our unparalleled expertise serves as a guiding light in the world of precision, setting new benchmarks within the elite realm of component manufacturing. As pioneers in innovation, we uphold the gold standard in the design and creation of trailblazing intelligent automation equipment. Our state-of-the-art solutions integrate seamlessly across a multitude of industries, adeptly addressing a wide range of needs with immaculate precision in numerous applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components, as well as pioneering solutions, crafted for the next generation of medical devices, ensuring unmatched reliability and cutting-edge performance.
- Semiconductors: Elevating chip production and related essential equipment with core components that are vital, ensuring superior performance and robust functionality.
- New Energy: Playing a crucial role in the innovative and sustainable advancement of forward-thinking energy equipment, driving the future of energy solutions.
- Automotive: Providing essential components that propel innovation within the automotive sector, enabling the evolution of smart and electric vehicles with groundbreaking efficiency.
Main Products
- Specializing in expertly crafted custom non-standard components, we serve critical sectors such as medical, automation, semiconductor, and automotive industries, distinguished by exceptional craftsmanship and quality.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by a fleet of over 300 of the industry's most advanced machinery units. This elite ensemble ensures we maintain a diverse and dynamic catalog of equipment categories, allowing us to lead in innovation and adaptability across various industrial landscapes. These top-tier branded machinery units are the cornerstone of our precision-focused manufacturing, enabling us to expertly tackle the complex and demanding machining requirements across a wide range of industries with exceptional precision and efficiency. Our vast capabilities ensure adherence to the highest quality standards and offer bespoke customization meticulously crafted to meet the unique needs of our distinguished clientele.
- With a prestigious 20-year legacy, we possess a rich reservoir of manufacturing experience, seamlessly interwoven with deep technical expertise and process strengths. This ensures the delivery of superior quality and groundbreaking innovation. Our enduring expertise empowers us to consistently deliver extraordinary products that not only meet but 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
Intricate and Thorough Incoming Material Inspection: Surpassing Industry Benchmarks
Every single piece of raw material entering our state-of-the-art warehouse undergoes a comprehensive and thorough evaluation process, establishing a gold standard in quality assurance. Our methodical approach involves a meticulous analysis of the chemical composition and an exhaustive examination of physical attributes. Our steadfast commitment to excellence mandates that each supplier provides a Certificate of Origin, along with a stamped Declaration of Conformity. This ensures that only the finest materials are selected for our high-precision medical machining services. Such stringent authentication guarantees the integrity and purity of materials, consistently maintaining our lofty standards of quality and precision.
In-Process Quality Control: The Pursuit of Perfection
Throughout the intricate machining process, every component is subject to meticulous scrutiny to confirm that its dimensions and tolerances align with our exacting specifications. This diligent and continual inspection protocol proactively intercepts potential defects, preventing any non-conforming parts from advancing further. Through this vigilant approach, we significantly reduce the risk of producing substantial quantities of substandard goods, thereby ensuring superior quality is maintained at every stage of production.
Proactive First Article Inspection (FAI): A Preventive Framework for Achieving Excellence
Our First Article Inspection (FAI) forms the cornerstone of our strategic approach, adeptly identifying and resolving potential production challenges from the outset. This proactive methodology ensures that issues are prevented from escalating into mass production stages. This comprehensive and precise FAI process is crucial for minimizing quality risks, guaranteeing that our products consistently reach the highest standards, reflecting our unwavering dedication to excellence throughout the production cycle.
Comprehensive Final Inspection: The Ultimate Guardian of Quality Assurance
Before any product departs from our facility, it undergoes a detailed and meticulous final inspection process. This rigorous evaluation covers dimensions, visual appearance, and performance, alongside 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 and delivers 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. We have amassed an unrivaled wealth of technical expertise, positioning ourselves as market leaders with a stellar reputation for excellence. Our unmatched prowess in precision medical machining services consistently achieves the most exacting tolerances and flawless surface finishes. This places us as the preferred choice in the medical sector, where our precision and reliability are trusted and valued.
With four strategically positioned production bases, in the bustling centers 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)