Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not just committed to excellence-our passion propels us towards the zenith of manufacturing mastery. Our undying enthusiasm fuels our pursuit of brilliance both in the intricate art and the sophisticated science of producing superior manufacturing capabilities. Our exceptional expertise carves a path of innovation and precision, illuminating the niche realm of elite component manufacturing as a guiding light. As pioneers of innovation, we do not just meet but redefine the standards by which groundbreaking intelligent automation equipment is designed and produced. Our avant-garde solutions are seamlessly integrated across a vast spectrum of industries. Each solution is crafted to meet a broad array of precise applications with unparalleled precision, spanning diverse sectors such as:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and avant-garde solutions crafted to revolutionize the next generation of medical devices.
- Semiconductors: Revolutionizing chip production and associated critical equipment with indispensable core components that are vital for advancement.
- New Energy: Playing a pivotal role in the innovative and sustainable evolution of cutting-edge energy equipment.
- Automotive: Providing essential components that serve as the backbone of innovation within the automotive industry, enabling the progression of smart and electric vehicle technology.
Main Products
- Masterfully crafted non-standard customized components designed to serve key industries such as medical, automation, semiconductor, and automotive with unmatched excellence and distinctiveness.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an impressive fleet of over 300 of the industry's most cutting-edge machinery units. This elite ensemble ensures we maintain a vast and dynamic catalog of equipment categories, allowing us to lead the charge 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 masterfully tackle the multifaceted and demanding machining requirements of an array of industries with exceptional precision and efficiency. Our extensive capabilities guarantee adherence to the pinnacle of quality standards and offer bespoke customization that is meticulously crafted to meet the unique needs of our distinguished clientele.
- With an illustrious 20-year legacy, we harbor a rich reservoir of manufacturing experience, seamlessly interwoven with profound 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 surpass 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
Each piece of raw material that enters our cutting-edge facility is subjected to an exhaustive and rigorous evaluation process that sets the gold standard in quality assurance. Our meticulous methodology involves a comprehensive analysis of chemical composition and a thorough examination of physical attributes. Our steadfast commitment to excellence requires every supplier to provide a Certificate of Origin, accompanied by a stamped Declaration of Conformity. This diligent process ensures that only the finest materials are chosen for our high-precision medical machining services. Such stringent verification guarantees the integrity and purity of materials, consistently upholding our elevated standards of quality and precision.
Rigorous In-Process Quality Control: Pursuing Flawlessness
Throughout the intricate machining process, every component is subjected to meticulous scrutiny to ensure its dimensions and tolerances align precisely with our exacting specifications. This vigilant and ongoing inspection protocol proactively intercepts potential defects, preventing any non-conforming parts from proceeding further. Through this careful approach, we substantially reduce the risk of producing inferior products, ensuring that superior quality is maintained at every step of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) serves as the cornerstone of our strategy, expertly identifying and resolving potential production challenges from the very beginning. This proactive approach ensures that issues are prevented from escalating into full-scale production. This comprehensive and accurate FAI process is crucial for minimizing quality risks, guaranteeing that our products consistently achieve the highest standards and reflecting our unwavering commitment to excellence throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product leaves our facility, it undergoes an exhaustive and meticulous final inspection. This rigorous evaluation encompasses dimensions, visual appearance, and performance, along with any customer-specific requirements. This extensive inspection is a testament to our relentless pursuit of quality, ensuring that every part dispatched meets our stringent 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. 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)