Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are synonymous with an unwavering dedication to excellence, transcending beyond obligation into the realm of artistry in precision. Our unyielding passion propels us to achieve brilliance in both the intricate craftsmanship and the advanced science of manufacturing innovation. Our unrivaled expertise illuminates the way to unparalleled precision, acting as a guiding light in the esteemed domain of high-end component manufacturing. Pioneering at the pinnacle of innovation, we establish the benchmark for excellence in designing and crafting groundbreaking intelligent automation equipment. Our state-of-the-art solutions effortlessly integrate across a broad spectrum of industries, expertly meeting a wide array of needs with precise applications that include:
- Medical and Biotech: In the realm of medical technology, we offer meticulously engineered, ultra-precise components alongside revolutionary solutions set to redefine the future of healthcare.
- Semiconductors: We provide indispensable core components that significantly enhance the efficiency and productivity of chip production and associated critical equipment.
- New Energy: Playing a pivotal role in the innovative and eco-friendly transformation of cutting-edge energy equipment, we contribute to the sustainable future of energy technologies.
- Automotive: Supplying vital components that fuel innovation within the automotive industry, we support the progress of intelligent and electric vehicles shaping the future of mobility.
Main Products
- With exceptional craftsmanship, we skillfully design non-standard customized components, serving pivotal sectors such as medical, automation, semiconductor, and automotive industries with outstanding excellence and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are reinforced by an unrivaled fleet of over 300 of the industry's most state-of-the-art machinery units. This elite and comprehensive collection ensures we sustain a vast and versatile inventory of equipment categories. It empowers us to be pioneers in fostering innovation and adaptability across a diverse array of industrial environments. These top-tier branded machinery units are the foundation of our precision-driven manufacturing. Enabling us to meet the complex and rigorous machining demands of a wide range of industries with unmatched precision and efficiency, our extensive capabilities guarantee compliance with the highest quality standards. We provide bespoke customization, meticulously tailored to satisfy the unique requirements of our esteemed clientele, consistently surpassing their expectations with each project.
- With a distinguished 20-year legacy, we possess a profound reservoir of manufacturing experience, seamlessly integrated with deep technical expertise and process strengths. This guarantees the provision of superior quality and revolutionary innovation. Our longstanding expertise allows us to consistently deliver remarkable products that not only fulfill but exceed expectations, establishing 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
In our cutting-edge warehouse, we initiate the journey by applying an unmatched standard of quality assurance to every raw material. Our exhaustive evaluation process encompasses an in-depth analysis of both chemical and physical properties. We exercise the utmost diligence, mandating that each supplier accompanies their materials with a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the finest materials are chosen for our high-precision medical machining services. Such rigorous verification processes are integral to maintaining the integrity and purity of materials, consistently aligning with our elevated standards of distinction and precision.
Rigorous In-Process Quality Control: Aiming for Perfection
During the intricate machining process, each component is scrutinized with meticulous precision to ensure its dimensions and tolerances align with our stringent specifications. Our diligent inspection protocol is designed to continuously detect potential defects, effectively preventing any non-conforming parts from advancing further in the process. This vigilant approach is pivotal in significantly reducing the risk of producing substandard goods, thereby ensuring that superior quality is maintained at every essential stage of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) process forms the cornerstone of our strategic approach, expertly identifying and resolving potential production challenges at the very inception. This proactive method ensures that issues are thwarted before they extend into mass production, thus securing a seamless flow of flawless manufacturing. Our thorough FAI process is indispensable for minimizing quality risks, ensuring our products consistently meet 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 covers dimensions, visual appearance, performance, and any customer-specific requirements. Our extensive inspection process underscores our relentless pursuit of quality, ensuring that every part dispatched from our facility meets our exacting standards. We are dedicated to 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. Over the past two decades, through an unwavering commitment to innovation, we have emerged as trailblazers in precision engineering. Through relentless technical research, we have established ourselves as industry pioneers, setting benchmarks of excellence. Our company boasts a wealth of exceptional technical expertise, solidifying our position as market leaders with a reputation for unparalleled excellence. Our superior skill in precision medical machining services consistently achieves the most stringent tolerances and flawless 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 remarkable efficiency and unmatched quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and challenging 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)