Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are dedicated to achieving excellence, driven by our profound commitment to mastering the artful craftsmanship and intricate science vital to manufacturing excellence. Our unmatched expertise illuminates the path in precision, steering us through the esteemed realm of superior component manufacturing with unparalleled proficiency. As pioneers of innovation, we set the benchmark in crafting and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a broad spectrum of industries, meeting diverse demands in multiple applications, such as:
- Medical and Biotech: Delivering precisely engineered, ultra-high-precision components and forward-thinking solutions crafted for the next wave of medical devices.
- Semiconductors: Elevating chip production and associated equipment with pivotal components that are both critical and indispensable.
- New Energy: Contributing significantly to the innovative, sustainable advancement of next-generation energy equipment.
- Automotive: Supplying essential components that fuel innovation in the automotive sector, nurturing the evolution of smart and electric vehicles.
Main Products
- Crafted with mastery, our non-standard customized components serve key sectors such as medical, automation, semiconductor, and automotive with unmatched excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: Industrial Prowess Redefined Our operations are distinguished by an unparalleled fleet of over 300 of the industry's most sophisticated machinery units. This extensive and varied catalog equips us to stay ahead in innovation and adaptability, providing cutting-edge solutions that not only meet but exceed industry standards. These Top-Tier Branded Machines: The Foundation of Precision Our top-tier branded machinery units serve as the backbone of our precision-centric manufacturing, ensuring unrivaled accuracy in every detail. With our high-caliber machines, we expertly navigate intricate and demanding machining requirements across a multitude of industries, delivering remarkable precision and efficiency. Our expansive capabilities ensure strict adherence to the highest quality standards, offering bespoke customization that is meticulously tailored to meet the distinctive needs of our esteemed clients.
- With a prestigious 20-year legacy, we harness an invaluable wealth of manufacturing experience, seamlessly integrated with deep technical expertise and process strengths. This combination guarantees superior quality and groundbreaking innovation, enabling us to consistently deliver extraordinary products that not only surpass expectations but also set new benchmarks in the industry.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unrivaled Quality
High-Precision Inspection Equipment: Guaranteeing Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: We go beyond industry norms, utilizing unmatched precision to ensure superior quality.
Every piece of raw material that enters our secure warehouse undergoes an exhaustive evaluation process, setting a new standard in quality assurance. Our thorough analysis includes both chemical and physical examinations, carried out with unwavering precision. To further ensure premium quality, we require each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring the integration of only top-grade materials into our sophisticated medical machining services. This rigorous authentication not only safeguards material integrity but also aligns with our steadfast commitment to uphold the highest standards.
Rigorous In-Process Quality Control: Our unwavering attention to detail and constant vigilance drive us to continually pursue flawless perfection.
During the complex machining process, every component is meticulously examined to ensure precise alignment with our demanding specifications. Our continuous inspection protocol is designed to identify and intercept potential defects, thereby preventing non-conforming parts from advancing in production. This vigilant approach substantially reduces the risk of substandard goods, ensuring that superior quality is maintained consistently throughout every production phase.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive strategy lays the groundwork for unparalleled excellence and precision.
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, skillfully identifying and resolving potential production challenges from the outset. This proactive approach ensures that issues are addressed before they can affect mass production, minimizing quality risks. This comprehensive FAI process is pivotal in guaranteeing that our products consistently achieve the highest standards, reflecting our unyielding commitment to excellence at every stage of the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard ensuring unmatched quality and precision.
Before any product leaves our facility, it undergoes a rigorous final inspection that encompasses dimensions, visual appearance, and performance, along with customer-specific requirements. This comprehensive assessment is a testament to our unrelenting dedication to quality, ensuring every part we deliver meets our exacting standards. This dedication ensures that only the finest quality products reach our esteemed and valued customers.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, with our origins reaching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of precision and innovation in the realm of high-precision component machining. Our illustrious journey, driven by an insatiable passion and unwavering dedication to the art and science of engineering, spans over two remarkable decades. We have passionately carved our niche as pioneers in precision engineering, relentlessly pursuing technical research and setting industry benchmarks of unparalleled excellence. We have amassed an unmatched depth of technical expertise, distinguishing ourselves as market leaders with a renowned reputation for exceptional excellence. Our supreme mastery in precision medical machining services consistently meets the most stringent tolerances and delivers impeccable surface finishes. This solidifies our standing as the foremost choice in the medical sector, where our precision and reliability continue to earn unwavering trust and admiration.
With four strategically positioned production bases, in the dynamic and thriving hubs of Shenzhen and Guiyang, backed by an inspiring workforce of over 400 highly skilled employees, Donghui has meticulously developed a robust, vertically integrated industry chain. This seamlessly connects research and development, top-tier production, and flawless delivery, ensuring that we meet and exceed the diverse needs of our clients with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are fully equipped to tackle the most complex and challenging machining tasks, reinforcing our prestigious reputation for excellence and groundbreaking 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)