Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication to excellence is reflected in our profound commitment to mastering both the artful craftsmanship and the intricate science necessary for manufacturing supremacy. Our exceptional expertise lights the way in precision, guiding us with unrivaled skill through the prestigious domain of superior component manufacturing. As innovators at the forefront of technology, we establish the gold standard in creating and delivering groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across a diverse array of industries, meeting the varied demands of numerous applications, such as:
- Medical and Biotech: Delivering meticulously engineered, ultra-high-precision components and visionary solutions crafted for the future of medical devices.
- Semiconductors: Enhancing chip production and associated equipment with essential components that are both critical and indispensable.
- New Energy: Playing a pivotal role in the innovative, sustainable progress of next-generation energy equipment.
- Automotive: Providing crucial components that drive innovation in the automotive sector, fostering the evolution of smart and electric vehicles.
Main Products
- Crafted with unparalleled skill, our non-standard customized components serve key sectors such as medical, automation, semiconductor, and automotive with unmatched excellence, setting industry benchmarks.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations boast an unparalleled fleet of over 300 of the industry's most sophisticated machinery units, ensuring we possess an extensive and diverse catalog of equipment categories. This expansive collection empowers us to remain at the forefront of innovation and adaptability, offering cutting-edge solutions. These Top-Tier Branded machinery units form the backbone of our precision-centric manufacturing. With our high-caliber machines, we expertly fulfill intricate and demanding machining requirements across diverse industries with remarkable precision and efficiency. Our comprehensive capabilities ensure strict adherence to the highest quality standards while offering bespoke customization, meticulously tailored to the unique needs of our esteemed clients.
- With a prestigious 20-year legacy, we harness a wealth of manufacturing experience, seamlessly integrated with substantial technical expertise and process strengths, guaranteeing superior quality and groundbreaking innovation. This enduring expertise enables us to consistently deliver extraordinary products that surpass expectations and set new benchmarks in the industry.
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: We go above and beyond industry norms with our precision practices, unmatched in their accuracy and dedication.
Every single piece of raw material that enters our highly secure warehouse undergoes an exhaustive and unparalleled evaluation process, setting a new benchmark in the industry for quality assurance. Our meticulous approach involves an in-depth analysis of the chemical composition, expertly paired with a comprehensive examination of physical properties. We demand relentless excellence, requiring that each and every supplier provides a Certificate of Origin along with a stamped Declaration of Conformity, ensuring that only premium materials are integrated into our exceptionally sophisticated medical machining services. This rigorous authentication process guarantees the integrity and purity of materials, seamlessly aligning with our unwavering commitment to superior standards.
Rigorous In-Process Quality Control: Our unwavering vigilance and acute attention to detail propel us forward, relentlessly striving for perfection.
Throughout the intricate machining process, each component undergoes meticulous scrutiny to ensure dimensions and tolerances are precisely aligned with our exacting specifications. This continuous inspection protocol is crucial in proactively intercepting any potential defects, preventing any non-conforming parts from progressing. Through this vigilant strategy, we effectively minimize the risk of producing substandard goods, guaranteeing that superior quality is consistently upheld throughout every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the bedrock of impeccable excellence and precision.
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, expertly identifying and resolving potential production challenges right from the start. This proactive methodology ensures that issues are contained before they escalate into mass production concerns. This comprehensive FAI process is pivotal in minimizing quality risks, guaranteeing that our products consistently achieve the highest standards, reflecting our unwavering 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 is subject to an exhaustive final inspection. This rigorous assessment encompasses dimensions, visual appearance, and performance, as well as customer-specific requirements. This extensive inspection stands as a testament to our relentless commitment to quality, ensuring that every part we deliver meets our exacting standards, thereby providing only the finest quality products to 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)