Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we uphold the highest standards of excellence, mastering both the art and science of precision manufacturing. Our unwavering dedication ensures we deliver perfection with every component. Our commitment to quality craftsmanship and technological prowess distinguishes us, guaranteeing unmatched results across the board. Our unmatched expertise leads the way in precision engineering. We expertly navigate the prestigious field of superior component manufacturing with refined finesse, ensuring excellence at every stage. As pioneers of innovation, we set benchmarks in designing and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions are seamlessly integrated across a wide array of industries, meeting diverse demands through applications in sectors such as:
- Medical and Biotech: Providing impeccably engineered, ultra-high-precision components and revolutionary solutions, tailored for cutting-edge medical technologies.
- Semiconductors: Elevating chip fabrication and related equipment with vital, critical components that drive unmatched progress and enhanced efficiency.
- New Energy: Playing a crucial role in accelerating the innovative and sustainable development of next-generation energy equipment, shaping the future of energy solutions.
- Automotive: Delivering essential components that lead innovation in the automotive industry, propelling the advancement of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components exemplify the pinnacle of excellence. Catering to key sectors such as medical, automation, semiconductor, and automotive industries, we provide unmatched precision and superior quality that endure the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are propelled by an impressive assembly of over 300 state-of-the-art machinery units, representing the pinnacle of industrial sophistication. This diverse and advanced equipment portfolio empowers us to stay at the forefront of innovation, enhancing our adaptability to ever-evolving market needs. By consistently delivering cutting-edge solutions, we define industry excellence, setting new benchmarks in precision and quality. These Top-Tier Branded machinery units form the bedrock of our precision-driven manufacturing processes, embodying the robust foundation necessary to uphold our exacting production standards. Leveraging our high-caliber machines, we proficiently navigate complex and challenging machining requirements across a wide range of industries with unmatched precision and efficiency. Our extensive capabilities ensure unwavering adherence to superior quality standards while delivering bespoke customization, meticulously crafted to meet and exceed the unique demands of our esteemed clients, always surpassing their loftiest expectations.
- With an esteemed 20-year legacy, we draw from a wealth of manufacturing experience seamlessly integrated with extensive technical expertise and industry-leading process acumen. This perfect blend ensures not only superior quality but also trailblazing innovation, enabling us to continually deliver extraordinary products that consistently exceed expectations while setting new benchmarks of excellence within the industry.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous Incoming Material Inspection: We stand as industry frontrunners, employing unparalleled precision techniques, setting the gold standard for excellence beyond industry norms.
Before any raw material graces our cutting-edge warehouse, it is subjected to an exhaustive evaluation process, setting a transformative quality assurance benchmark. Our all-encompassing strategy includes detailed chemical composition analysis and precise physical property assessment. Our unwavering pursuit of excellence requires suppliers to provide a Certificate of Origin and a verified Declaration of Conformity. This ensures only the finest materials are integrated into our advanced medical machining services. This rigorous validation process not only guarantees material integrity and purity but also aligns perfectly with our steadfast commitment to superior quality.
In-Process Quality Control: Our uncompromising vigilance and meticulous attention to detail are the driving forces behind our quest for perfection.
Throughout the intricate machining process, every component is meticulously examined to ensure dimensions and tolerances align precisely with our stringent specifications. This continuous inspection protocol is crucial for proactively identifying and addressing potential defects, effectively intercepting any non-conforming parts. By employing this diligent strategy, we significantly diminish the risk of producing substandard goods, ensuring exceptional quality is consistently maintained throughout every phase of production.
Comprehensive First Article Inspection (FAI): Our proactive framework establishes the foundation for impeccable excellence and unparalleled precision.
The First Article Inspection (FAI) process forms the bedrock of our quality strategy, skillfully identifying and resolving potential production challenges from the start. This proactive approach ensures issues are addressed before escalating into mass production setbacks. Our all-encompassing FAI process is instrumental in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, embodying our steadfast commitment to excellence at every stage of production.
Final Comprehensive Inspection: The ultimate protector of unparalleled quality and precision.
Before any product departs from our facility, it undergoes a thorough final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific needs. This meticulous inspection process is a testament to our unwavering dedication to quality, ensuring that every part delivered adheres to our stringent standards, thereby providing our distinguished customers with products of the highest quality.
Packaging & Shipping
Company Profile
Founded in the remarkable year of 2009, yet deeply rooted in a legacy that dates back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerges as a beacon of leadership in the sophisticated realm of high-precision component machining. Our distinguished journey is driven by a profound commitment to the craft and science of engineering, spanning over two decades of relentless innovation and unmatched precision. We have expertly established our position as forerunners in precision engineering, continually advancing the frontiers of technical research and setting groundbreaking industry benchmarks. We have nurtured an extraordinary level of technical mastery, distinguishing ourselves as market leaders with a revered reputation for exceptional excellence. Our unmatched expertise in precision medical machining services adheres unwaveringly to the strictest tolerances, achieving impeccable surface finishes. This cements our status as the premier choice in the medical sector, where our precision and reliability perpetually secure unwavering confidence and admiration.
With four strategically located production bases, in the dynamic and bustling hubs of Shenzhen and Guiyang, bolstered by an extraordinary team of over 400 highly skilled professionals, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain that flawlessly interlinks research and development, superior production, and impeccable delivery. This ensures we not only meet but surpass the diverse demands of our clientele with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to undertake the most intricate and demanding machining challenges, reinforcing our esteemed reputation for excellence and pioneering 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)