Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are committed to upholding the pinnacle of excellence in the industry. With a steadfast dedication to both the artistry and precision of mechanical manufacturing, we consistently deliver perfection. Our devotion to superior craftsmanship and cutting-edge technology distinguishes us, ensuring that each component we produce meets the highest standards of quality and innovation. Our unparalleled expertise is a beacon in the world of precision engineering. We expertly navigate the esteemed domain of superior component manufacturing with exceptional skill and polished finesse, guaranteeing excellence with every endeavor. As trailblazers in innovation, we set new standards in the creation and implementation of groundbreaking intelligent automation equipment. Our cutting-edge solutions are seamlessly integrated across a vast array of industries, adeptly meeting the diverse needs and applications, which include:
- Medical and Biotech: Offering exquisitely engineered, ultra-high-precision components alongside transformative solutions, meticulously crafted for the vanguard of advanced medical technologies.
- Semiconductors: Advancing chip fabrication and related equipment with essential, critical components that drive remarkable progress and boost efficiency to new heights.
- New Energy: Serving a crucial role in accelerating the innovative and sustainable development of next-generation energy equipment, shaping a brighter future for energy solutions.
- Automotive: Providing indispensable components that lead innovation in the automotive industry, catalyzing the evolution of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components represent the zenith of excellence. Serving critical sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that endures through time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are energized by a formidable assembly of over 300 of the industry's most advanced and sophisticated machinery units. This expansive and diverse repertoire of state-of-the-art equipment ensures we consistently maintain a stronghold at the forefront of innovation and adaptability. By persistently delivering groundbreaking solutions, we establish the industry standard for excellence, leading the charge in achieving unparalleled precision and superior quality. These Top-Tier Branded Our cutting-edge machinery units serve as the backbone of our precision-focused manufacturing process, forming the essential infrastructure that supports our rigorous production standards. With these state-of-the-art tools, we refine and perfect our manufacturing strategies to consistently deliver exceptional results. By harnessing our top-tier machines, we masterfully carry out intricate and demanding machining tasks across a vast range of industries, reaching an unparalleled pinnacle of precision and efficiency. Our broad capabilities ensure unwavering compliance with the highest quality standards, while offering tailor-made customization expertly crafted to not only meet but astoundingly exceed the unique demands of our distinguished clients, far outstripping their highest expectations.
- With an illustrious 20-year legacy, we draw upon a vast wellspring of manufacturing experience flawlessly integrated with comprehensive technical expertise and process acumen. This harmonious blend assures not just superior quality but also trailblazing innovation. We empower ourselves to consistently deliver extraordinary products that not only exceed expectations but also set new standards of excellence in 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 and Rigorous Incoming Material Inspection: Standing at the cutting-edge of innovation and precision, we effortlessly transcend industry standards with our revolutionary methodologies. We are not just meeting benchmarks; we are redefining them, creating the gold standard of quality at every turn.
Our state-of-the-art warehouse is the gateway where only the finest materials are allowed entry, subject to our stringent evaluation that heralds a new era in quality assurance. With a comprehensive chemical and physical analysis, we demand excellence from our suppliers, insisting on a Certificate of Origin and verified Declaration of Conformity. This rigorous scrutiny is our shield, ensuring that our advanced medical machining services are built on the foundation of purity and integrity, echoing our steadfast commitment to unparalleled quality.
Unyielding In-Process Quality Control: With an unwavering eye for detail and relentless vigilance, we meticulously pursue perfection with a laser-focused approach, ensuring excellence at every step.
Throughout the intricate journey of machining, each component undergoes meticulous scrutiny to ensure that every dimension and tolerance align perfectly with our exacting specifications. This continuous inspection regime is vital in preemptively capturing and rectifying potential flaws, thereby preventing any non-conforming parts from progressing. Our vigilant strategy not only reduces the risk of inferior production but steadfastly maintains exceptional quality across every stage of production, guaranteeing consistency and excellence.
Proactive and Comprehensive First Article Inspection (FAI): Our robust preventive framework is the cornerstone of achieving impeccable excellence and unmatched precision.
The First Article Inspection (FAI) process is our strategic linchpin, expertly pinpointing and resolving production challenges before they become obstacles. This proactive measure is crucial in mitigating risks before they manifest during mass production. Our all-encompassing FAI process is essential in sustaining quality superiority, ensuring our products continually achieve the highest standards, reflecting our unwavering dedication to excellence throughout every phase of production.
Thorough and Detailed Comprehensive Final Inspection: This ultimate safeguard ensures unmatched quality and precision, epitomizing our dedication to excellence.
Before departing our facility, every product is subjected to an exhaustive final inspection - a rigorous check that spans dimensions, aesthetics, performance, and customer-specific requirements. This meticulous scrutiny epitomizes our unwavering commitment to quality, ensuring each part delivered meets our exacting standards, thus empowering our esteemed customers with superior quality products, every time.
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. stands as a distinguished leader in the intricate world of high-precision component machining. Our esteemed journey, fueled by a deep-seated passion for the art and science of engineering, spans over two decades of relentless innovation and precision. We have expertly carved our niche as pioneers in precision engineering, consistently pushing the boundaries of technical research and setting unprecedented industry standards. We have cultivated an unparalleled level of technical expertise, setting ourselves apart as market leaders with an esteemed reputation for outstanding excellence. Our unmatched proficiency in precision medical machining services consistently adheres to the most stringent tolerances, delivering flawless surface finishes. This solidifies our position as the leading choice in the medical sector, where our precision and reliability continue to garner unwavering trust and admiration.
With four strategically positioned production bases, in the vibrant and thriving centers of Shenzhen and Guiyang, supported by an inspiring team of over 400 highly skilled employees, Donghui has meticulously developed a comprehensive, vertically integrated industry chain that seamlessly connects research and development, top-tier production, and flawless delivery. This ensures we meet and exceed the diverse needs of our clients with remarkable efficiency and unparalleled quality. Our cutting-edge 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)