Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are deeply rooted in a domain where excellence resonates with innovation. Our unwavering allegiance to precision manufacturing transforms each creation into a masterpiece of impeccable perfection. With an unwavering commitment to quality craftsmanship and cutting-edge technology, we stand out in the industry, delivering extraordinary results with each meticulously crafted component. Our unmatched expertise reigns supreme in the realm of precision engineering. Masterfully navigating the esteemed craft of component manufacturing, we exhibit remarkable dexterity and sophisticated finesse, ensuring excellence at every stage of production. As trailblazers of innovation, we set the benchmark in crafting and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a multitude of industries, expertly addressing diverse demands in numerous applications, including:
- Medical and Biotech: Introducing impeccably engineered, ultra-high-precision components and transformative solutions, meticulously tailored for the forefront of advanced medical technologies.
- Semiconductors: Revolutionizing chip fabrication and related equipment with essential, critical components that propel extraordinary advancements and enhance efficiency.
- New Energy: Playing an essential role in advancing the innovative and sustainable development of next-generation energy equipment, shaping the future of energy solutions.
- Automotive: Providing key components that fuel innovation within the automotive industry, propelling the evolution of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components represent the zenith of excellence. Serving crucial sectors such as medical, automation, semiconductor, and automotive industries, we offer unmatched precision and superior quality that stand the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are empowered by an impressive fleet of over 300 of the industry's most sophisticated machinery units. This extensive and advanced collection ensures we remain at the forefront of innovation and adaptability. By consistently delivering groundbreaking solutions, we set the industry's standard for excellence, driving performance towards unparalleled precision and superior quality. These Top-Tier Branded Our pioneering machinery units form the foundation of our precision-focused manufacturing process, serving as the essential infrastructure that supports our rigorous production standards. Utilizing these state-of-the-art tools, we continually refine and enhance our manufacturing strategies, achieving outstanding results with remarkable consistency. By employing our high-caliber machines, we expertly execute complex and challenging machining requirements across a diverse range of industries, attaining an unmatched level of precision and efficiency. Our extensive capabilities ensure unwavering adherence to the highest quality standards while delivering bespoke customization. This not only meets but often exceeds the unique needs of our esteemed clients, going far beyond their highest expectations.
- With a prestigious 20-year legacy, we draw from a deep well of manufacturing experience, seamlessly combined with comprehensive technical expertise and process mastery. This harmonious blend guarantees not only exceptional quality but also pioneering innovation. We enable ourselves to consistently deliver extraordinary products that exceed expectations and establish new standards 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 and Rigorous Incoming Material Inspection: In the realm of innovation and precision, we not only meet but exceed industry expectations by implementing unparalleled methodologies. We proudly lead the industry in crafting superior quality benchmarks, setting revolutionary standards at every phase of production.
Every raw material entering our state-of-the-art warehouse undergoes unparalleled scrutiny, setting a benchmark in quality assurance. Our exhaustive approach features intricate chemical composition analysis and precise physical property assessments. We require suppliers to provide a Certificate of Origin and a verified Declaration of Conformity, ensuring the use of premium materials in our cutting-edge medical machining services. This meticulous validation process preserves the integrity and purity of materials, perfectly aligning with our unwavering commitment to superior quality.
Unyielding In-Process Quality Control: With relentless vigilance and meticulous attention, we pursue perfection with unwavering dedication.
During the intricate machining process, every component undergoes meticulous scrutiny to ensure dimensional precision and compliance with our stringent specifications. This ongoing inspection is vital for proactively identifying and intercepting potential defects, preventing progression of non-conforming parts. Through this diligent strategy, we significantly mitigate the risk of producing substandard goods, consistently ensuring exceptional quality is upheld throughout every production stage.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the cornerstone of immaculate excellence and unparalleled precision.
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach guarantees issues are addressed before escalating into mass production obstacles. This comprehensive FAI process is essential in minimizing quality risks, ensuring our products consistently achieve the highest standards, embodying our unwavering commitment to excellence at every stage of production.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of exceptional quality and precision.
Before any product leaves our facility, it undergoes thorough and comprehensive final inspection. This rigorous evaluation includes dimensions, visual appeal, performance, and customer-specific requirements. This meticulous inspection underscores our steadfast dedication to quality, ensuring every part delivered meets our exacting standards, thus providing our esteemed customers with the highest quality products.
Packaging & Shipping
Company Profile
Established in the distinguished year of 2009, with roots dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. illuminates the sophisticated realm of high-precision component machining. Our illustrious journey, fueled by a profound passion for the intricate art and rigorous science of engineering, spans over two decades of relentless innovation and masterful precision. We have deftly etched our place as trailblazers in precision engineering, continuously advancing the frontiers of technical research and setting groundbreaking benchmarks within the industry. We have meticulously cultivated an exceptional caliber of technical acumen, positioning ourselves as market vanguards with a stellar reputation for unparalleled excellence. Our unrivaled expertise in precision medical machining services consistently meets the most exacting tolerances, delivering flawless surface finishes. This cements our status as the preeminent choice in the medical sector, where our precision and steadfast reliability continue to earn unwavering trust and esteem.
With four strategically located production bases, in the dynamic and bustling centers of Shenzhen and Guiyang, bolstered by an impressive team of over 400 highly skilled professionals, Donghui has intricately developed a comprehensive, vertically integrated industry chain that flawlessly links research and development, superior production, and impeccable delivery. This ensures we consistently meet and surpass the diverse needs of our clients with extraordinary efficiency and unmatched quality. Our cutting-edge facilities are fully equipped to undertake the most complex and demanding machining tasks, 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)