Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are devoted to mastering the art of precision manufacturing, where our expertise seamlessly integrates with groundbreaking innovation. Our commitment to excellence is unyielding, ensuring that each masterpiece we fashion embodies impeccable perfection. With an unwavering focus on quality craftsmanship and state-of-the-art technology, we distinguish ourselves in the industry, delivering unmatched results with every intricately crafted component. Our unparalleled expertise in precision engineering establishes the benchmark for component manufacturing. We exhibit extraordinary dexterity and sophisticated finesse, guaranteeing excellence in every facet of our craft, positioning us as industry leaders. As trailblazers of innovation, we establish the gold standard in designing and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a myriad of industries, adeptly meeting the specific requirements in diverse applications, such as:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions are meticulously crafted for the vanguard of advanced medical technologies, setting unprecedented standards in the field.
- SemiconductorsWe elevate chip fabrication and related equipment by supplying indispensable, critical components that drive extraordinary progress and improved efficiency in the semiconductor industry.
- New EnergyWe are instrumental in driving the innovative and sustainable development of next-generation energy equipment, playing a pivotal role in shaping the future landscape of energy solutions.
- AutomotiveWe provide essential components that fuel innovation within the automotive industry, advancing the evolution of intelligent and electric vehicles, and shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components represent the zenith of excellence. Catering to critical sectors such as medical, automation, semiconductor, and automotive industries, we deliver unparalleled precision and superior quality that withstand the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are driven by an impressive fleet of over 300 of the industry's most sophisticated machinery units. This extensive and cutting-edge collection positions us at the pinnacle of innovation and adaptability. By consistently delivering groundbreaking solutions, we set the industry's benchmark for excellence, relentlessly pursuing unrivaled precision and exceptional quality. These Top-Tier Branded Our state-of-the-art machinery units form the backbone of our precision-focused manufacturing process, establishing the indispensable foundation that upholds our stringent production standards. By harnessing these advanced tools, we continually refine and enhance our manufacturing strategies to consistently achieve outstanding results. Utilizing our high-caliber machines, we expertly handle intricate and demanding machining tasks across diverse industries, achieving extraordinary levels of precision and efficiency. Our extensive capabilities ensure unwavering commitment to the highest quality standards while offering tailored customization that not only satisfies but exceeds the unique requirements of our esteemed clients, surpassing their highest expectations.
- With an illustrious 20-year legacy, we leverage a wealth of manufacturing experience seamlessly intertwined with broad technical expertise and process mastery. This harmonious synergy guarantees not only exceptional quality but also groundbreaking innovation, empowering us to consistently deliver outstanding products that exceed expectations and set 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 world of engineering innovation and precision craftsmanship, we transcend industry expectations with unrivaled methodologies. Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. leads with pioneering standards, crafting benchmarks of unparalleled quality at each stage of production.
Every raw material entering our cutting-edge warehouse is subject to a thorough evaluation, defining a new echelon in quality assurance. Our exhaustive process includes detailed chemical composition analysis and exacting physical property assessment. We mandate that suppliers provide a Certificate of Origin and a verified Declaration of Conformity, ensuring that only the finest materials are employed in our advanced medical machining services. This careful validation process preserves material integrity and purity, in perfect harmony with our unyielding dedication to superior quality.
Unyielding In-Process Quality Control: Our steadfast vigilance and meticulous attention to detail drive our pursuit of perfection with an unwavering commitment.
Throughout the sophisticated machining process, each component is meticulously examined to ensure dimensions and tolerances align with our exacting standards. This continuous inspection protocol is crucial for identifying and intercepting potential defects early, preventing the development of any non-conforming parts. Through this diligent approach, we significantly reduce the risk of producing substandard products, consistently guaranteeing that superior quality is maintained throughout every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the foundation of immaculate excellence and unparalleled accuracy.
Our First Article Inspection (FAI) process is a cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach ensures that issues are addressed before they escalate into mass production hurdles. This comprehensive FAI process is vital in minimizing quality risks, ensuring that our products consistently meet the highest standards, reflecting our unwavering commitment to excellence throughout every stage of production.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of exceptional quality and precision.
Before any product departs from our facility, it undergoes a thorough and comprehensive final inspection. This rigorous assessment encompasses dimensions, visual aesthetics, performance, and customer-specific requirements. This meticulous inspection underscores our unwavering dedication to quality, ensuring each part delivered meets our stringent standards, thereby providing our esteemed customers with the highest caliber 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. stands as a luminary in the sophisticated realm of high-precision component machining. Our illustrious journey, fueled by a deep-seated 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 establishing groundbreaking benchmarks within the industry. We have meticulously nurtured an exceptional caliber of technical acumen, positioning ourselves as market vanguards with a sterling reputation for unparalleled excellence. Our unrivaled expertise in precision medical machining services consistently meets the most exacting tolerances, delivering flawless surface finishes that cement 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, nestled in the dynamic and bustling centers of Shenzhen and Guiyang, and backed by an impressive team of over 400 highly skilled professionals, Donghui has intricately developed a comprehensive, vertically integrated industry chain that seamlessly links cutting-edge 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 state-of-the-art 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)