Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we take immense pride in adhering to the loftiest levels of excellence. Our steadfast allegiance to the mastery of precision manufacturing guarantees that we consistently deliver perfection. With an unwavering focus on quality craftsmanship and technological superiority, we distinguish ourselves by producing unmatched results in every single component we design and manufacture. Our unparalleled expertise leads the charge in the world of precision engineering. We navigate the prestigious domain of superior component manufacturing with extraordinary skill and refined elegance, ensuring excellence at every juncture. As pioneers of innovation, we define the standards in crafting and delivering revolutionary intelligent automation equipment. Our cutting-edge solutions are seamlessly woven into a vast array of industries, meeting diverse demands in countless applications such as:
- Medical and Biotech: Delivering impeccably engineered, ultra-high-precision components alongside transformative solutions, customized for the forefront of advanced medical technologies.
- Semiconductors: Enhancing chip fabrication and associated equipment with indispensable, critical components that propel unmatched progress and heightened efficiency.
- New Energy: Playing a pivotal role in expediting the innovative and sustainable development of next-generation energy equipment, shaping the future of energy solutions.
- Automotive: Providing essential components that drive innovation within the automotive industry, advancing the evolution of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components represent the zenith of excellence. Serving pivotal sectors such as medical, automation, semiconductor, and automotive industries, we deliver 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 powered by an impressive collection of over 300 of the industry's most advanced and meticulously engineered machinery units. This vast and varied assortment of cutting-edge equipment ensures we remain at the pinnacle of innovation and adaptability. By consistently delivering groundbreaking solutions, we set the gold standard for excellence, leading the way in achieving unmatched precision and exceptional quality. These Top-Tier Branded Our state-of-the-art machinery units are the backbone of our precision-focused manufacturing process, providing the essential infrastructure that supports our rigorous production standards. With these cutting-edge tools, we refine and perfect our manufacturing strategies to consistently produce outstanding results. By harnessing the power of our high-caliber machines, we skillfully execute complex and challenging machining requirements across a wide range of industries, achieving unparalleled levels of precision and efficiency. Our expansive capabilities ensure unwavering adherence to the highest quality standards, while delivering bespoke customization meticulously crafted to not only meet but exceed the unique needs of our distinguished clients, consistently surpassing their highest expectations.
- With a prestigious 20-year legacy, we draw upon a vast reservoir of manufacturing experience seamlessly integrated with comprehensive technical expertise and process knowledge. This harmonious blend guarantees not only superior quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that not only exceed expectations but also set new benchmarks 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: Leading the charge in innovation and precision, we transcend industry standards with unrivaled methodologies. Crafting the pinnacle of quality benchmarks, we forge new trails in excellence at every turn.
Every raw material entering our cutting-edge warehouse undergoes rigorous evaluation, setting a new gold standard in quality assurance. Our thorough approach encompasses in-depth chemical composition analysis and precise physical property assessment. We mandate that our suppliers furnish a Certificate of Origin and a verified Declaration of Conformity, ensuring that only top-tier materials are integrated into our advanced medical machining services. This meticulous validation process upholds the integrity and purity of materials, perfectly aligned with our unwavering commitment to superior quality.
Unyielding In-Process Quality Control: Our relentless vigilance and unmatched attention to detail fuel our pursuit of perfection with steadfast focus.
Throughout the intricate machining journey, each component is meticulously examined to guarantee that its dimensions and tolerances precisely adhere to our rigorous specifications. This ongoing inspection protocol is essential for proactively identifying and intercepting potential defects, halting the progression of any non-conforming parts. Through this diligent strategy, we significantly mitigate the risk of producing inferior goods, ensuring that exceptional quality is consistently upheld across every stage of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the foundation of impeccable excellence and unrivaled precision.
Our First Article Inspection (FAI) process is the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges from the onset. This proactive approach ensures that issues are mitigated before they evolve into mass production obstacles. This all-encompassing FAI process is crucial in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, embodying our unwavering commitment to excellence at every stage of production.
Thorough and Detailed Comprehensive Final Inspection: The ultimate vanguard of unparalleled quality and precision.
Before any product departs from our facility, it undergoes an exhaustive and comprehensive final inspection. This meticulous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our unwavering dedication to quality, ensuring every part delivered meets our exacting standards, and provides our esteemed customers with the highest quality products.
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)