Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we proudly uphold the highest standards of excellence. Our unwavering dedication to both the art and science of precision manufacturing ensures we deliver nothing short of perfection. Our commitment to quality craftsmanship and technological prowess sets us apart, ensuring unmatched results in every component we create. Our unparalleled expertise leads the way in the realm of precision engineering. We navigate the prestigious field of superior component manufacturing with remarkable skill and refined finesse, ensuring excellence at every turn. As pioneers of innovation, we set the benchmark in designing and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions are seamlessly integrated across a broad spectrum of industries, satisfying diverse demands in numerous applications such as:
- Medical and Biotech: Providing impeccably engineered, ultra-high-precision components alongside revolutionary solutions, tailored for the forefront of advanced medical technologies.
- Semiconductors: Elevating chip fabrication and associated equipment with indispensable, critical components that drive unparalleled progress and enhanced efficiency.
- New Energy: Playing an essential role in accelerating the innovative and sustainable development of next-generation energy equipment, shaping the future of energy solutions.
- Automotive: Delivering essential components that spearhead innovation within the automotive industry, advancing the evolution of intelligent and electric vehicles.
Main Products
- Our expertly crafted non-standard customized components exemplify the pinnacle of excellence. Serving key sectors such as medical, automation, semiconductor, and automotive industries, we provide 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 driven by an impressive ensemble of over 300 of the industry's most cutting-edge and sophisticated machinery units. This vast and varied collection of state-of-the-art equipment ensures we consistently lead the charge in innovation and adaptability. By continually providing groundbreaking solutions, we set the industry benchmark for excellence, spearheading the pursuit of unmatched precision and superior quality. These Top-Tier Branded Our avant-garde machinery units are the backbone of our precision-driven manufacturing process, forming the critical infrastructure that supports our stringent production standards. With these advanced tools, we refine and optimize our manufacturing strategies to unfailingly deliver exceptional outcomes. Harnessing our top-tier machines, we skillfully navigate complex and demanding machining requirements across a broad spectrum of industries, achieving an unparalleled level of precision and efficiency. Our extensive capabilities ensure steadfast alignment with the highest quality standards while offering bespoke customization, meticulously crafted to not just meet but exceed the unique needs of our valued clients, far surpassing their highest expectations.
- With a distinguished 20-year legacy, we draw upon a vast wellspring of manufacturing experience seamlessly integrated with comprehensive technical expertise and process acumen. This harmonious amalgamation guarantees not only superior quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that not only surpass 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: At the pinnacle of innovation and precision engineering, we transcend industry expectations with cutting-edge methodologies. We redefine the zenith of quality benchmarks, setting unprecedented standards at each juncture.
Every raw material entering our avant-garde warehouse is subject to exhaustive scrutiny, establishing a new echelon in quality assurance. Our comprehensive regimen encompasses thorough chemical composition analysis and exacting physical property evaluations. We mandate our suppliers furnish a Certificate of Origin alongside a verified Declaration of Conformity, ensuring only top-tier materials fuel our state-of-the-art medical machining services. This meticulous validation process fortifies the integrity and purity of materials, perfectly aligned with our unwavering commitment to superior quality.
Unyielding In-Process Quality Control: Driven by relentless vigilance and unparalleled attention to detail, our pursuit of perfection remains unwavering and intensely focused.
Throughout the intricate machining odyssey, each component is meticulously scrutinized to guarantee dimensions and tolerances align with our exacting specifications. This ongoing inspection protocol is indispensable for proactively identifying and intercepting potential discrepancies, halting the progression of any non-conforming components. Through this diligent strategy, we substantially diminish the risk of generating substandard products, ensuring that exceptional quality is consistently maintained throughout every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework lays the groundwork for impeccable excellence and unparalleled precision.
Our First Article Inspection (FAI) procedure forms the cornerstone of our quality strategy, proficiently identifying and resolving potential production challenges from the outset. This proactive approach ensures that issues are mitigated before they evolve into large-scale production obstacles. This all-encompassing FAI process is pivotal in minimizing quality risks, ensuring our products consistently reach the zenith of standards, embodying our unwavering commitment to excellence throughout every production phase.
Thorough and Detailed Comprehensive Final Inspection: The ultimate bastion of extraordinary quality and precision.
Before any product departs our facility, it undergoes an exhaustive and detailed comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This meticulous inspection underscores our unwavering dedication to quality, ensuring each part delivered conforms to our stringent standards, thereby providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, with our origins reaching back to the foundational era of 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a distinguished leader in the intricate world of high-precision component machining. Embarking on an esteemed journey, fueled by a deep-seated passion for the art and science of engineering, our story 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 that captivate the global market. 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 and impeccable craftsmanship. This extraordinary dedication solidifies our position as the leading choice in the medical sector, where our precision and reliability continue to garner unwavering trust and admiration from a global client base.
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, equipped with the latest technological advancements, are fully prepared to tackle the most complex and challenging machining tasks, reinforcing our prestigious reputation for excellence and groundbreaking innovation in the industry.
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)