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 powered by a formidable lineup of over 300 of the industry's most advanced machinery units. This extensive array of state-of-the-art equipment ensures we maintain an unyielding position at the forefront of innovation and adaptability. By consistently delivering groundbreaking solutions, we set the industry standard for excellence, leading the way in achieving unmatched precision and superior quality. These Top-Tier Branded Machines Our cutting-edge machinery serves as the cornerstone of our precision-focused manufacturing process, forming the essential infrastructure that upholds our rigorous production standards. With these state-of-the-art tools, we refine and perfect our manufacturing strategies, consistently delivering results that redefine excellence. Harnessing our high-caliber machines, we skillfully navigate complex and challenging machining requirements across a broad spectrum of industries, achieving precision and efficiency levels that are second to none. Our expansive capabilities ensure unwavering adherence to the highest quality benchmarks, delivering customized solutions meticulously crafted to not only meet but exceed the unique needs of our esteemed clients, surpassing their highest expectations.
- With an illustrious 20-year legacy, we tap into a vast reservoir of manufacturing experience seamlessly integrated with comprehensive technical expertise and process acumen. This harmonious blend ensures not only superior quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and 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: At the forefront of innovation and precision, our commitment transcends industry norms as we deploy unparalleled methodologies. We are not just meeting standards; we are crafting the pinnacle of quality benchmarks, setting new standards in excellence at every step.
Each raw material entering our cutting-edge warehouse is subjected to a stringent evaluation process, setting new benchmarks in quality assurance. Our comprehensive approach includes thorough chemical composition analysis and precise physical property assessments. We mandate our suppliers to furnish a Certificate of Origin alongside a verified Declaration of Conformity, ensuring that only the finest materials are utilized in our advanced medical machining services. This meticulous validation guarantees the integrity and purity of materials, perfectly harmonizing with our steadfast commitment to superior quality.
Unyielding In-Process Quality Control: Our relentless vigilance and unrivaled attention to detail fuel our quest for perfection with unwavering dedication.
Throughout the intricate machining journey, every component is meticulously scrutinized to confirm that dimensions and tolerances align precisely with our stringent specifications. This continuous inspection protocol is pivotal in proactively detecting and intercepting potential defects, effectively halting the progression of any non-conforming parts. Through this diligent strategy, we drastically reduce the risk of producing substandard goods, ensuring that exceptional quality is consistently maintained throughout every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the cornerstone of unparalleled excellence and precision.
Our First Article Inspection (FAI) process is integral to our quality strategy, skillfully identifying and resolving potential production challenges from the outset. This proactive approach ensures issues are mitigated before they evolve into mass production hurdles. This all-encompassing FAI process is crucial in minimizing quality risks, guaranteeing our products consistently reach the zenith of standards, embodying our unwavering commitment to excellence at every production stage.
Thorough and Detailed Comprehensive Final Inspection: The ultimate guarantee of unrivaled quality and precision.
Before any product departs our facility, it undergoes an exhaustive and comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This meticulous inspection underscores our steadfast dedication to quality, ensuring every part delivered meets our stringent standards, thus providing our esteemed customers with only the highest quality products.
Packaging & Shipping
Company Profile
Established in the illustrious year of 2009, with our origins tracing back to the innovative beginnings of 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. proudly stands as a distinguished leader in the intricate realm of high-precision component machining. Our esteemed journey is powered by a profound passion for the art and science of engineering, spanning over two decades of relentless innovation and precision craftsmanship. We have expertly carved our niche as pioneers in precision engineering, consistently pushing the boundaries of technical research and setting unprecedented industry benchmarks. We have meticulously 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 that cater to the exacting demands of the medical sector. This solidifies our position as the leading choice 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)