Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are fervently devoted to mastering the art of precision manufacturing. Where age-old craftsmanship meets state-of-the-art innovation, we forge a new era of excellence. Our unwavering pursuit of perfection ensures each creation is a testament to flawless artistry. Through our dedicated commitment to quality and the latest technology, we set ourselves apart, delivering extraordinary, intricately crafted components that stand as a pinnacle of precision. With unrivaled expertise in precision engineering, we set the gold standard for component excellence. Our remarkable agility and sophisticated finesse guarantee superior quality in every aspect of our operations, cementing our status as industry pioneers and leaders. As pioneers of innovation, we elevate the benchmark in designing and delivering groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly integrate into a wide array of industries, adeptly addressing the unique challenges of diverse applications, including:
- Medical and BiotechOur meticulously crafted, ultra-high-precision components and transformative solutions are at the forefront of advanced medical technologies, establishing new standards of excellence within the field.
- SemiconductorsBy providing essential, critical components, we propel chip fabrication and related equipment, driving remarkable advancements and boosting efficiency in the semiconductor industry.
- New EnergyWe are key contributors to the innovative and sustainable evolution of next-generation energy equipment, playing a crucial role in shaping the future landscape of energy solutions.
- AutomotiveSupplying vital components, we are at the forefront of innovation within the automotive industry. Our contributions further the development of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Serving essential sectors such as medical, automation, semiconductor, and automotive industries, we offer unparalleled precision and superior quality that withstands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are driven by a remarkable fleet of over 300 of the industry's most advanced machinery units. This extensive, cutting-edge collection not only secures our leadership in innovation but also showcases our unmatched adaptability. By consistently delivering pioneering solutions, we set the industry benchmark for excellence, continuously striving for extraordinary precision and exceptional quality. These Top-Tier Branded Our pioneering machinery units are the foundation of our precision-focused manufacturing process, forming the essential infrastructure that upholds our steadfast production standards. Through these state-of-the-art tools, we are able to continually refine and enhance our manufacturing methods, achieving outstanding results on a consistent basis. With our high-caliber machines, we meticulously execute complex and demanding machining tasks across various industries, achieving unprecedented precision and efficiency. Our extensive capabilities ensure strict compliance with the highest quality standards while offering bespoke customization that consistently meets and surpasses the unique needs of our valued clients, greatly exceeding their highest expectations.
- Celebrating a prestigious 20-year legacy, we draw upon a wealth of manufacturing experience intricately intertwined with profound technical expertise and process mastery. This harmonious synergy ensures not only outstanding quality but also groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and set new industry standards of excellence.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Exquisite and Exacting Incoming Material Inspection: In the remarkable and ever-evolving space where breakthrough innovation intersects with precision, we don't merely meet the high-flying expectations of our industry; we elevate them with unmatched methodologies. We are proud to lay the groundwork for supreme quality standards, setting revolutionary benchmarks that resonate deeply throughout the entire continuum of our production process.
Every raw material entering our state-of-the-art warehouse is subjected to an exhaustive evaluation, setting the benchmark for quality assurance. Our comprehensive approach includes detailed chemical composition analysis and rigorous assessments of physical properties. Suppliers are required to provide a Certificate of Origin along with a verified Declaration of Conformity, ensuring that only the highest quality materials are reserved for our advanced medical machining services. This meticulous validation process strengthens the integrity and purity of our materials, seamlessly aligning with our steadfast commitment to top-tier quality.
Uncompromising In-Process Quality Control: With unyielding vigilance and a meticulous eye for detail, we pursue perfection with a steadfast dedication to quality and precision. This process ensures our standards of excellence are not only met but consistently exceeded.
Throughout the meticulous machining process, each component undergoes precise scrutiny to ensure dimensions and tolerances align exactly with our stringent specifications. This ongoing inspection protocol is vital for proactively identifying and intercepting potential defects, thereby preventing any non-conforming parts from advancing. Through this diligent strategy, we significantly reduce the risk of manufacturing substandard goods, consistently upholding exceptional quality at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of flawless excellence, embodying unparalleled precision and thoroughness.
The First Article Inspection (FAI) process forms the foundation of our quality strategy, expertly identifying and resolving potential production challenges from the very beginning. This proactive approach ensures issues are addressed before escalating into mass production impediments. Our thorough FAI process is indispensable in minimizing quality risks, ensuring our products consistently achieve the highest standards, reflecting our unwavering dedication to excellence throughout the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, ensuring the delivery of perfection in every facet of our craftsmanship.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation covers dimensions, visual appeal, performance, and customer-specific requirements. This scrupulous inspection highlights our steadfast dedication to quality, ensuring every delivered part meets our exacting standards, thus providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the remarkable year of 2009, though our roots reach back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon in the elite realm of high-precision component machining. Our illustrious journey has been driven by an unwavering passion for the intricate artistry and exacting science of engineering, spanning over two decades of tireless innovation and exceptional precision. We have skilfully carved our name as trailblazers in precision engineering, continually advancing technical research and setting groundbreaking standards in the industry, consistently exceeding expectations in both innovation and unparalleled quality. We have painstakingly honed an extraordinary level of technical expertise, establishing ourselves as market leaders with an esteemed reputation for unmatched excellence. Our proficiency in precision medical machining services is unrivaled, consistently achieving the most stringent tolerances and delivering flawless surface finishes. This unwavering dedication confirms our status as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us enduring trust and esteem, making us the foremost name for superior machining solutions.
With four strategically located production facilities, in the dynamic and vibrant centers of Shenzhen and Guiyang, and supported by an impressive team of over 400 highly skilled specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This seamlessly connects pioneering research and development, superior production, and impeccable delivery. Our operations ensure we consistently meet and exceed the diverse demands of our clients with remarkable efficiency and unrivaled quality. Our cutting-edge facilities are masterfully designed to handle the most intricate and demanding machining tasks, enhancing our esteemed reputation for excellence and revolutionary 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)