Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are committed to perfecting the craft of precision manufacturing. Merging traditional craftsmanship with advanced innovation, we herald a new era of excellence. Our relentless dedication to perfection ensures each product exemplifies flawless artistry. Through our steadfast commitment to quality and cutting-edge technology, we distinguish ourselves, offering extraordinary, intricately crafted components that epitomize precision. With unparalleled expertise in precision engineering, we set the industry benchmark for component excellence. Our exceptional agility and sophisticated finesse ensure superior quality across every facet of our operations, solidifying our reputation as industry pioneers and leaders. As leaders in innovation, we raise the bar in designing and delivering revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly blend into various industries, expertly addressing the specific challenges of diverse applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and groundbreaking solutions lead advanced medical technologies, setting new benchmarks of excellence in the field.
- SemiconductorsBy delivering essential, critical components, we advance chip fabrication and related equipment, driving significant progress and enhancing efficiency in the semiconductor industry.
- New EnergyWe are pivotal contributors to the innovative and sustainable evolution of next-generation energy equipment, playing a crucial role in shaping the future landscape of energy solutions.
- AutomotiveProviding vital components, we lead innovation within the automotive industry. Our contributions enhance the development of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Catering to essential sectors such as medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and superior quality that stands the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are propelled by a phenomenal fleet of over 300 of the industry's most sophisticated machinery units. This expansive and avant-garde assemblage ensures our dominance in innovation and adaptability. By consistently delivering pioneering solutions, we establish the industry gold standard for excellence, persistently advancing toward unparalleled precision and exemplary quality. These Top-Tier Branded Our trailblazing machinery units are the cornerstone of our precision-centric manufacturing process, forming the essential infrastructure that supports our steadfast production benchmarks. With these state-of-the-art tools, we continually refine and elevate our manufacturing techniques to consistently achieve exceptional results. With our superior machines, we deftly execute intricate and challenging machining tasks across a myriad of industries, achieving unmatched precision and efficiency. Our extensive capabilities ensure rigorous compliance with the highest quality standards while offering custom-tailored solutions that not only satisfy but consistently exceed the unique demands of our valued clients, far outstripping their highest expectations.
- Celebrating an esteemed 20-year legacy, we draw on a rich tapestry of manufacturing experience intricately interwoven with profound technical expertise and process mastery. This harmonious blend assures not only remarkable quality but also groundbreaking innovation. We empower ourselves to perpetually deliver extraordinary products that surpass expectations and establish new industry paradigms 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 dynamic arena where innovation meets precision, we don't just fulfill the towering expectations of our industry; we transcend them with unparalleled methodologies. We proudly set the stage for superior quality benchmarks, establishing revolutionary standards reverberating throughout the entire spectrum of our production journey.
Every raw material that enters our cutting-edge warehouse is subjected to an exhaustive evaluation, setting the gold standard in quality assurance. Our comprehensive approach encompasses meticulous chemical composition analysis and rigorous physical property assessments. Suppliers must provide a Certificate of Origin along with a verified Declaration of Conformity, ensuring that only the finest materials are reserved for our state-of-the-art medical machining services. This meticulous validation process fortifies the integrity and purity of materials, seamlessly aligning with our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering eye for detail, we pursue perfection with steadfast dedication and commitment. This process ensures that our standards of excellence are consistently met and exceeded.
Throughout the intricate machining process, each component undergoes meticulous scrutiny to assure dimensions and tolerances align precisely with our stringent specifications. This ongoing inspection protocol is crucial 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 producing substandard goods, consistently ensuring exceptional quality is maintained at every phase of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of immaculate excellence, embodying unrivaled precision and thoroughness.
The First Article Inspection (FAI) process forms the bedrock of our quality strategy, adeptly identifying and resolving potential production challenges from the outset. This anticipatory approach ensures issues are addressed before they escalate into mass production impediments. Our thorough FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards, embodying our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, ensuring the delivery of perfection.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation encompasses dimensions, visual appeal, performance, and customer-specific requirements. This scrupulous inspection underscores our steadfast dedication to quality, ensuring every delivered part meets our exacting standards, thereby providing our esteemed customers with products of the utmost caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, though our origins trace back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon of excellence in the specialized realm of high-precision component machining. Our esteemed journey has been driven by an unwavering dedication to the intricate art and precise science of engineering, spanning over two decades of relentless innovation and exceptional precision. We have masterfully carved our niche as trailblazers in precision engineering, consistently advancing technical research and setting transformative benchmarks in the industry. Our continuous pursuit of innovation and commitment to superior quality have allowed us to not only meet but exceed expectations in both realms. We have meticulously cultivated an unparalleled level of technical expertise, positioning ourselves as industry leaders with a reputation for exceptional excellence. Our unrivaled prowess in precision medical machining services consistently attains the most stringent tolerances and delivers flawless surface finishes. This unwavering commitment solidifies our status as the preferred partner in the medical sector. Our precision and steadfast reliability have garnered enduring trust and admiration, establishing us as the leading authority for superior machining solutions.
With four strategically located production facilities, nestled in the dynamic and bustling centers of Shenzhen and Guiyang, and powered by an impressive team of over 400 highly skilled specialists, Donghui has meticulously forged a comprehensive, vertically integrated industry chain. This chain seamlessly bridges cutting-edge research and development, superior production, and flawless delivery. Our operations ensure that we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are meticulously crafted to tackle the most intricate and demanding machining challenges, 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)