Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately committed to the mastery of precision manufacturing. In a harmonious blend of traditional craftsmanship and cutting-edge innovation, we usher in a new era of unparalleled excellence. Our relentless pursuit of perfection ensures that each piece we create is a testament to impeccable artistry. Through our steadfast dedication to quality and cutting-edge technology, we distinguish ourselves, delivering extraordinary, intricately designed components that epitomize the pinnacle of precision. With unmatched expertise in precision engineering, we set the industry benchmark for component excellence. Our exceptional agility and refined finesse ensure superior quality across every facet of our operations, solidifying our position as industry trailblazers and leaders. As frontrunners in innovation, we elevate the standards in designing and delivering revolutionary intelligent automation equipment. Our cutting-edge solutions are seamlessly integrated into a multitude of industries, skillfully addressing the specific challenges of diverse applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and revolutionary solutions are at the vanguard of advanced medical technologies, setting new benchmarks of excellence in the field.
- SemiconductorsThrough the provision of essential, critical components, we drive chip fabrication and associated equipment, spearheading remarkable advancements 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.
- AutomotiveBy supplying vital components, we are at the forefront of innovation within the automotive industry. Our contributions advance the development of intelligent and electric vehicles, defining the future of mobility.
Main Products
- Our expertly designed non-standard customized components epitomize excellence. Serving critical sectors such as medical, automation, semiconductor, and automotive industries, we offer unparalleled precision and superior quality that endures the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are proudly driven by an extraordinary fleet of over 300 of the industry's most advanced machinery units. This extensive, cutting-edge collection not only guarantees our leadership in innovation but also our unmatched adaptability. By constantly delivering groundbreaking solutions, we set the industry benchmark for excellence, always striving for unprecedented precision and exemplary quality. These Top-Tier Branded Our pioneering machinery units form the very foundation of our precision-focused manufacturing process and are the critical infrastructure that upholds our unwavering production standards. Through these state-of-the-art tools, we continually advance and refine our manufacturing methods to achieve consistently outstanding results. With our high-caliber machines, we accurately and meticulously execute complex and demanding machining tasks across diverse industries, achieving unparalleled precision and efficiency. Our expansive capabilities ensure strict adherence to the highest quality standards while offering bespoke customization that meets and consistently exceeds the distinct needs of our cherished clients, far surpassing their loftiest expectations.
- Celebrating a prestigious 20-year legacy, we draw upon a wealth of manufacturing experience harmoniously blended with deep technical expertise and process mastery. This synergy guarantees not only outstanding quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and establish 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: Within the dynamic arena where innovation seamlessly intersects with precision, we do not merely meet the soaring expectations of our industry; we transcend them with unmatched methodologies. We proudly set the stage for superior quality benchmarks, establishing revolutionary standards that resonate throughout the entire spectrum of our production journey, ensuring every step embodies excellence.
Every raw material that graces our state-of-the-art warehouse undergoes an exhaustive evaluation, setting the gold standard in quality assurance. Our comprehensive approach encompasses detailed chemical composition analysis and rigorous physical property assessments. Suppliers are mandated to present a Certificate of Origin accompanied by a verified Declaration of Conformity, ensuring that only the finest materials are reserved for our cutting-edge medical machining services. This meticulous validation process fortifies the integrity and purity of materials, seamlessly aligning with our unwavering commitment to superior quality, reinforcing our promise of excellence.
Uncompromising In-Process Quality Control: With relentless vigilance and an unwavering eye for detail, we pursue perfection with steadfast dedication and commitment. This rigorous process guarantees that our standards of excellence are consistently met and exceeded, ensuring superior quality at every step.
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 mitigate the risk of producing substandard goods, consistently ensuring exceptional quality is upheld at every phase of production, promising unparalleled precision.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of immaculate excellence, embodying unrivaled precision and thoroughness, ensuring that every product meets the pinnacle of quality standards.
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, setting the stage for flawless execution.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, ensuring the delivery of perfection in every product.
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 that every delivered part meets our exacting standards. This unwavering commitment provides our esteemed customers with products of the utmost caliber, fulfilling the promise of excellence.
Packaging & Shipping
Company Profile
In the esteemed year of 2009, although our roots stretch back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon of excellence in the sophisticated realm of high-precision component machining. Our illustrious journey, driven by an unwavering passion for the intricate art and exacting science of engineering, spans over two decades of relentless innovation and exceptional precision. We have proudly etched our legacy as trailblazers in precision engineering, consistently advancing technical research and setting revolutionary standards within the industry. Our ongoing commitment ensures that we continually exceed expectations through groundbreaking innovation and unparalleled quality. We have meticulously developed an unparalleled level of technical expertise, positioning ourselves as market leaders with a prestigious reputation for unmatched excellence. Our proficiency in precision medical machining services is unrivaled, consistently achieving the strictest tolerances and delivering flawless surface finishes. This unwavering dedication solidifies our standing as the preferred choice in the medical sector. Our precision and steadfast reliability have garnered us enduring trust and respect, establishing us as the foremost authority for superior machining solutions.
With four strategically located production facilities, situated in the dynamic and bustling cities of Shenzhen and Guiyang, and supported by an exceptional team of over 400 highly skilled specialists, Donghui has masterfully crafted a comprehensive, vertically integrated industry chain. This chain seamlessly unites cutting-edge research and development, superior production processes, and flawless delivery. Our operations ensure we consistently meet and surpass the diverse requirements of our clients with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are expertly designed to tackle the most intricate and demanding machining tasks, reinforcing our prestigious 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)