Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we stand at the intersection of traditional craftsmanship and modern innovation, passionately dedicated to the art of precision manufacturing. Our quest for perfection is relentless, as we herald a new era of unmatched excellence. By leveraging cutting-edge technologies and steadfastly upholding the highest standards of quality, we craft components that are not just meticulously engineered, but also a tribute to exquisite artistry, distinguishing ourselves with unparalleled creations. As masters in precision engineering, we set the gold standard for component excellence. Our remarkable agility and sophisticated finesse manifest in exceptional quality, underpinning every aspect of our operations, and reinforcing our role as pioneering leaders within the industry. Innovative trailblazers, we set new benchmarks in designing and delivering revolutionary intelligent automation equipment. Our visionary solutions seamlessly integrate across diverse industries, adeptly addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously crafted, ultra-high-precision components are at the forefront of advanced medical technologies, setting new standards of excellence and leading the charge in this dynamic field.
- SemiconductorsDeployed at the cutting edge of the semiconductor industry, our critical components drive advances in chip fabrication and related technologies, propelling efficiency and innovation to new heights.
- New EnergyPushing the frontier of sustainable energy solutions, we play a critical role in the next-generation energy equipment's innovative evolution, shaping the future landscape of energy technology.
- AutomotiveAs leaders in automotive innovation, our essential components are pivotal in advancing intelligent and electric vehicle development, driving the future of mobility with precision and vision.
Main Products
- Our non-standard customized components are the epitome of precision and excellence, serving crucial sectors such as medical, automation, semiconductor, and automotive industries. We deliver superior quality that not only meets but exceeds expectations, enduring the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are energized by an extraordinary fleet of over 300 state-of-the-art machinery units, positioning us as a beacon of industrial innovation. This grand assembly not only defines industry benchmarks but also showcases our unwavering leadership in adaptability and precision. By consistently delivering revolutionary solutions, we are the harbingers of industry excellence, persistently striving for supreme precision and outstanding quality. These Top-Tier Branded At the heart of our precision-focused manufacturing lies our trailblazing machinery units, serving as the pivotal foundation of our steadfast production ethos. These cutting-edge tools are instrumental in our perpetual pursuit to refine and amplify manufacturing processes, guaranteeing results that consistently set the bar higher. With our top-tier machinery, we masterfully navigate complex and demanding machining tasks across diverse industries, achieving precision and efficiency that remains unmatched. Our vast capabilities assure adherence to the most rigorous quality standards, while offering bespoke solutions that not only meet but consistently exceed the unique aspirations of our cherished clients, redefining their expectations.
- Celebrating an illustrious 20-year journey, we draw upon a profound wellspring of manufacturing expertise intertwined with deep-seated technical acumen and process mastery. This harmonious blend not only guarantees superior quality but also fosters groundbreaking innovation. We equip ourselves to deliver extraordinary products that not only meet but redefine industry standards, consistently surpassing expectations with every offering.
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 vibrant realm of innovation where precision is paramount, we stand as pioneers, revolutionizing industry standards with our unmatched methodologies. We proudly lay the groundwork for world-class quality benchmarks that influence each phase of our production journey. Our steadfast dedication to excellence is woven into every meticulously crafted step, ensuring our materials match the sophistication of the advanced methods we employ, setting us apart as industry leaders.
Our state-of-the-art warehouse subjects every raw material to a rigorous evaluation process, setting unprecedented standards in quality assurance. Our comprehensive approach includes detailed chemical composition analysis and stringent assessments of physical properties. Suppliers are mandated to provide a Certificate of Origin, along with a verified Declaration of Conformity, ensuring that only premium materials are employed in our cutting-edge medical machining services. This rigorous validation process fortifies material integrity, perfectly mirroring our unwavering commitment to superior quality.
Uncompromising In-Process Quality Control: Driven by a relentless pursuit of perfection, we maintain an unwavering focus on meticulous detail and vigilance. This thorough process ensures our standard of excellence is consistently achieved-and often surpassed-throughout every phase of production.
Throughout the intricate machining process, each component is subjected to exhaustive scrutiny, ensuring dimensions and tolerances align precisely with our demanding specifications. This proactive inspection protocol is vital in detecting and intercepting potential defects, effectively preventing any non-conforming parts from progressing. Our diligent approach significantly diminishes the risk of producing substandard goods, ensuring exceptional quality is consistently maintained at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework serves as the foundation of flawless excellence, embodying unmatched precision and comprehensive thoroughness.
The First Article Inspection (FAI) process represents a cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This foresightful approach ensures issues are addressed before they escalate into production obstacles. Our comprehensive FAI process is crucial in minimizing quality risks, ensuring our products invariably achieve the highest standards, reflecting our unwavering commitment to excellence throughout the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, securing the delivery of perfection.
Prior to any product's departure from our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation encompasses assessments of dimensions, visual aesthetics, performance, and adherence to specific customer requirements. This thorough inspection exemplifies our unwavering dedication to quality, ensuring every delivered part meets our exacting standards, providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the illustrious year of 2009, although our roots reach back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a luminary of innovation in the sophisticated field of high-precision component machining. Our distinguished journey is marked by an unwavering dedication to the artistry and exact science of engineering, spanning over two decades of relentless innovation and extraordinary precision. We have etched our name indelibly as trailblazers in precision engineering, constantly pushing the boundaries of technical research and setting groundbreaking industry standards. We consistently surpass expectations in both innovation and unmatched quality. We have meticulously cultivated an extraordinary level of technical expertise, positioning ourselves as market leaders with a prestigious reputation for unparalleled excellence. Our unmatched mastery in precision medical machining services consistently achieves the most exacting tolerances and delivers impeccable surface finishes. This unwavering dedication solidifies our status as the preferred choice in the medical sector. Our precision and steadfast reliability have earned us enduring trust and high regard, making us the foremost authority for superior machining solutions.
With four strategically positioned production facilities, nestled in the vibrant and bustling hubs of Shenzhen and Guiyang, and supported by a remarkable team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive and vertically integrated industry chain. This chain seamlessly connects 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 outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are exquisitely designed to handle the most complex and demanding machining tasks, 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)