Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately devoted to the perfection of precision manufacturing. Where traditional craftsmanship meets avant-garde innovation, we usher in a new age of unmatched brilliance. Our steadfast pursuit of perfection guarantees that each creation is a testament to flawless artistry. By leveraging the latest technologies and strictly adhering to our unyielding quality standards, we set ourselves apart, delivering exceptional, intricately engineered components that embody the peak of precision and craftsmanship. Blessed with unrivaled expertise in precision engineering, we set the benchmark for component excellence. Our extraordinary agility and refined finesse ensure unmatched quality across every operation facet, reinforcing our status as pioneers and leaders in the industry. As pioneers of innovation, we redefine standards in designing and delivering groundbreaking intelligent automation equipment. Our revolutionary solutions seamlessly integrate across diverse industries, adeptly addressing the distinctive challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions spearhead advanced medical technologies, establishing unprecedented excellence standards in the field.
- SemiconductorsProviding essential, critical components, we propel advancements in chip fabrication and related equipment, vastly enhancing efficiency and innovation in the semiconductor sector.
- New EnergyWe are pivotal in driving the innovative and sustainable evolution of next-generation energy equipment, significantly influencing the future landscape of energy solutions.
- AutomotiveDelivering indispensable components, we lead the charge in automotive innovation. Our contributions advance intelligent and electric vehicle development, shaping the mobility future.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Serving crucial sectors such as medical, automation, semiconductor, and automotive industries, we deliver 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 powered by an extraordinary fleet of over 300 of the industry's most sophisticated machinery units. This extensive and cutting-edge arsenal solidifies our leadership in innovation and adaptability, consistently setting the industry benchmark for excellence. We are committed to delivering groundbreaking solutions, perpetually striving for unmatched precision and exemplary quality that redefine standards. These Top-Tier Branded Standing at the forefront of precision-driven manufacturing, our pioneering machinery units form the essential backbone of our production standards. These state-of-the-art instruments allow us to perpetually refine and elevate our manufacturing prowess, ensuring consistently outstanding results that are a testament to our excellence. Harnessing the power of our high-caliber machines, we deftly manage complex machining tasks across various industries, achieving unrivaled precision and efficiency. Our vast capabilities ensure adherence to the highest quality standards while providing bespoke customization that not only meets but consistently surpasses our esteemed clients' unique needs, surpassing even their loftiest expectations with remarkable consistency.
- With a prestigious 20-year legacy, we draw upon a rich tapestry of manufacturing experience intricately woven with profound technical expertise and process mastery. This harmonious synergy assures not only superior quality but also groundbreaking innovation, empowering us to consistently deliver extraordinary products that surpass expectations and redefine 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 today's world where cutting-edge innovation and pinpoint precision are paramount, we don't merely meet the rigorous demands of our industry; we redefine them with unmatched methods. We proudly establish the bedrock for superior quality, setting groundbreaking standards that resonate through every aspect of our production journey.
Each raw material arriving at our cutting-edge warehouse undergoes a rigorous evaluation, setting a new gold standard in quality assurance. Our comprehensive approach features an in-depth chemical composition analysis and rigorous physical property assessments. Suppliers are required to provide a Certificate of Origin, coupled with a verified Declaration of Conformity, to guarantee that only the highest quality materials are utilized in our advanced medical machining services. This meticulous validation process amplifies the integrity and purity of the materials, seamlessly aligning with our unwavering dedication to supreme quality.
Uncompromising In-Process Quality Control: With relentless attention to detail and unwavering vigilance, we endeavor towards perfection with steadfast commitment. This meticulous process ensures that our standards of excellence are not just met but frequently surpassed, consistently raising the bar.
Throughout our complex machining process, each component undergoes thorough scrutiny to ensure it meets precise dimensions and tolerances as per our rigorous specifications. This proactive inspection protocol is vital in identifying and intercepting potential defects, preventing any non-conforming parts from proceeding further. Through this diligent strategy, we significantly reduce the risk of producing substandard products, consistently ensuring that exceptional quality is maintained at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our proactive framework serves as the foundation for flawless precision, exemplifying unmatched thoroughness and accuracy.
The First Article Inspection (FAI) process forms the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges from the start. This proactive approach ensures issues are addressed before they evolve into production obstacles. Our comprehensive FAI process is crucial in minimizing quality risks, ensuring our products consistently meet the highest standards, reflecting our unwavering commitment to excellence throughout the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of extraordinary quality and precision, ensuring the delivery of impeccable perfection.
Before any product leaves our facility, it is subject to a meticulous and comprehensive final inspection. This rigorous evaluation includes assessments of dimensions, visual appeal, performance, and customer-specific requirements. This thorough inspection underscores our steadfast commitment to quality, ensuring that every delivered part meets our exacting standards and provides our esteemed customers with products of unparalleled caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, although our esteemed origins trace 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 has been propelled by an unwavering zeal for the intricate art and rigorous science of engineering, spanning over two decades of relentless innovation and exceptional precision. We have etched our name in history as pioneers in precision engineering, continuously pushing the boundaries of technical research and setting groundbreaking industry standards, while consistently exceeding expectations with both innovative brilliance and unmatched quality. We have masterfully cultivated an unparalleled level of technical expertise, establishing ourselves as market leaders with a stellar 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 has solidified our status as the preferred choice in the medical sector. Our precision and steadfast reliability have garnered us enduring trust and esteem, making us the premier name for superior machining solutions.
With four strategically positioned production facilities, in the vibrant and dynamic locales of Shenzhen and Guiyang, and bolstered by an impressive team of over 400 highly skilled specialists, Donghui has meticulously engineered a comprehensive, vertically integrated industry chain. This seamless chain connects cutting-edge research and development, top-notch production, and impeccable delivery. Our operations ensure that we consistently meet and exceed the diverse demands of our clients with exceptional efficiency and unrivaled quality. Our state-of-the-art facilities are meticulously designed to tackle the most intricate and demanding machining tasks, strengthening our esteemed 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)