Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are wholeheartedly devoted to mastering the art of precision manufacturing. Where time-honored craftsmanship intersects with cutting-edge innovation, we usher in a new era of unmatched excellence. Our unwavering pursuit of perfection ensures that every creation is a testament to flawless artisanship. By leveraging the latest technologies and upholding our steadfast commitment to quality, we set ourselves apart, delivering extraordinary, intricately engineered components that exemplify the pinnacle of precision and artistry. With unparalleled expertise in precision engineering, we set the gold standard for component excellence. Our extraordinary agility and refined finesse guarantee superior quality across every dimension of our operations, reinforcing our status as pioneers and leaders in the industry. As trailblazers of innovation, we redefine benchmarks in the design and delivery of revolutionary intelligent automation equipment. Our groundbreaking solutions seamlessly integrate into diverse industries, deftly addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions lead the forefront of advanced medical technologies, setting unprecedented standards of excellence in the field.
- SemiconductorsWith our critical and essential components, we are at the forefront of driving advancements in chip fabrication and related equipment, significantly enhancing efficiency and innovation within the semiconductor industry.
- New EnergyWe are pivotal in the innovative and sustainable evolution of next-generation energy equipment, playing a crucial role in shaping the future landscape of energy solutions.
- AutomotiveProviding indispensable components, we spearhead innovation within the automotive industry. Our contributions propel the development of intelligent and electric vehicles, defining the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Catering to vital sectors such as medical, automation, semiconductor, and automotive industries, we deliver unmatched 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 an extraordinary assembly of over 300 of the industry's most sophisticated and advanced machinery units. This extensive and innovative lineup places us at the pinnacle of innovation, ensuring our leadership in adaptability and precision. By consistently delivering groundbreaking solutions, we set the industry benchmark for excellence, perpetually striving for unparalleled precision and exceptional quality, redefining the frontiers of industrial capabilities. These Top-Tier Branded Our cutting-edge machinery units are the backbone of our precision-focused manufacturing operations. They form the essential infrastructure that maintains our steadfast production standards. With these state-of-the-art tools, we continually enhance and elevate our manufacturing processes to achieve consistently superior results, ensuring that we remain at the forefront of precision engineering. Equipped with our top-tier machines, we flawlessly execute intricate and challenging machining tasks across a multitude of industries, achieving unmatched precision and efficiency. Our broad capabilities guarantee unwavering adherence to the most stringent quality standards while offering bespoke customization that not only fulfills but consistently exceeds the unique expectations of our valued clients, surpassing their highest aspirations and setting new industry benchmarks for quality and innovation.
- Celebrating an esteemed 20-year legacy, we draw from a rich reservoir of manufacturing expertise intricately interwoven with profound technical knowledge and process mastery. This seamless synergy ensures not only superior quality but also revolutionary innovation. We empower ourselves to consistently deliver extraordinary products that surpass expectations and redefine industry standards of excellence, leading the charge in technological advancement.
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 ever-evolving realm of innovation where precision is paramount, we raise the bar with unmatched methodologies. We proudly lay the groundwork for global quality standards, setting pioneering benchmarks that influence every stage of our production journey. Our steadfast commitment to excellence is manifested in each meticulously crafted step, ensuring our materials are as refined as the sophisticated techniques we utilize.
Every raw material that enters our state-of-the-art warehouse is subjected to a stringent evaluation, setting new benchmarks in quality assurance. Our comprehensive approach encompasses meticulous chemical composition analysis and rigorous assessments of physical properties. Suppliers are required to provide a Certificate of Origin, coupled with a verified Declaration of Conformity, ensuring that only the finest materials are employed in our cutting-edge medical machining services. This rigorous validation process fortifies material integrity, perfectly aligning with our unwavering dedication to unparalleled quality.
Uncompromising In-Process Quality Control: With unwavering attention to detail and relentless vigilance, we strive for perfection with unwavering dedication. This meticulous process ensures our standard of excellence is consistently met-and often surpassed-across every phase of production.
Throughout the intricate machining process, each component is subjected to exhaustive scrutiny to ensure dimensions and tolerances align precisely with our rigorous specifications. This proactive inspection protocol is crucial in identifying and intercepting potential defects, effectively preventing any non-conforming parts from advancing. Through this diligent approach, we significantly reduce the risk of producing substandard goods, consistently maintaining exceptional quality at every stage of production.
Anticipatory and Comprehensive First Article Inspection (FAI): Our preventative framework forms the bedrock of unparalleled excellence, showcasing unmatched precision and thoroughness.
The First Article Inspection (FAI) process stands as a cornerstone of our quality strategy, expertly identifying and resolving potential production challenges from the outset. This proactive approach ensures that issues are addressed before escalating into production hurdles. Our comprehensive FAI process is pivotal in minimizing quality risks, ensuring our products consistently achieve the pinnacle of standards and reflecting our unwavering commitment to excellence across the production spectrum.
Meticulous and Detailed Comprehensive Final Inspection: The ultimate guardian of exceptional quality and precision, securing the delivery of perfection.
Before any product leaves our facility, it undergoes a meticulous and detailed comprehensive final inspection. This rigorous evaluation includes assessments of dimensions, visual appeal, performance, and adherence to customer-specific requirements. This thorough inspection underscores our unwavering commitment to quality, ensuring every delivered part aligns with our exacting standards, providing our esteemed customers with products of the highest caliber.
Packaging & Shipping
Company Profile
In the distinguished year of 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerged as a beacon of innovation within the refined realm of high-precision component machining, though our origins humbly trace back to 2002. Our illustrious journey, spanning over two decades, has been driven by an unwavering passion for the nuanced artistry and exacting science of engineering. We have indelibly etched our name as pioneers in precision engineering, ceaselessly pushing the boundaries of technical research, setting groundbreaking industry standards, and consistently exceeding expectations with our extraordinary innovation and unparalleled quality. We have meticulously ascended to become market leaders, cultivating an exceptional level of technical prowess and earning an esteemed reputation for unmatched excellence. Our unrivaled mastery in precision medical machining services consistently achieves the most stringent tolerances and delivers flawless surface finishes. This unwavering dedication cements our status as the preferred choice in the medical sector, earning us enduring trust and regard. Our precision and steadfast reliability make us the foremost authority for superior machining solutions.
With four strategically positioned production facilities, in the vibrant and dynamic centers of Shenzhen and Guiyang, supported by an exceptional team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This seamless chain effortlessly connects cutting-edge research and development, superior production, and flawless delivery. Our operations 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 manage the most complex and demanding machining tasks, reinforcing our esteemed reputation for excellence and trailblazing 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)