Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are passionately devoted to mastering the art of precision manufacturing. Where the timeless elegance of craftsmanship meets the forefront of innovation, we usher in a new era of unmatched excellence. Our unwavering pursuit of perfection ensures that every creation is a testament to flawless artistry. By leveraging cutting-edge technologies and maintaining our steadfast commitment to quality, we set ourselves apart, delivering exceptional, intricately engineered components that epitomize the pinnacle of precision and artistry. With unparalleled expertise in precision engineering, we set the gold standard for component excellence. Our remarkable agility and sophisticated finesse guarantee exceptional quality across every aspect of our operations, firmly establishing our position as pioneers and leaders in the industry. As innovators of repute, we redefine industry benchmarks in the design and delivery of revolutionary intelligent automation equipment. Our groundbreaking solutions integrate seamlessly into diverse industries, expertly addressing the unique challenges of various applications, including:
- Medical and BiotechOur meticulously engineered, ultra-high-precision components and transformative solutions spearhead the forefront of advanced medical technologies, setting unprecedented standards of excellence within 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 play a pivotal role in the innovative and sustainable evolution of next-generation energy equipment, making crucial contributions to the future landscape of energy solutions.
- AutomotiveProviding indispensable components, we drive innovation within the automotive industry. Our contributions advance the development of intelligent and electric vehicles, shaping the future of mobility.
Main Products
- Our expertly crafted non-standard customized components epitomize excellence. Serving vital sectors such as medical, automation, semiconductor, and automotive industries, we deliver 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 driven by an exceptional fleet comprising over 300 cutting-edge machines that are the pinnacle of the industry's technological advancement. This expansive and innovative collection places us at the forefront of innovation, securing our leadership in precision and adaptability. By consistently delivering groundbreaking solutions, we set the industry's benchmark for excellence, always striving for unparalleled precision and outstanding quality. These Top-Tier Branded Our trailblazing machinery units are the backbone of our precision-focused manufacturing, forming the vital infrastructure that supports our unwavering production standards. Equipped with these state-of-the-art tools, we continually refine and elevate our manufacturing processes to achieve consistently exceptional results. With our elite machinery, we seamlessly execute intricate and demanding machining tasks across diverse industries, achieving exceptional precision and efficiency. Our extensive capabilities guarantee steadfast adherence to the strictest quality standards while offering bespoke customization that not only meets but consistently exceeds the unique expectations of our esteemed clients, going beyond their highest aspirations.
- Celebrating a prestigious 20-year legacy, we draw from a rich reservoir of manufacturing expertise intertwined with profound technical acumen and mastery of processes. This seamless synergy ensures not just superior quality but also groundbreaking innovation. We empower ourselves to consistently deliver extraordinary products that exceed 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 the ever-evolving realm of technological advancement, precision is paramount. That's why we elevate industry standards to new heights with our unrivaled methodologies. We proudly lay the groundwork for global quality benchmarks, introducing revolutionary standards that permeate every stage of our production journey. Our steadfast dedication to excellence is woven into each meticulously-crafted step, ensuring our materials are as refined as the sophisticated methods we deploy.
Every raw material that enters our state-of-the-art facility is subjected to a rigorous evaluation process, setting unprecedented benchmarks in quality assurance. Our comprehensive approach involves meticulous chemical composition analysis and detailed assessments of physical properties. Suppliers must provide a Certificate of Origin, complemented by a verified Declaration of Conformity, ensuring only the highest-quality materials are used in our innovative medical machining services. This thorough validation process fortifies material integrity, aligning seamlessly with our unwavering dedication to unparalleled quality.
Uncompromising In-Process Quality Control: With an unyielding commitment to meticulous detail and relentless vigilance, we strive for perfection with unwavering dedication. This scrupulous process ensures our standard of excellence is consistently met-and often surpassed-throughout each stage of production.
Throughout the intricate machining process, each component undergoes exhaustive scrutiny to ensure dimensions and tolerances are impeccably aligned with our stringent specifications. This proactive inspection protocol is essential in identifying and intercepting potential defects, effectively preventing any non-conforming parts from moving forward. Through this diligent approach, we significantly diminish the risk of producing substandard goods, consistently maintaining exceptional quality at every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): Our preventative framework is the cornerstone of immaculate excellence, showcasing unparalleled precision and thoroughness.
The First Article Inspection (FAI) process is an integral cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges right from the start. This proactive approach guarantees that issues are addressed before they escalate into production obstacles. Our extensive FAI process is crucial in minimizing quality risks, ensuring our products consistently achieve the highest standards, reflecting our unwavering commitment to excellence throughout the entire 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 thorough comprehensive final inspection. This stringent evaluation includes assessments of dimensions, visual appeal, performance, and compliance with customer-specific requirements. This exhaustive inspection underscores our unwavering commitment to quality, ensuring every delivered part adheres to our exacting standards, offering our esteemed customers products of the absolute highest 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 innovation in the refined realm of high-precision component machining. Our illustrious journey has been driven by an unwavering passion for the nuanced artistry and exacting science of engineering, spanning more than two decades of relentless innovation and extraordinary precision. We have indelibly etched our name as pioneers in precision engineering, ceaselessly pushing the boundaries of technical research and setting groundbreaking industry standards, consistently surpassing expectations in both innovation and unparalleled quality. We have meticulously cultivated an exceptional level of technical prowess, establishing ourselves as market leaders with an esteemed reputation for unparalleled excellence. Our mastery in precision medical machining services is unmatched, consistently achieving the most stringent tolerances and delivering flawless 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 regard, making us the foremost authority for superior machining solutions.
With four strategically positioned production facilities, in the dynamic and bustling centers of Shenzhen and Guiyang, and supported by a remarkable team of over 400 highly qualified specialists, Donghui has meticulously crafted a comprehensive, vertically integrated industry chain. This chain effortlessly connects cutting-edge research and development, superior production, and flawless delivery. Our operations ensure 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 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)