Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication to unparalleled excellence transcends basic expectations. It is our ardent zeal that energizes our pursuit of brilliance within the intricate art and advanced science of manufacturing mastery. Our exceptional proficiency illuminates the journey toward unmatched precision, establishing us as a guiding beacon within the elite sphere of component manufacturing. At the cutting edge of innovation, we set the benchmark for excellence in designing and creating groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly blend into a wide range of industries, adeptly catering to diverse requirements with precision across various applications, including:
- Medical and Biotech: Delivering meticulously crafted, high-precision components and pioneering solutions engineered for the next wave of medical devices.
- Semiconductors: Transforming chip production and its essential equipment with indispensable core components.
- New Energy: Contributing significantly to the innovative and sustainable enhancement of advanced energy equipment.
- Automotive: Providing critical components that drive innovation within the automotive sector, aiding in the evolution of smart and electric vehicles.
Main Products
- Precision-designed, non-standard customized components, serving pivotal industries such as medical, automation, semiconductor, and automotive with exceptional distinction.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are bolstered by an impressive fleet consisting of over 300 of the industry's most advanced machinery units. This elite ensemble ensures we maintain a comprehensive and dynamic catalog of equipment categories, positioning us at the forefront of innovation and adaptability in a myriad of industrial landscapes. These top-tier branded machinery units form the backbone of our precision-focused manufacturing, empowering us to expertly address the diverse and challenging machining requirements across a multitude of industries. We achieve exceptional precision and efficiency, guaranteeing adherence to the highest quality standards. Our bespoke customization services are meticulously crafted to meet the distinctive needs of our esteemed clientele.
- Boasting an illustrious 20-year legacy, we draw on a deep reservoir of manufacturing experience, seamlessly integrated with profound technical expertise and process strengths. This unique combination ensures the delivery of superior quality and pioneering innovation. Our enduring mastery enables us to consistently deliver extraordinary products that exceed expectations, establishing new benchmarks in industry standards.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Exceeding Industry Standards: Detailed and Exacting Incoming Material Inspection
Every piece of raw material entering our cutting-edge facility undergoes a thorough and precise evaluation, setting the benchmark for quality assurance. Our detailed process includes in-depth chemical analysis and an exhaustive examination of physical characteristics. Our steadfast dedication to excellence mandates that each supplier provides a Certificate of Origin and a stamped Declaration of Conformity, ensuring the selection of only the finest materials for our high-precision medical machining services. This rigorous authentication fortifies the integrity and purity of materials, consistently aligning with our high standards of quality and precision.
In-Process Quality Control: Striving for Perfection
During the intricate machining process, each component is meticulously examined to ensure its dimensions and tolerances meet our rigorous specifications. This diligent and continuous inspection protocol proactively identifies potential defects, preventing any non-conforming parts from advancing further. With this vigilant approach, we significantly reduce the risk of producing large quantities of substandard goods, thereby maintaining superior quality at every vital stage of production.
Comprehensive and Proactive First Article Inspection (FAI): A Framework for Excellence
Our First Article Inspection (FAI) process is the cornerstone of our strategy, expertly identifying and solving potential production challenges at the outset. This proactive approach prevents issues from escalating into mass production, ensuring a smooth flow of flawless production. Our comprehensive and precise FAI process is pivotal in minimizing quality risks, guaranteeing that our products consistently achieve the highest standards, reflecting our unwavering commitment to excellence throughout the production cycle.
Comprehensive Final Inspection: The Ultimate Quality Guardian
Before any product departs our facility, it undergoes a meticulous and detailed final inspection. This stringent evaluation covers dimensions, visual appearance, and performance, along with any customer-specific requirements. This extensive inspection showcases our relentless commitment to quality, ensuring that every dispatched part meets our rigorous standards, consistently delivering the highest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon its founding vision from 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has passionately dedicated itself to mastering the art and science of high-precision component machining. With an unwavering commitment to innovation over the past two decades, we have emerged as trailblazers in the realm of precision engineering. Through relentless technical research, we have established ourselves as industry pioneers, setting benchmarks of excellence. Our company possesses a wealth of unparalleled technical expertise, solidifying our position as market leaders with a distinguished reputation for excellence. Our exceptional skill in precision medical machining services consistently achieves the most stringent tolerances and immaculate surface finishes. This distinction makes us the top choice within the medical sector, where our precision and reliability are esteemed and indispensable.
With four strategically positioned production bases, situated in the dynamic hubs of Shenzhen and Guiyang, and powered by an ambitious workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our clientele with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and demanding machining tasks, cementing our prestigious reputation for excellence and 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)