Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere duty; it is a passionate pursuit of excellence in the art and science of precision manufacturing, driven by a fervent dedication to quality and innovation. Our unrivaled expertise stands as a beacon in the realm of high-end component fabrication, illuminating the pathway to unparalleled precision and craftsmanship. We are at the forefront of pioneering the development and production of groundbreaking intelligent automation equipment. Our state-of-the-art solutions address a vast array of industries, effectively meeting the needs of diverse applications, including:
- Medical and Biotech: Delivering meticulously engineered high-precision components and cutting-edge solutions for state-of-the-art medical devices, consistently upholding the highest standards of quality.
- Semiconductors: Empowering the production of chips and their associated equipment through the provision of indispensable core components crucial to the industry's success and advancement.
- New Energy: Engaging in the dynamic and sustainable advancement of innovative energy equipment, propelling the progress of eco-friendly technologies.
- Automotive: Providing essential components that drive innovation within the automotive sector, fostering the development of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unparalleled precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency. With our extensive lineup, we're equipped to transcend ordinary solutions, bringing visionary engineering to the forefront.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering. Our legacy of excellence is built on a foundation of relentless pursuit of perfection and continuous advancement, ensuring our leadership in the field.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unrivaled Examination of Incoming Materials
Every raw material that finds its way into our warehouse undergoes an exhaustive and stringent examination process, ensuring unparalleled precision. Our meticulous analyses encompass in-depth evaluations of chemical compositions and thorough inspections of physical properties. We are unwavering in our commitment to quality, demanding that every supplier presents a Certificate of Origin along with a stamped Declaration of Conformity. This rigorous protocol secures the selection of only the finest materials for our high-precision medical machining services, guaranteeing that they meet the highest standards of integrity and purity. Our relentless authentication process aligns seamlessly with our steadfast dedication to quality, ensuring perfection in every component.
In-Depth In-Process Quality Assurance
Within our intricate and precise machining operations, each component is scrutinized with meticulous care to ensure that its dimensions and tolerances not only meet but surpass our rigorous specifications. Our diligent and ongoing inspection protocol is strategically crafted to intercept potential defects early, effectively preventing non-conforming parts from advancing to subsequent stages. This vigilant strategy is crucial in minimizing the risk of substandard goods, ensuring superior quality at every stage of production, and upholding excellence throughout the entire process.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy designed to identify and resolve potential production challenges at the outset. This proactive approach effectively prevents issues from escalating into mass production. The extensive and precise nature of our FAI process is integral in minimizing quality risks, ensuring our products consistently achieve the zenith of standards. This unwavering dedication to excellence is woven into every aspect of the production cycle, assuring that we consistently meet and exceed the highest quality benchmarks.
Thorough and Meticulous Final Inspection
Prior to any product's departure from our facility, it undergoes a meticulous and comprehensive final inspection. This process rigorously examines dimensions, visual appearance, performance, and any customer-specific requirements. Our exhaustive inspection process is a testament to our unwavering commitment to quality, ensuring that each part dispatched meets our exacting standards. We are resolute in delivering only the highest quality products to our valued customers, sustaining our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a bastion of expertise in high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our 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)