Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not just a duty; it's a fervent passion for the artistry and science of precision manufacturing at its finest. Our unrivaled expertise lights the way in high-end component fabrication, guiding us with precision and excellence. We are at the forefront of developing groundbreaking intelligent automation equipment. Our advanced solutions cater to a wide range of industries, encompassing diverse applications, including:
- Medical and Biotech: We deliver expertly crafted high-precision components and innovative solutions for the most advanced medical devices, ensuring top-tier quality standards are met.
- Semiconductors: We empower chip manufacturing and its complementary equipment by providing essential core components vital for the industry's triumph.
- New Energy: We are passionate about the dynamic and sustainable progress of innovative energy equipment, advancing eco-friendly technological innovations.
- Automotive: We supply critical components that drive innovation within the automotive industry, supporting the advancement of smart and electric vehicles.
Main Products
- We excel in producing non-standard customized components, serving the medical, automation, semiconductor, and automotive industries with unparalleled precision and utmost quality.
Why choose us
Core Advantages
- A Fleet of Unrivaled Excellence Our operations proudly showcase an extraordinary assortment of over 300 top-of-the-line renowned and industry-respected machines, each meticulously selected for its cutting-edge capabilities and robust performance.This incredible arsenal of technology empowers us to masterfully address a comprehensive spectrum of equipment categories. It ensures our unmatched ability to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, meeting even the most demanding specifications.
- With a rich legacy spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering, continually leading with breakthrough advancements and superior craftsmanship.
State-of-the-Art Production Equipment for Precision and Excellence
High-Precision Inspection Equipment Ensuring Quality at Every Step
Quality Ensurance
Exemplary Incoming Material Examination
Each raw material entering our facility undergoes a rigorous and comprehensive examination process. These meticulous analyses encompass evaluations of the chemical composition and a thorough inspection of the physical properties. Our unwavering commitment to quality mandates that every supplier provide a Certificate of Origin and a stamped Declaration of Conformity. This stringent selection process ensures that only the finest materials are chosen for our high-precision medical machining services. Our rigorous authentication protocol guarantees that these materials meet the utmost standards of integrity and purity, perfectly aligning with our commitment to excellence.
Intensive In-Process Quality Assurance
Throughout our intricate and precision-driven machining operations, each component is meticulously scrutinized to ensure its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and ongoing inspection protocol is strategically designed to identify potential defects early in the process, thereby preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is crucial in minimizing the risk of substandard goods, ensuring superior quality at every phase of production, and maintaining excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy essential for identifying and addressing potential production challenges at the earliest stage. This proactive measure prevents issues from escalating into full-scale production. The comprehensive and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently reach the highest standards. Our dedication to excellence permeates every facet of the production cycle, guaranteeing that we meet and surpass the most stringent quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product departs our facility, it is subjected to an exhaustive and meticulous final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are unwavering in our dedication to delivering only the highest quality products to our valued customers, upholding our esteemed reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, tracing back to its foundational roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has proudly established itself as a bastion of unparalleled expertise in the realm of high-precision basic component machining. With an unwavering commitment to groundbreaking innovation over the past two decades, we have delved meticulously into technical research, positioning ourselves as true pioneers in the world of precision engineering. We have amassed an extraordinary wealth of technical expertise, earning an enviable market reputation that distinguishes us as a leader in the industry. Our precision medical machining services are unparalleled, consistently achieving the most precise tolerances and flawless surface finishes, thus making us the preferred choice in the demanding and dynamic medical sector.
With four strategically located production bases in the energetic and industrious hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamlessly weaves together research and development, production, and delivery processes, ensuring that we exceed the diverse expectations of our customers with remarkable efficiency and unsurpassed quality. Our cutting-edge facilities are adept at handling the most intricate and demanding machining tasks, reinforcing 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)