Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends obligation; it is a fervent quest for mastery in the intricate dance of precision manufacturing, fueled by an unwavering dedication to unparalleled excellence. Our unrivaled expertise stands as a beacon of innovation in the domain of elite component fabrication, lighting the way to achieving meticulous precision and the pinnacle of perfection. We lead the charge in developing and producing groundbreaking intelligent automation equipment. Our cutting-edge solutions serve a wide spectrum of industries, skillfully addressing diverse applications, including:
- Medical and Biotech Sector: Delivering expertly crafted, high-precision components and innovative solutions for the forefront of medical technology, maintaining the utmost standards of quality excellence.
- Semiconductors Industry: Powering the chip manufacturing industry and its related equipment by supplying critical core components pivotal to the industry's robust growth.
- New Energy Innovations: Actively participating in the dynamic and sustainable progression of cutting-edge energy equipment, advancing eco-conscious technological development.
- Automotive Industry: Providing key components that fuel innovation within the automotive sector, underpinning the evolution and expansion of smart and electric vehicles.
Core Products
- We specialize in crafting non-standard customized components, comprehensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and superior quality in every product we deliver.
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 unparalleled capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with a level of precision and efficiency that is truly unmatched.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This ensures not only exceptional quality but also innovative thinking, setting us apart as pioneering leaders in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unmatched Rigorous Incoming Material Evaluation
Every raw material entering our warehouse is meticulously subjected to an exhaustive and precise examination process, surpassing all industry standards in its rigor. Our comprehensive analyses span every aspect, from detailed evaluations of chemical compositions to an intensive inspection of physical properties. With an unwavering commitment to supreme quality, we require every supplier to provide a Certificate of Origin alongside a stamped Declaration of Conformity. This ensures that only the highest-grade materials are selected for our high-precision medical machining services. Our stringent authentication process guarantees materials of exceptional integrity and purity, reflecting our steadfast dedication to excellence.
In-Process Quality Assurance that Guarantees Precision
Throughout our intricate machining operations, each component is scrutinized with unmatched precision to ensure that dimensions and tolerances not only meet but consistently exceed our stringent specifications. Our diligent inspection protocol is expertly designed to detect potential defects at the earliest stages, effectively preventing non-conforming parts from advancing further. This vigilant approach plays a critical role in minimizing the risk of substandard outputs, ensuring exceptional quality at every phase, and sustaining excellence throughout the production journey.
Strategic and Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy, pivotal in identifying and resolving potential production challenges at the outset. This proactive approach ensures any issues are addressed long before they reach mass production. The comprehensive and precise nature of our FAI process is instrumental in mitigating quality risks, consistently elevating our products to the highest standards. Our unwavering dedication to excellence permeates every aspect of the production cycle, ensuring we surpass even the loftiest quality benchmarks.
Meticulous, Detailed, and Comprehensive Final Inspection
Before any product exits our facility, it undergoes a meticulous and comprehensive final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and adheres to any customer-specific requirements. Our exhaustive inspection regimen is a testament to our relentless pursuit of quality, ensuring every part leaving our facility aligns with our exacting standards. We are unwavering in delivering only the finest products to our esteemed customers, continually reinforcing our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its dynamic inception in 2009, with foundational roots tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a shining beacon of expertise in the realm of high-precision basic component machining. Our unwavering commitment to groundbreaking innovation over the past two decades has established us as pioneers in precision engineering, driven by deep technical research. At Donghui, we have amassed an unparalleled wealth of technical expertise and earned a stellar market reputation. This sets us apart as a true industry leader. Our unmatched precision medical machining services achieve incredibly tight tolerances and flawless surface finishes, making us the preferred choice in the demanding medical sector.
With an impressive array of resources, we boast four strategically located production bases, nestled within the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 highly trained employees. Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless chain expertly weaves together research, development, production, and delivery, ensuring we consistently exceed the diverse needs and expectations of our valued customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle the most intricate machining tasks, maintaining our excellence and groundbreaking innovation.
Captivating 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)