Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends mere duty-it's an inspired journey into the art and science of precision manufacturing, passionately fueled by an unwavering dedication to achieving unparalleled excellence. Our unmatched expertise serves as a beacon in the high-end component fabrication landscape, illuminating the pathway to achieve meticulous precision and faultless perfection. Pioneering at the cutting edge, we develop and manufacture revolutionary intelligent automation equipment. Our advanced solutions span a wide spectrum of industries, expertly addressing a diverse array of applications, including:
- Medical and Biotech Sector: We deliver meticulously engineered high-precision components and innovative solutions for cutting-edge medical devices, consistently upholding the highest standards of quality and excellence.
- Semiconductors Industry: We empower the chip production sector and its associated equipment by providing indispensable core components that are vital to the industry's flourishing success.
- New Energy Innovations: We are actively engaged in the dynamic and sustainable progression of pioneering energy equipment, championing eco-friendly technological advancement and evolution.
- Automotive Industry: We supply essential components that drive innovation within the automotive industry, underpinning the growth and advancement of smart and electric vehicles.
Core Products
- We specialize in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries. We ensure 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 Incoming Material Evaluation
Every piece of raw material entering our warehouse undergoes an exhaustive, meticulous examination process that stands unparalleled in its rigor and precision. Our analyses are thorough, covering every aspect from detailed chemical composition evaluations to comprehensive inspections of physical properties. With an unwavering commitment to supreme quality, we require every supplier to provide a Certificate of Origin accompanied by a stamped Declaration of Conformity. This ensures the selection of only the highest-grade materials for our high-precision medical machining services. Our stringent authentication process guarantees materials of utmost integrity and purity, reflecting our steadfast dedication to excellence.
Comprehensive In-Process Quality Assurance
Throughout our intricate machining operations, each component undergoes precision scrutiny to ensure dimensions and tolerances not only meet but exceed our rigorous specifications. Our inspection protocol is meticulously designed to detect potential defects at the earliest stages, effectively preventing non-conforming parts from advancing further. This vigilant approach is instrumental in minimizing risks of substandard outputs, ensuring unrivaled quality at every phase, and upholding excellence throughout the entire 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 early on. This proactive methodology ensures that issues are addressed long before they reach mass production. The comprehensive and precise nature of our FAI process is vital in mitigating quality risks, continuously elevating our products to the highest standards. Our unwavering dedication to excellence permeates every aspect of the production cycle, ensuring we consistently surpass the loftiest quality benchmarks.
Meticulous and Extensive Final Inspection
Before any product leaves our facility, it undergoes a meticulous and comprehensive final inspection. This rigorous process assesses dimensions, visual appearance, performance, and adheres to any customer-specific requirements. Our exhaustive inspection regimen stands as a testament to our relentless pursuit of quality, ensuring every part that leaves our facility aligns precisely with our exacting standards. We are unwavering in our commitment to deliver 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 its foundational roots stretching 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. With an unwavering and steadfast commitment to groundbreaking innovation over the past two decades, we have delved deeply into technical research, establishing ourselves as true pioneers in the field of precision engineering. At Donghui, we have amassed an unparalleled wealth of technical expertise, earning a stellar and enviable market reputation that distinctly sets us apart as a true leader in the industry. Our unmatched capabilities in precision medical machining services consistently achieve incredibly tight tolerances and impeccable, flawless surface finishes, making us the preferred and trusted choice in the demanding medical sector.
With an impressive array of resources, we boast four strategically located production bases, nestled within the bustling and vibrant hubs of Shenzhen and Guiyang, powered by our dedicated and skilled 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 and development, production, and delivery, ensuring that we not only meet but consistently exceed the diverse needs and expectations of our valued customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are impeccably equipped to handle the most intricate and demanding machining tasks, steadfastly maintaining our reputation for 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)