Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is more than just a duty; it's a passionate pursuit of the art and science of precision manufacturing, driven by an inspired dedication to excellence. Our unparalleled expertise shines as a beacon in the realm of high-end component fabrication, illuminating the path to achieving meticulous precision and perfection. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions cater to a vast array of industries, adeptly addressing diverse applications, including:
- Medical and Biotech Sector: Delivering meticulously engineered high-precision components and groundbreaking solutions for cutting-edge medical devices, upholding the highest quality standards of excellence.
- Semiconductors Industry: Empowering the chip production sector and its associated equipment by providing essential core components that are crucial to the industry's thriving success.
- New Energy Innovations: Actively involved in the dynamic and sustainable advancement of pioneering energy equipment, promoting eco-friendly technological evolution.
- Automotive Industry: Supplying vital components that drive innovation within the automotive sector, supporting the evolution and growth of smart and electric vehicles.
Core Products
- We excel in crafting non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unparalleled precision and superior quality in every product.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary collection of over 300 renowned machines, empowering us to expertly navigate a broad spectrum of equipment categories. This exceptional capability allows us to adeptly meet the intricate machining requirements of various industries, ensuring a level of accuracy and efficiency that is simply unparalleled.
- With a rich history spanning two decades, we harness extensive production experience alongside significant technical and process expertise. This commitment ensures not only superior quality but also fosters innovative thinking, positioning us as pioneering leaders in the precision engineering landscape.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Incoming Material Evaluation
Every piece of raw material arriving at our facility undergoes a meticulous and exhaustive evaluation process, setting an unmatched standard in scrutiny. Our precise assessments encompass every aspect, from a detailed chemical composition analysis to a thorough inspection of physical properties. With an unwavering commitment to unparalleled quality, we require every supplier to furnish a Certificate of Origin along with a stamped Declaration of Conformity. This rigorous protocol ensures that only the finest materials are selected for our high-precision medical machining services. Our stringent verification process guarantees materials of the highest integrity and purity, perfectly aligning with our steadfast devotion to excellence.
Rigorous In-Process Quality Control
Throughout our intricate machining operations, each component undergoes meticulous scrutiny to ensure that dimensions and tolerances not only meet but exceed our rigorous specifications. Our diligent inspection protocol is meticulously designed to identify potential defects at the earliest stages, preventing non-conforming parts from progressing further. This vigilant approach is crucial in minimizing the risk of substandard outputs, ensuring unrivaled quality at every step, and maintaining excellence throughout the production journey.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process serves as a cornerstone strategy, crucial in identifying and resolving potential production challenges at the outset. This proactive methodology ensures issues are addressed long before they reach mass production. The comprehensive and precise nature of our FAI process is essential in mitigating quality risks, consistently elevating our products to the pinnacle of standards. Our unwavering dedication to excellence permeates every facet of the production cycle, ensuring we exceed the highest quality benchmarks with every product.
Exhaustive and Detailed Final Inspection
Before any product leaves 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, assuring that every part departing our facility aligns with our exacting standards. We are unwavering in delivering only the finest products to our esteemed customers, consistently reinforcing our reputation for excellence and dependability.
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)