Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we go beyond mere duty, embracing the exquisite fusion of artistry and the science of precision manufacturing. Our relentless quest for perfection, coupled with our unwavering commitment to the pinnacle of quality and innovation, shines through every masterpiece we create. Our unrivaled expertise in high-end component fabrication serves as a beacon in the industry, illuminating our dedication to achieving extraordinary precision and unparalleled perfection. This esteemed reputation as industry leaders underscores our exceptional capabilities and innovative prowess. As pioneers in the realm of intelligent automation equipment, our cutting-edge solutions serve a wide array of industries. We adeptly address complex challenges with precision and innovation across various domains, including:
- Medical and Biotech Sector: By delivering intricately engineered, high-precision components and pioneering solutions for cutting-edge medical devices, we uphold the highest standards of quality and innovation in the healthcare industry.
- Semiconductors Industry: By empowering the chip production sector with critical core components, we drive this industry's robust success, fueling progress and technological advancement.
- New Energy Innovations: Actively engaging in the sustainable development of revolutionary energy equipment, we lead the charge towards a greener future through eco-friendly technological advancements.
- Automotive Industry: Providing essential components that catalyze innovation in the automotive sector, we propel the advancement of smart and electric vehicles, fostering industry growth and transformation.
Core Products
- Our expertise lies in crafting bespoke, non-standard components, serving pivotal sectors such as medical, automation, semiconductor, and automotive. We deliver unmatched precision and superior quality, consistently realizing our vision of excellence.
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 exceptional capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with a level of precision and efficiency that is truly unmatched. Our fleet's versatility and remarkable capability ensure that no machining challenge is too daunting, making us the definitive solution for industries in pursuit of excellence.
- With a rich history spanning two decades, we stand as stalwarts in the industry, leveraging an extensive wealth of production experience paired with substantial technical and process prowess. This ensures not only top-tier quality but also a spirit of innovation, setting us apart as pioneering leaders in the realm of precision engineering. Our unwavering commitment to quality and visionary innovation has solidified our reputation as an esteemed industry vanguard.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Meticulous Evaluation of Incoming Materials
In our unwavering commitment to excellence, every raw material entering our warehouse undergoes an exhaustive and meticulous evaluation. We delve into every detail, analyzing everything from chemical compositions to physical attributes. Our dedication is unwavering as we require each supplier to provide a Certificate of Origin and a Declaration of Conformity. This meticulous selection ensures our custom robot CNC machining parts maintain tight tolerances and integrity. Our commitment to excellence is the hallmark of our superior quality assurance.
Rigorous In-Process Quality Assurance
Throughout our intricate machining processes, each component undergoes rigorous scrutiny to ensure dimensions and tolerances not only meet but often surpass strict specifications. With a comprehensive inspection protocol, we identify defects early, preventing non-conforming parts from advancing. This vigilant approach minimizes subpar outcomes, guaranteeing exceptional quality at every phase and ensuring the highest standard throughout our production journey.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) is a proactive strategic cornerstone, tackling potential production challenges from the outset. This methodology ensures obstacles are addressed before mass production, with meticulous precision mitigating quality risks. Our dedication to excellence is embedded in every step, consistently exceeding industry standards and ensuring our products reach the pinnacle of quality benchmarks.
Comprehensive Final Inspection
Before any product leaves our facility, it undergoes an exhaustive final inspection, evaluating dimensions, visual appeal, and performance while meeting customer-specific requirements. This comprehensive process reflects our relentless pursuit of quality, ensuring each part meets our exacting standards. Our mission to deliver the finest products enhances our reputation for unparalleled excellence and reliability.
Packaging & Shipping
Company Profile
Founded in 2009 with deep roots stretching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. is a shining beacon of excellence in the high-precision component machining industry. For over two decades, we have been at the forefront of technological advancement, immersing ourselves in the pursuit of groundbreaking innovation and advanced technical research. Our unwavering dedication to precision engineering has firmly positioned us as pioneers and leaders in this dynamic field. At Donghui, we boast a remarkable reservoir of technical expertise, earning an enviable reputation that cements our status as an industry leader. Our unrivaled proficiency in precision medical machining services empowers us to achieve extraordinarily tight tolerances and flawlessly pristine surface finishes. This unparalleled quality distinctly positions us as the premier choice within the demanding and critical medical sector.
With an extensive suite of resources, we proudly operate four strategically located production bases, thriving in the vibrant and bustling centers of Shenzhen and Guiyang, supported by our talented and expertly trained workforce of over 400 highly skilled employees. Donghui has masterfully crafted a robust and vertically integrated industry chain. This seamless network effectively combines research and development with production and delivery, ensuring that we consistently surpass our valued customers' diverse expectations with extraordinary efficiency and superior quality. Our state-of-the-art facilities are impeccably equipped to tackle the most intricate and challenging machining tasks, continuously upholding our legacy of excellence and groundbreaking innovations.
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)