Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not merely obligated but profoundly driven by a fiery passion for the exquisite artistry and intricate science of precision manufacturing. Our unparalleled expertise acts as a shining beacon in the domain of high-end component fabrication, casting a brilliant light on the journey to absolute precision. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, expertly addressing a variety of applications, including:
- Medical and Biotech: Ensuring the delivery of flawlessly engineered high-precision components and cutting-edge solutions for advanced medical devices, consistently maintaining the highest standards of quality.
- Semiconductors: Enabling chip production and related equipment by providing essential core components that are indispensable to industry triumph.
- New Energy: Actively participating in the vigorous and sustainable progress of pioneering energy equipment, promoting eco-friendly technological development.
- Automotive: Supplying critical components that drive innovation in the automotive sector, supporting the advancement of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and superior quality.
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 capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Meticulous Incoming Material Assessment
As each batch of raw material makes its way into our carefully monitored warehouse, it undergoes an exhaustive and meticulous examination process designed to uphold the pinnacle of quality standards. Our diligent analyses delve deeply into both chemical compositions and physical characteristics, ensuring a comprehensive evaluation. Every supplier is meticulously vetted, with a stringent requirement for a Certificate of Origin and a stamped Declaration of Conformity, safeguarding that only the most superior materials are selected for our high-precision medical machining endeavors. This unwavering dedication to authenticity underpins our commitment to the highest standards of integrity and purity, seamlessly aligning with our steadfast dedication to unparalleled excellence.
Rigorous Ongoing Quality Assurance
Embedded within our complex and precise machining processes is an unwavering commitment to quality, where each component is subjected to meticulous scrutiny. Our rigorous inspection protocol is a testament to our dedication to precision, ensuring that every component's dimensions and tolerances not only meet but exceed our stringent specifications. This vigilant, continuous inspection strategy is crafted to identify potential defects early, safeguarding against the advancement of non-conforming parts in the production chain. Such a proactive approach is instrumental in mitigating the risk of substandard goods, guaranteeing superior quality throughout every stage, and upholding excellence across the entire manufacturing process.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process stands as a cornerstone strategy, essential in identifying and mitigating potential production challenges from the onset. This proactive approach is crafted to preemptively resolve issues before they escalate into mass production, maintaining the integrity of our operations. The FAI process is a testament to our comprehensive and precise methodology, crucial in minimizing quality risks and ensuring our products consistently achieve the zenith of industry standards. This unwavering commitment to excellence is intricately woven into every facet of the production cycle, guaranteeing that we consistently meet and exceed the most stringent quality benchmarks.
Thorough and Detailed Final Inspection
Before our products leave the confines of our facility, they undergo a rigorous and meticulous final inspection process, one that evaluates dimensions, visual appearance, performance, and any customer-specific requisites. This comprehensive inspection not only underscores our relentless commitment to quality but ensures that each component sent from our facility meets our exacting standards. We remain unwavering in our dedication to delivering only the finest quality products to our esteemed customers, preserving our legacy of excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a bastion of expertise in high-precision basic component machining. Over the past two decades, our unwavering dedication to innovation has propelled us to the forefront of the precision engineering landscape, enabling us to delve deeply into technical research and affirm our position as pioneers in this field. At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we have amassed a wealth of technical expertise, which has earned us a stellar market reputation, distinguishing us as leaders in the industry. Our precision medical machining services are unparalleled, consistently achieving incredibly tight tolerances and impeccable surface finishes. This makes us the preferred choice in the medical sector, where precision and reliability are paramount.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This sophisticated chain seamlessly combines research and development, production, and delivery, enabling us to meet and exceed the diverse needs of our customers with outstanding efficiency and unmatched quality. Our state-of-the-art facilities are meticulously equipped to handle the most intricate and demanding machining tasks, ensuring our reputation for excellence and groundbreaking innovation remains unparalleled.
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)