Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment goes beyond mere duty. It is fueled by a passionate zeal for the artistry and meticulous science of precision manufacturing. Our unparalleled expertise serves as a beacon in the world of high-end component fabrication, illuminating the way to unparalleled precision and excellence. As pioneers in the development and production of groundbreaking intelligent automation equipment, we craft cutting-edge solutions that cater to a multitude of industries, effectively addressing diverse applications, including:
- Medical and Biotech: Delivering meticulously crafted high-precision components and innovative solutions for the most advanced medical devices, ensuring the highest standards of quality are consistently met.
- Semiconductors: Empowering the production of chips and supporting equipment by providing essential core components critical to the industry's advancement.
- New Energy: Engaging in the dynamic and sustainable advancement of cutting-edge energy equipment, propelling eco-friendly technological innovations forward.
- Automotive: Supplying key components that drive innovation within the automotive industry, supporting the evolution of smart and electric vehicles.
Main Products
- We excel in producing non-standard, customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and superior quality with every product.
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. Our extensive array of advanced machinery positions us at the forefront of industry innovation, allowing us to push the boundaries of what is possible and deliver solutions tailored to each client's unique specifications.
- 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. Our dedication to excellence sets us apart as pioneers in the realm of precision engineering. We continually strive to exceed expectations, ensuring every product we produce meets the highest standards of quality and performance.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Immaculate Incoming Material Examination
Each raw material inducted into our warehouse undergoes a comprehensive and meticulously detailed assessment. This includes an in-depth analysis of the chemical composition coupled with a careful examination of the physical attributes. We maintain an indomitable commitment to quality by mandating that every supplier furnishes a Certificate of Origin along with a stamped Declaration of Conformity. Such rigorous processes ensure that we only select superior materials for our high-precision medical machining services. Our authenticate process is designed to guarantee these materials meet the pinnacle of integrity and purity, flawlessly aligning with our relentless dedication to excellence.
In-Depth In-Process Quality Assurance
In the realm of our precise machining operations, every component is subjected to an exhaustive examination to ensure that its dimensions and tolerances not only meet but transcend our rigorous specifications. Our continuous inspection strategy is meticulously crafted to detect potential defects promptly, thus preventing any non-conforming parts from advancing through the production stages. This vigilant strategy is crucial in diminishing the possibility of substandard goods, thereby assuring exceptional quality at each juncture of production and sustaining our tradition of excellence throughout the entire manufacturing journey.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) strategy is a fundamental component for early identification and rectification of potential production hindrances. This forward-thinking measure effectively mitigates the risk of issues escalating during mass production. The thorough and precise execution of our FAI process is vital in reducing quality risks, ensuring our products consistently reach the zenith of standards. This commitment to superior quality infiltrates every segment of the production cycle, ensuring that we surpass the highest benchmarks of quality.
Rigorous Comprehensive Final Inspection
Prior to any product leaving our premises, it is subjected to an exacting and thorough final inspection procedure. This rigorous process evaluates dimensions, visual aesthetics, performance, and any client-specific criteria. Our comprehensive inspection regimen exemplifies our unwavering commitment to quality, guaranteeing that every part dispatched from our facility adheres to our exacting standards. We are resolute in delivering only the pinnacle of quality products to our esteemed customers, consistently upholding our reputation for 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. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of unparalleled technical expertise, earning us a stellar market reputation that distinguishes us as a leader in the industry. Our capabilities in precision medical machining services are simply unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, which position us as the preferred choice in the medical sector.
With four strategically located production bases in the bustling and technologically vibrant hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled and highly trained employees, Donghui has crafted a robust and vertically integrated industry chain. This chain seamlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle even the most intricate and demanding machining tasks, maintaining our reputation for excellence and groundbreaking innovation.
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)