Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not just committed; we are passionately driven by the artistry and intricate science of precision manufacturing, dedicated to achieving unmatched excellence in every endeavor. Our unparalleled expertise shines brightly in the field of high-end component fabrication, serving as a beacon of precision and meticulous craftsmanship. We are trailblazers in designing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions are tailored for a wide array of industries, expertly addressing varied applications, which include:
- Medical and Biotech: With a commitment to excellence, we deliver meticulously engineered high-precision components and innovative solutions for cutting-edge medical devices, steadfastly upholding the highest quality standards.
- Semiconductors: By providing essential core components, we play a crucial role in empowering chip production and its related equipment, driving success in the semiconductor industry.
- New Energy: We are actively engaged in the dynamic and sustainable progress of innovative energy equipment, championing eco-friendly technological advancement.
- Automotive: We supply vital components that propel innovation in the automotive sector, supporting the development of intelligent and electric vehicles.
Main Products
- We specialize in the creation of non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, guaranteeing precision that is second to none and quality that is unmatched.
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
Unparalleled Examination of Incoming Materials
In our relentless pursuit of perfection, every raw material that enters our warehouse is subjected to a comprehensive and rigorous examination. Our scrupulous analyses meticulously evaluate both the chemical composition and the physical properties, ensuring unparalleled precision. We demand exacting standards, requiring every supplier to furnish a Certificate of Origin and a stamped Declaration of Conformity. This rigorous process ensures that only the highest quality materials are utilized in our precision medical machining services. Our steadfast commitment to this authentication process guarantees materials of supreme integrity and purity, perfectly aligning with our dedication to unmatched quality.
Comprehensive In-Process Quality Assurance
Amid our intricate machining operations, each component undergoes a meticulous scrutiny to ensure that its dimensions and tolerances do more than just meet-they exceed our rigorous specifications. Our diligent, continuous inspection protocol is expertly crafted to identify potential defects early, thus preventing subpar parts from advancing through the production stages. This vigilant strategy is essential in curtailing the emergence of inferior goods, assuring superior quality at every phase of production, and upholding excellence throughout the entire process.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) is not just a process-it is a cornerstone strategy that is vital for early detection and resolution of potential production issues. This foresighted approach precludes problems from escalating in mass production. The exhaustive and precise nature of our FAI is indispensable in mitigating quality risks, ensuring our products consistently achieve the utmost standards of excellence. This unwavering dedication to quality pervades every facet of our production cycle, ensuring we not only meet but exceed the most rigorous benchmarks of quality.
Meticulous and Thorough Final Inspection
Before any product departs our facility, it is subjected to an exhaustive and meticulous final inspection. This comprehensive process rigorously assesses dimensions, visual aesthetics, performance, and any specific customer requirements. Our all-encompassing inspection is a testament to our unyielding commitment to excellence, ensuring that every component dispatched meets our stringent standards. We are resolute in delivering only the pinnacle of quality to our esteemed customers, proudly upholding our reputation for exceptional reliability and unmatched excellence.
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. Here at Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we have amassed a wealth of unrivaled technical expertise, earning a stellar market reputation that sets us apart as trailblazers in the industry. Our capabilities in precision medical machining services are simply unparalleled, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled 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 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)