Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our drive transcends mere responsibility, fueled by a passionate zeal for the sophisticated artistry and meticulous science inherent in manufacturing excellence. Our specialized knowledge acts as a beacon of precision, illuminating the realm of elite component fabrication with unparalleled expertise and commitment. We stand at the forefront of innovation, pioneering the creation and production of state-of-the-art intelligent automation equipment. Our trailblazing solutions serve a diverse array of industries, addressing a vast array of applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and pioneering solutions for the most advanced medical devices.
- Semiconductors: Facilitating chip production and its associated equipment with essential core components of pivotal importance.
- New Energy: Supporting the progressive and eco-friendly evolution of cutting-edge energy equipment.
- Automotive: Supplying indispensable components to propel innovation within the automotive sector, driving the development of intelligent and electric vehicles forward.
Main Products
- Specialized non-standard customized components, comprehensively serving the medical, automation, semiconductor, and automotive industries with precision.
Why choose us
Core Advantages
- A Fleet of Excellence: Discover our outstanding range of equipment that defines reliability and precision in the world of CNC machining. Our operations boast an impressive collection of over 300: Explore our expansive and meticulously curated selection of machines. branded: Recognized brands that ensure superior performance and unmatched quality. machines: Cutting-edge machines that set the standard for excellence and innovation., ensuring we cover a vast array of equipment categories. This allows us to adeptly meet the diverse machining requirements across numerous industries with precision and efficiency. Our comprehensive inventory empowers us to deliver customized solutions that align with the specific demands of your sector, ensuring seamless integration and outstanding results.
- With a legacy spanning 20 years, we bring a wealth of production experience, coupled with significant technical and process advantages, ensuring top-notch quality and innovation. Our history is rich with achievements, and our future is bright with potential, as we continuously strive to surpass industry standards and drive forward with cutting-edge advancements.
State-of-the-Art Production Equipment: Embrace the future of manufacturing with our advanced production systems that promise efficiency and precision at every turn.
High-Precision Inspection Equipment: Trust in our precision inspection technology to ensure every product meets stringent quality standards, delivering consistency and excellence in every piece.
Quality Ensurance
Meticulous Incoming Material Inspection
Every piece of raw material entering our warehouse is subjected to an exhaustive and stringent evaluation process. This includes a meticulous analysis of the chemical composition and a thorough examination of physical properties. Our steadfast dedication to excellence requires that each supplier provides a Certificate of Origin along with a stamped Declaration of Conformity, ensuring only the finest materials are entrusted for use in our high-precision medical machining services. This rigorous authentication guarantees that the materials maintain the highest levels of integrity and purity, adhering to our unwavering standards.
Rigorous In-Process Quality Control
Throughout the intricate machining process, every component is meticulously scrutinized to confirm its dimensions and tolerances satisfy our exacting specifications. This diligent and continuous inspection protocol intercepts defects proactively, preventing non-conforming parts from advancing to further stages. This vigilant approach effectively minimizes the risk of producing large quantities of substandard goods, ensuring superior quality at every phase of production.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) serves as a cornerstone strategy that identifies and resolves potential production challenges early on, preventing any issues from escalating into mass production. This comprehensive and precise FAI process is essential for minimizing quality risks and ensuring that our products consistently meet the pinnacle of standards, reflecting our dedication to excellence throughout the production cycle.
Thorough Comprehensive Final Inspection
Before any product leaves our facility, it undergoes a detailed final inspection process that rigorously evaluates dimensions, visual appearance, and performance, alongside any customer-specific requirements. This comprehensive inspection is a testament to our commitment to quality, ensuring that every part dispatched meets our exacting standards, delivering only the highest quality products to our esteemed customers.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has dedicated itself to the art and science of high-precision basic component machining. With an unwavering commitment 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 technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving 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 exceptional efficiency and unmatched quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our reputation for excellence and 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)