Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere duty; it is fueled by an ardent passion for the art and science of precision manufacturing. Our unparalleled expertise illuminates the domain of high-end component fabrication, guiding the way to exceptional precision. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions cater to a diverse array of industries, effectively addressing a variety of applications, including:
- Medical and Biotech: Delivering expertly crafted high-precision components along with innovative solutions for cutting-edge medical devices, maintaining the highest quality standards.
- Semiconductors: Empowering the chip manufacturing sector and its related equipment by providing essential core components critical to industry success.
- New Energy: Driving the dynamic and sustainable growth of pioneering energy equipment, promoting eco-friendly technological development.
- Automotive: Supplying crucial components that drive innovation within the automotive industry, supporting the progression of smart and electric vehicles.
Main Products
- We specialize in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, delivering unparalleled precision and superior quality.
Why choose us
Core Advantages
- An Arsenal of Superiority: A Fleet of Excellence Our operations proudly display a remarkable collection of over 300 advanced world-renowned machines, cutting-edge technology that empowers usto expertly handle a comprehensive array of equipment categories. This extraordinary capability enables us to skillfully deliver the complex machining requirements of diverse industries with unmatched precision and efficiency.
- With a storied legacy spanning two decades, we harness extensive production experience alongside significant technical and process expertise, ensuring outstanding quality and visionary innovation. This positions us as frontrunners in the world of precision engineering.
Cutting-Edge Production Equipment: State-of-the-Art Technology
High-Precision Inspection Equipment: Assurance of Excellence
Quality Ensurance
Unparalleled Incoming Material Inspection
Every piece of material entering our warehouse is meticulously examined to ensure an exhaustive evaluation of its integrity and suitability for use. Our comprehensive analysis encompasses both chemical composition and a detailed visual inspection of physical attributes. We steadfastly require each supplier to furnish a Certificate of Origin and a stamped Declaration of Conformity, proving the top-notch quality of materials selected for our precision medical machining. This rigorous vetting process guarantees materials of the utmost purity and integrity, perfectly embodying our unwavering promise of superior quality.
Rigorous In-Process Quality Assurance
During our intricate machining procedures, every component is examined with extreme precision to ensure its dimensions and tolerances not only meet but surpass our high standards. Our proactive inspection protocol meticulously intercepts potential flaws at early stages, preventing any non-compliant parts from moving forward. This vigilant strategy significantly reduces the risk of inferior products, ensuring unmatched quality at every production phase and sustaining our commitment to excellence throughout the entire operation.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) is a cornerstone in identifying and addressing potential production hurdles before they escalate. This anticipatory strategy is crucial in mitigating quality risks, ensuring our products consistently achieve the highest standards without compromise. This dedication to excellence is woven into every facet of our production process, reinforcing our commitment to not just meet but surpass industry benchmarks.
Thorough and Exacting Final Inspection
Prior to any product's departure from our facility, it undergoes a thorough and exacting final inspection. This process critically assesses dimensions, visual attributes, performance, and any specific customer requirements. Our rigorous final inspection protocol embodies our relentless dedication to quality, ensuring every component fulfills our stringent standards. We are committed to delivering only the finest quality products to our esteemed customers, safeguarding our legacy of excellence and dependability.
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 beacon of unmatched expertise in the realm of high-precision basic component machining. With an unwavering commitment to innovation over the past two decades, we have deeply entrenched ourselves in technical research, establishing our reputation as pioneers in the field of precision engineering. We have cultivated a vast reservoir of technical prowess, earning an exemplary market reputation that distinguishes us as frontrunners in the industry. Our capabilities in precision medical machining services are unparalleled, consistently achieving exceptionally tight tolerances and immaculate surface finishes, positioning us as the preferred choice within the medical sector.
With four strategically located production bases in the dynamic centers of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has constructed a formidable and vertically integrated industry chain. This chain seamlessly interlaces research and development, production, and delivery, ensuring that we not only meet but exceed the diverse demands of our clients with remarkable efficiency and unmatched quality. Our cutting-edge facilities are equipped to tackle the most intricate and stringent machining tasks, reinforcing our standing for excellence and innovative breakthroughs.
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)