Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment reaches beyond mere duty; it is a passionate quest for the exquisite artistry and meticulous science that defines the realm of precision manufacturing. With an unwavering dedication to achieving perfection and flawlessness, we elevate each component to the zenith of craftsmanship and excellence. Our unparalleled expertise radiates brilliantly in the world of high-end component fabrication, pioneering a path toward unmatched precision and extraordinary excellence. Leading the charge in innovation, we specialize in engineering groundbreaking intelligent automation equipment. Our cutting-edge solutions expertly cater to a wide array of industries, precisely addressing diverse application needs, including:
- Medical and Biotech: Revolutionizing Healthcare with Precision: Delivering meticulously crafted, high-precision components and state-of-the-art solutions for pioneering medical devices, unwaveringly upholding the exceptional quality standards that define our brand.
- Semiconductors: Driving Technological Breakthroughs: Supporting the semiconductor industry with indispensable core components vital for chip production and related equipment, ensuring seamless operations and fostering groundbreaking innovation.
- New Energy: Pioneering the Path to Sustainable Innovation: Actively contributing to the sustainable advancement of cutting-edge energy equipment, propelling eco-friendly technological innovations forward.
- Automotive: Energizing the Future of Mobility: Supplying essential components that drive innovation within the automotive sector, playing a pivotal role in the evolution of smart and electric vehicles.
Main Products: Expertise in Customization
- We excel in the art of crafting bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unparalleled precision and superior quality.
Why choose us
https://donghuiprecision.en.made-in-china.com/contact-info.html
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 legacy of excellence that spans over two decades, we harness our vast production expertise combined with outstanding technical prowess and process knowledge. Our unwavering commitment ensures not only superior quality but also innovative foresight, establishing us as pioneers in the field of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Incoming Material Assessment
Every raw material that enters our esteemed facility is subjected to a rigorous and comprehensive evaluation, ensuring alignment with our extraordinary standards of quality. Our detailed assessments encompass thorough chemical composition analysis and meticulous physical property inspections. In our unwavering pursuit of excellence, we mandate that our suppliers provide a Certificate of Origin alongside a properly stamped Declaration of Conformity. This ensures that only materials of unmatched integrity and purity are selected for our precision-driven medical machining solutions. Such a stringent protocol is a testament to our dedication to deliver unparalleled quality, reflecting our unwavering promise of perfection.
Meticulous Quality Control During Production
In our state-of-the-art machining processes, each component is meticulously scrutinized to ensure compliance with dimensions and tolerances that surpass our rigorous specifications. Our diligent, ongoing inspection protocol is designed to identify any potential defects at an early stage, effectively preventing the progression of non-conforming parts. This vigilant approach is crucial for minimizing the risk of substandard products, ensuring superior quality at every stage of production. It exemplifies our steadfast commitment to maintaining excellence throughout the entire process.
Strategic and Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) serves as a vital strategic initiative, essential for early detection and resolution of potential production challenges. This proactive method ensures that issues are efficiently addressed before they can escalate into significant production obstacles. The meticulous precision of our FAI reduces quality risks, ensuring our products consistently meet the highest industry standards. Our dedication to excellence permeates the entire production cycle, enabling us to consistently exceed even the most stringent quality benchmarks, thereby solidifying our reputation for unmatched quality.
Thorough and Exhaustive Final Inspection
Prior to leaving our prestigious facility, each product undergoes an exhaustive and rigorous final inspection. This process meticulously evaluates dimensions, appearance, performance, and adherence to customer-specific requirements. Our comprehensive inspections embody our relentless dedication to quality, ensuring that every dispatched part meets our exacting standards. We remain unwavering in our mission to deliver only the highest-quality products to our esteemed customers, thereby upholding our stellar reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has a prestigious history stretching back to 2002. During this time, we have emerged as an illustrious leader in the realm of high-precision component machining. For over two decades, our ceaseless commitment to pioneering innovations has propelled us to the cutting edge of technical research, securing our status as pioneers in the precision engineering sector. We have elevated our technical expertise to an extraordinary echelon, which reinforces our esteemed market position, distinguishing us as indisputable authorities in the field. Our unrivaled proficiency in precision medical machining guarantees the achievement of exceptionally tight tolerances and impeccable surface finishes. This firmly establishes us as the foremost collaborator for the medical industry, trusted for our exceptional capabilities.
With four strategically positioned production bases, located in the vibrant hubs of Shenzhen and Guiyang, supported by a distinguished team of over 400 exceptionally skilled professionals, Donghui has adeptly engineered a comprehensive and vertically integrated industry chain. This intricate network seamlessly fuses research and development, production, and delivery, enabling us to not just meet but consistently exceed our customers' diverse needs with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are expertly designed to handle the most intricate and challenging machining projects, upholding our renowned reputation for excellence and pioneering leadership.
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)
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