Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we don't just fulfill a role; we passionately pursue the exquisite artistry and meticulous science that define precision manufacturing. With an unwavering commitment to perfection, we elevate every component to the highest levels of craftsmanship and excellence. Our unmatched expertise shines brilliantly in the high-end component fabrication sector, paving a path toward unmatched precision and extraordinary excellence. Leading the charge in innovation, we specialize in crafting groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly cater to a vast array of industries, precisely addressing diverse application needs, including:
- Medical and Biotech: Revolutionizing Healthcare with Unmatched PrecisionProviding meticulously crafted, high-precision components and pioneering solutions for groundbreaking medical devices, consistently upholding the premium quality standards synonymous with our esteemed brand.
- Semiconductors: Driving Technological Breakthroughs with PrecisionSupporting the semiconductor industry with essential core components vital for chip production and related equipment, ensuring flawless operations and fostering innovation.
- New Energy: Leading the Charge in Sustainable InnovationActively contributing to the sustainable advancement of innovative energy equipment, propelling eco-friendly technological innovations forward.
- Automotive: Powering the Future of MobilitySupplying crucial components that drive innovation in the automotive sector, playing a significant role in the evolution of smart and electric vehicles.
Main Products: Mastery in Tailored Customization
- We excel in crafting bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unparalleled precision and exceptional 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
Meticulous Evaluation of Incoming Materials
Upon entering our renowned facility, each raw material undergoes an exhaustive and rigorous evaluation process, meticulously designed to achieve our exceptional quality standards. This profound analysis entails an in-depth investigation into chemical compositions and a meticulous inspection of physical properties. In our relentless pursuit of perfection, we require suppliers to provide a Certificate of Origin paired with a duly endorsed Declaration of Conformity. This meticulous process guarantees that only materials of unmatched integrity and purity are chosen for our precision-centric medical machining endeavors. Our robust protocol seamlessly aligns with our unwavering promise to deliver unparalleled quality, resonating the perfection we consistently uphold.
Exact In-Process Quality Control
Within our state-of-the-art machining operations, each component undergoes meticulous scrutiny to ensure that dimensions and tolerances not only meet but consistently exceed our stringent specifications. Our vigilant, continuous inspection protocol expertly identifies potential defects early on, preventing non-conforming parts from progressing further in the process. This diligent methodology is crucial in minimizing risks of substandard goods, ensuring superior quality at every stage, and maintaining unmatched excellence throughout the production journey, exemplifying our steadfast commitment to quality.
Trailblazing and Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) stands as a pivotal strategic initiative, crucial for the early detection and swift resolution of potential production challenges. This proactive stance ensures that any issues are efficiently addressed before escalating into significant production concerns. The meticulous precision of our FAI substantially mitigates quality risks, ensuring our products consistently meet the highest industry standards. This relentless dedication to excellence permeates the entire production cycle, ensuring we consistently exceed the most stringent quality benchmarks and fortifying our reputation for superior quality.
Thorough and Rigorous Final Inspection
Before our products leave our esteemed facility, they undergo a comprehensive and rigorous final inspection process. This meticulous evaluation encompasses all aspects, including dimensions, appearance, performance, and customer-specific requirements. Our thorough inspections embody our relentless dedication to quality, ensuring that every dispatched part adheres to our stringent standards. We remain steadfast in our mission to deliver only the highest-caliber products to our valued customers, upholding our outstanding reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. is a beacon of innovation in high-precision component machining, with roots stretching back to 2002. Our unwavering dedication to advancing technical research has earned us an esteemed reputation as pioneers in precision engineering, shining brightly in over two decades of relentless pursuit for excellence. Our journey has soared to extraordinary technical heights, elevating our market reputation to the highest echelons as the unrivaled leaders in our field. Our unmatched expertise in precision medical machining ensures that we consistently achieve exceptionally tight tolerances and pristine surface finishes, making us the ultimate choice for partners in the medical industry.
Boasting four strategically placed production bases located in the dynamic hubs of Shenzhen and Guiyang, powered by an elite team of over 400 exceptionally gifted professionals, Donghui has masterfully crafted a fully integrated industry chain. This chain harmoniously merges research and development with production and delivery, enabling us to consistently surpass our customers' expectations with unparalleled efficiency and supreme quality. Our state-of-the-art facilities are designed to tackle even the most complex and demanding machining tasks, ensuring our continued reputation for excellence and visionary 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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