Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we transcend mere duty; we passionately engage in the exquisite artistry and meticulous science that define precision manufacturing. Driven by an unwavering commitment to flawlessness, each component crafted by us is elevated to the pinnacle of craftsmanship and excellence. Our unmatched expertise shines brilliantly in the realm of high-end component fabrication, forging a path toward unparalleled precision and extraordinary excellence. Through our dedication and skill, we set new standards that redefine the possibilities of precision engineering. Leading the frontier of innovation, we specialize in crafting groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly cater to a broad spectrum of industries, precisely addressing diverse application needs, including:
- Medical and Biotech: Revolutionizing Healthcare With Unmatched PrecisionSupplying intricately crafted, high-precision components and cutting-edge solutions for revolutionary medical devices while consistently upholding the premium quality standards synonymous with our esteemed brand.
- Semiconductors: Driving Technological BreakthroughsSupporting the semiconductor industry with vital core components essential for chip production and related equipment, ensuring seamless operations and fostering innovation across the tech landscape.
- New Energy: Pioneering the Path to Sustainable InnovationActively contributing to the sustainable advancement of innovative energy equipment, spearheading eco-friendly technological innovations that pave the way for a greener future.
- Automotive: Energizing the Future of MobilityProviding crucial components that fuel innovation in the automotive sector, playing a significant role in the evolution of smart and electric vehicles, thus energizing the future of mobility.
Main Products: Expertise in Tailored Customization
- We specialize in crafting bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unmatched precision, extraordinary quality, and a commitment to innovation.
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, setting new benchmarks in the art of metal engineering.
- With a legacy of excellence spanning over two decades, we meticulously 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. We are at the forefront of technological advancements, constantly pushing the boundaries to meet the evolving demands of the industry with unmatched proficiency.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Evaluation of Incoming Materials
At the core of Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., every piece of raw material entering our prestigious facility is subjected to an intensive and unparalleled evaluation process. This rigorous scrutiny ensures absolute alignment with our elite quality standards, involving a comprehensive and exhaustive analysis of both chemical compositions and physical attributes. To uphold our relentless pursuit of perfection, every supplier is required to provide a Certificate of Origin along with an officially sanctioned Declaration of Conformity. This meticulous procedure guarantees that only the most refined and pure materials are selected for our precision-driven medical machining projects. Our unwavering protocols reflect an steadfast commitment to delivering extraordinary quality, consistently achieving the unparalleled perfection we promise.
Meticulous Precision in In-Process Quality Control
Within our cutting-edge machining operations, every component undergoes meticulous scrutiny to ensure that dimensions and tolerances not only meet but exceed our stringent specifications. Our continuous and vigilant inspection protocol is expertly designed to pinpoint potential defects at the earliest possible stage. This proactive approach is crucial in intercepting non-conforming parts, significantly reducing the risk of substandard products. This ensures superior quality throughout every phase of the production journey, epitomizing our unwavering commitment to unmatched excellence.
Innovative and Visionary First Article Inspection (FAI)
Our First Article Inspection (FAI) stands as a pivotal strategic initiative, vital for the early identification and swift rectification of potential production challenges. This visionary approach guarantees immediate resolution of issues, preventing their escalation into significant production obstacles. The precision and thoroughness of our FAI dramatically mitigate quality risks, ensuring our products consistently adhere to the highest industry standards. This unwavering dedication to excellence permeates our entire production cycle, enabling us to consistently surpass the most demanding quality benchmarks and bolstering our reputation for superior quality.
Comprehensive and Rigorous Final Inspection
Before leaving our distinguished facility, each product is subjected to a comprehensive and rigorous final inspection. This pivotal evaluation encompasses every aspect including dimensions, appearance, performance, and any specific customer requirements. Our thorough inspections symbolize our relentless pursuit of quality, ensuring that every dispatched part meets our rigorous standards. We remain unwavering in our mission to deliver only the highest-caliber products to our esteemed clientele, upholding our exemplary reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its establishment in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has been a paragon of high-precision component machining, with roots stretching proudly back to 2002. Our illustrious journey of over twenty years has seen relentless innovation that thrusts us to the forefront of technical research and development. We stand as both pioneering leaders and visionary architects in the precision engineering landscape. Our Journey The exceptional voyage of Shenzhen Donghui has catapulted us to remarkable technical heights, solidifying our esteemed reputation as the market's undisputed leaders. Our unparalleled precision in medical machining ensures the achievement of extraordinarily tight tolerances and immaculate surface finishes, making us the partner of choice for the rigorous demands of the medical industry.
Boasting four strategically located production bases in the vibrant hubs of Shenzhen and Guiyang, supported by an outstanding workforce comprising over 400 highly skilled professionals, Donghui has meticulously engineered a comprehensive and vertically integrated industry chain. This chain seamlessly spans research, development, production, and delivery, enabling us to consistently exceed a broad spectrum of customer demands with exceptional efficiency and stellar quality. Our state-of-the-art facilities are expertly designed to tackle the most complex and demanding machining projects, maintaining our revered reputation for excellence and innovative 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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