Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we don't just engage in work; we immerse ourselves in the exquisite craft and meticulous science of precision manufacturing. Our relentless pursuit of perfection elevates every component to the highest standards of craftsmanship and excellence. Our unparalleled expertise shines brilliantly in the domain of high-end component fabrication, paving the way for exceptional precision and extraordinary excellence. Leading the forefront of innovation, we excel in developing groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly cater to a wide array of industries, precisely meeting diverse application needs, including:
- Medical and Biotech: Revolutionizing Healthcare with Unmatched PrecisionProviding intricately crafted, high-precision components and advanced solutions for revolutionary medical devices, consistently maintaining the premium quality standards linked with our esteemed brand.
- Semiconductors: Driving Technological BreakthroughsSupporting the semiconductor industry with essential core components vital for chip production and related equipment, ensuring flawless operations and fostering innovation.
- New Energy: Pioneering the Path to Sustainable InnovationActively contributing to the sustainable advancement of innovative energy equipment, leading eco-friendly technological innovations.
- Automotive: Energizing the Future of MobilitySupplying key components that drive innovation in the automotive sector, significantly influencing the evolution of smart and electric vehicles.
Main Products: Expertise in Tailored Customization
- We specialize in creating bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unmatched precision and extraordinary 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, setting new benchmarks in the art of metal engineering. Our commitment to excellence and innovation ensures that every project is executed with impeccable quality and groundbreaking foresight, redefining the standards in precision engineering.
- 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. We are at the forefront of technological advancements, constantly pushing the boundaries to meet the evolving demands of the industry with unmatched proficiency. Our dedication to advancing technology and innovation fuels our ability to cater to the intricate machining demands with a level of expertise that remains unsurpassed in the industry.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unrivaled Incoming Material Evaluation
At the very core of Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., every raw material entering our illustrious facility is subjected to an exceptional, unmatched evaluation process. This meticulous examination ensures compliance with our prestigious quality standards, incorporating a comprehensive analysis of chemical compositions and physical properties. In our unyielding quest for perfection, every supplier is required to provide a Certificate of Origin along with a formally verified Declaration of Conformity. This rigorous selection process guarantees the incorporation of only the highest-quality, purest materials in our precision-focused medical machining projects. Our unwavering protocols epitomize our steadfast dedication to delivering extraordinary quality, consistently achieving the perfection we pledge.
In-Process Quality Control with Precision
Within our cutting-edge machining operations, every component undergoes meticulous examination to ensure that dimensions and tolerances not only meet but exceed our rigorous specifications. Our continuous, vigilant inspection protocol is expertly crafted to detect potential defects at the earliest possible stage. This proactive methodology is crucial in intercepting non-conforming parts, vastly reducing the risk of inferior products. This guarantees superior quality throughout every phase of the production journey, exemplifying our unwavering dedication to unmatched excellence.
Innovative and Visionary First Article Inspection (FAI)
Our First Article Inspection (FAI) embodies a pivotal strategic initiative, essential for the early detection and swift resolution of potential production hurdles. This insightful approach ensures prompt addressing of issues, preventing their escalation into significant production barriers. The precision and attentiveness of our FAI substantially diminish quality risks, ensuring our products consistently meet the industry's highest standards. This unwavering commitment to excellence permeates our entire production process, enabling us to continually surpass the most stringent quality benchmarks and reinforcing our repute for superior quality.
Comprehensive and Detailed Final Inspection
Before departing our esteemed facility, every product is subjected to a comprehensive and detailed final inspection. This critical evaluation includes dimensions, appearance, performance, and any specific customer requirements. Our thorough inspections epitomize our relentless pursuit of quality, ensuring that every dispatched part aligns with our exacting standards. We remain steadfast 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
Established in 2009, the esteemed Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. draws on a rich legacy that stretches back to 2002, marking itself as a beacon in high-precision component machining. Over two decades of unwavering innovation have propelled us to the apex of technical research, cementing our place as both pioneers and visionaries in the precision engineering realm. Our Journey Our remarkable journey has elevated us to unprecedented technical heights, fortifying our esteemed reputation in the market as the unrivaled leaders in our field. Our unmatched expertise in precision medical machining guarantees the realization of incredibly tight tolerances and pristine surface finishes, establishing us as the preferred partner for the medical industry's demands.
Boasting Four strategically positioned production bases in the dynamic centers of Shenzhen and Guiyang, powered by an exceptional team of over 400 highly skilled professionals, Donghui has masterfully crafted a comprehensive and vertically integrated industry chain. This chain flawlessly encompasses research and development, production, and delivery, empowering us to consistently surpass our customers' diverse demands with extraordinary efficiency and unmatched quality. Our cutting-edge facilities are meticulously crafted to tackle the most intricate and challenging machining projects, preserving our honored 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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