Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we don't just fulfill our obligations; we immerse ourselves in the fine art and precise science that define the world of precision manufacturing. With a relentless pursuit of perfection, we transform each component into a masterpiece of craftsmanship and excellence. Our unparalleled expertise radiates in the domain of high-end component fabrication, paving the way for unmatched precision and exceptional excellence. At the forefront of innovation, we specialize in creating pioneering intelligent automation equipment. Our advanced solutions adeptly serve a vast array of industries, meticulously addressing diverse application requirements, including:
- Medical and Biotech: Transforming Healthcare Through Unmatched PrecisionDelivering intricately designed, high-precision components and leading-edge solutions for groundbreaking medical devices, consistently maintaining the superior quality standards that define our prestigious brand.
- Semiconductors: Catalyzing Technological InnovationsEmpowering the semiconductor industry with essential core components critical for chip manufacturing and related equipment, ensuring uninterrupted operations and fostering innovation.
- New Energy: Championing the Way to Sustainable InnovationVigorously contributing to the sustainable development of pioneering energy equipment, leading eco-friendly technological advancements.
- Automotive: Powering the Future of MobilitySupplying essential components that drive innovation in the automotive sector, playing a pivotal role in the evolution of smart and electric vehicles.
Main Products: Expertise in Customized Tailoring
- We excel in producing tailor-made, 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, setting new benchmarks in the art of metal engineering. Our fleet is a testament to our dedication, enabling us to cater to every conceivable requirement with finesse and excellence.
- 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, pushing the boundaries to meet the evolving demands of the industry with unmatched proficiency. Our journey has been one of relentless innovation, ensuring we stay ahead of the curve and deliver beyond expectations.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Superior Incoming Material Evaluation
At the very core of Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., every piece of raw material entering our prestigious facility is subjected to an intense, unmatched evaluation process. This meticulous scrutiny guarantees unwavering adherence to our superior quality standards, incorporating an exhaustive analysis of both chemical compositions and physical attributes. As part of our relentless quest for perfection, every supplier is required to provide a Certificate of Origin and an officially sanctioned Declaration of Conformity. This rigorous procedure ensures that only the most refined and purest materials are selected for our precision-focused medical machining projects. Our unwavering protocols are a testament to our commitment to delivering exceptional quality, consistently achieving the perfection we promise.
Precision In-Process Quality Control
In 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 crafted to identify potential defects at the earliest possible stage. This proactive approach is vital in intercepting non-conforming parts, significantly reducing the risk of substandard products. It guarantees superior quality throughout every phase of the production journey, epitomizing our unwavering commitment to unparalleled excellence.
Pioneering and Forward-Thinking First Article Inspection (FAI)
Our First Article Inspection (FAI) is a pivotal strategic initiative central to the early identification and swift resolution of potential production challenges. This innovative approach ensures prompt issue resolution, preventing escalation into significant production obstacles. The precision and meticulousness of our FAI dramatically mitigate quality risks, ensuring our products consistently meet the highest industry standards. This steadfast dedication to excellence permeates our entire production cycle, enabling us to consistently exceed the most stringent quality benchmarks and strengthening our reputation for superior quality.
Exhaustive and Thorough Final Inspection
Before leaving our esteemed facility, each product undergoes an exhaustive and thorough final inspection. This critical evaluation covers dimensions, appearance, performance, and any specific customer requirements. Our comprehensive inspections underscore our relentless pursuit of quality, ensuring every dispatched part meets our rigorous standards. We remain committed to delivering only the highest-caliber products to our valued customers, 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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