Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not just committed; we are passionately devoted to the exquisite artistry and meticulous science that embodies precision manufacturing. Our unwavering pursuit of perfection elevates every component to new heights of craftsmanship and excellence. Our unmatched expertise radiates in the domain of high-end component fabrication, leading the way toward unparalleled precision and extraordinary excellence. Leading the charge in innovation, we specialize in the creation of revolutionary intelligent automation equipment. Our cutting-edge solutions skillfully cater to a wide array of industries, precisely fulfilling diverse application needs, including:
- Medical and Biotech: Transforming Healthcare with Precision: Delivering meticulously engineered, high-precision components and cutting-edge solutions for innovative medical devices, consistently maintaining the premium quality standards that define our brand.
- Semiconductors: Catalyzing Technological Advancements: Supporting the semiconductor industry with vital core components essential for chip production and related equipment, ensuring seamless operations while fostering innovation.
- New Energy: Leading the Charge in Sustainable Innovation: Actively driving the sustainable progression of innovative energy equipment, championing eco-friendly technological breakthroughs.
- Automotive: Powering the Future of Mobility: Supplying crucial components that drive innovation in the automotive industry, playing a pivotal role in the advancement of smart and electric vehicles.
Main Products: Masters of Customization
- We excel in the art of crafting bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors with unmatched precision and superior quality.
Why choose us
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Core Advantages
- A Fleet of Excellence Our operations proudly showcase a remarkable and diverse collection of over 300 state-of-the-art machines. renowned machines, each of which empowers us to expertly cater to a broad array of equipment categories. This exceptional capability enables us to address the intricate and demanding machining needs of a myriad of industries with unmatched precision and efficiency, delivering unparalleled results every time.
- With a rich legacy of excellence spanning more than twenty years, we leverage our extensive production expertise, outstanding technical acumen, and deep process knowledge. Our unwavering dedication guarantees not only superior quality but also innovative foresight, firmly establishing us as trailblazers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Evaluation of Incoming Materials
Every raw material that graces our esteemed facility is subject to a thorough and stringent evaluation process, ensuring alignment with our unparalleled quality benchmarks. Our meticulous evaluations entail comprehensive chemical analyses and detailed inspections of physical attributes. To uphold our unwavering commitment to excellence, we mandate that suppliers furnish a Certificate of Origin and a duly endorsed Declaration of Conformity. This ensures that only materials of the highest integrity and purity are selected for our precision-driven medical machining. Our rigorous protocols seamlessly integrate with our dedication to delivering unmatched quality, echoing our timeless promise of perfection.
In-Process Quality Control with Precision and Care
Within our state-of-the-art machining operations, every component is subjected to meticulous scrutiny, ensuring dimensions and tolerances not only meet but exceed our rigorous specifications. Our diligent and continuous inspection process is adept at identifying potential defects at the earliest stages, thus preventing non-conforming parts from progressing. This vigilant strategy is crucial in minimizing the risk of substandard products, guaranteeing superior quality at every phase and preserving excellence throughout the process. It underscores our unwavering commitment to absolute quality.
Strategically Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) is a strategic cornerstone, essential for the early detection and resolution of potential production challenges. This proactive approach ensures issues are adeptly addressed before they escalate into major production hurdles. The exhaustive precision of our FAI mitigates quality risks, ensuring our products consistently meet and surpass top industry standards. Our commitment to excellence permeates every aspect of the production cycle, allowing us to consistently exceed even the most rigorous quality benchmarks and solidify our outstanding reputation for superior quality.
Comprehensive and Exhaustive Final Inspection
Before our products depart from our valued facility, they are subject to an exhaustive and rigorous final inspection. This meticulous process evaluates dimensions, appearance, performance, and specific customer requirements. Our thorough inspections epitomize our relentless pursuit of quality, ensuring every component dispatched aligns with our precise standards. Our unwavering mission is to deliver products of the highest caliber to our esteemed customers, steadfastly maintaining our sterling reputation for excellence and dependability.
Packaging & Shipping
Company Profile
Established in 2009, with a rich legacy that dates back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has blossomed into a shining beacon in the sphere of high-precision component machining. For over 20 years, our relentless pursuit of groundbreaking innovations has propelled us to the forefront of technical research, affirming our place as trailblazers in the precision engineering world. We have ascended to a remarkable level of technical prowess that fortifies a revered market standing, marking us as undeniable leaders in the field. Our unmatched expertise in precision medical machining ensures the realization of astonishingly tight tolerances and flawless surface finishes, firmly establishing us as the premier partner for the medical industry.
With four strategically located production bases nestled in the dynamic centers of Shenzhen and Guiyang, powered by an elite team of over 400 exceptionally skilled professionals, Donghui has masterfully constructed a comprehensive and vertically integrated industry chain. This seamlessly weaves together research and development, production, and delivery, enabling us to not merely meet but consistently surpass our customers' varied requirements with exceptional efficiency and unrivaled quality. Our cutting-edge facilities are meticulously crafted to tackle the most complex and demanding machining tasks, preserving our illustrious 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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