Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we don't just meet expectations; we redefine them with our fervent dedication to the exquisite artistry and meticulous science that form the bedrock of precision manufacturing. Driven by an unwavering passion for flawlessness, each component we produce is elevated to the pinnacle of craftsmanship and excellence, setting new benchmarks in the industry. Our unparalleled expertise stands out brilliantly in the high-end component fabrication arena, leading the way toward unmatched precision and remarkable excellence. We are the torchbearers of innovation, redefining the standards of excellence in this field. Positioned at the cutting edge of innovation, we are specialists in crafting groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly cater to a wide array of industries, perfectly addressing diverse application needs, including:
- Medical and Biotech: Transforming Healthcare with Unmatched Precision: Delivering meticulously crafted, high-precision components and cutting-edge solutions for revolutionary medical devices, we consistently uphold the premium quality standards that our brand is synonymous with, ensuring our place at the forefront of the medical industry.
- Semiconductors: Catalyzing Technological Advancements: Providing the semiconductor industry with essential core components crucial for chip production and associated equipment, we ensure seamless operations and foster groundbreaking innovation to drive technological progress.
- New Energy: Leading the Charge Toward Sustainable Innovation: We are actively pioneering the sustainable evolution of cutting-edge energy equipment, propelling eco-friendly technological innovations that pave the way for a greener future.
- Automotive: Powering the Future of Mobility: Supplying essential components that drive innovation in the automotive sector, we play a pivotal role in advancing smart and electric vehicles, contributing significantly to the future of mobility.
Main Products: Mastery in Customization
- Our expertise lies in crafting bespoke, non-standard customized components, extensively serving industries such as medical, automation, semiconductor, and automotive. We deliver unparalleled precision and superior quality, setting new standards in customized manufacturing solutions.
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. With this diverse array, we adeptly manage the intricate machining requirements across a multitude of industries. We stand distinguished for our unrivaled precision and efficiency in delivering bespoke solutions.
- 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
Exemplary Evaluation of Incoming Materials
Every piece of raw material that enters our prestigious facility is put through a thorough and uncompromising evaluation process to ensure it meets our exceptional quality standards. Our exhaustive assessments include a detailed analysis of chemical composition and a precise inspection of physical attributes. To uphold our commitment to excellence, we mandate that suppliers furnish a Certificate of Origin and a Declaration of Conformity with a valid stamp, ensuring that only the finest materials-marked by integrity and purity-are selected for our precision-focused medical machining endeavors. This rigorous process aligns perfectly with our dedication to outstanding quality, reinforcing our pledge of perfection and precision.
Comprehensive In-Process Quality Control
Within our state-of-the-art machining operations, each component is subjected to meticulous scrutiny to guarantee that dimensions and tolerances surpass our exacting standards. Our diligent and continuous inspection regimen enables early detection of potential defects, effectively preventing non-conforming parts from progressing further. This vigilant strategy is essential in minimizing the risk of substandard goods, assuring premium quality at every stage, and consistently maintaining excellence throughout the process, demonstrating our steadfast dedication to superior quality.
Strategically Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) is a vital strategic initiative, serving as a cornerstone for the early identification and resolution of potential production challenges. This proactive approach ensures that issues are efficiently managed before evolving into substantial production concerns. The precision and comprehensiveness of our FAI process significantly diminish quality risks, ensuring that products consistently adhere to top industry standards. This relentless pursuit of excellence permeates the entire production cycle, consistently exceeding even the most stringent benchmarks and reinforcing our reputation for unparalleled quality.
Comprehensive and Rigorous Final Inspection
Before any products depart from our distinguished facility, they undergo a rigorous and thorough final inspection. This meticulous process evaluates dimensions, appearance, performance, and specific customer requirements. Our exhaustive inspections are a testament to our unwavering commitment to quality, ensuring that every part dispatched meets our exacting standards. We are resolute in our mission to deliver only the highest-quality products to our esteemed customers, upholding our sterling reputation for excellence and reliability.
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 an extraordinary 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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