Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we represent a beacon of unmatched excellence, transforming craftsmanship into an art form like no other. Our unwavering dedication to achieving perfection propels us to excel in the intricate artistry of precision while pushing the boundaries of manufacturing innovation. Our expertise radiates as a guiding beacon of unrivaled precision in the elite realm of high-end component manufacturing, where precision is not just a goal, but a standard. As pioneers at the cutting edge of technological advancement, we redefine excellence in the design and engineering of groundbreaking intelligent automation equipment. Our state-of-the-art solutions harmoniously integrate into a wide spectrum of industries, precisely catering to myriad needs across various precision applications, such as:
- Medical and Biotech: Creating meticulously engineered, highly accurate components and innovative solutions tailored to influence the future landscape of medical technology.
- Semiconductors: Transforming chip production and essential related equipment with indispensable core components.
- New Energy: Contributing significantly to the sustainable advancement of innovative energy equipment, spearheading the green revolution.
- Automotive: Delivering critical components that are at the heart of innovation in the automotive sector, supporting the evolution of intelligent and electric vehicles.
Main Products
- Meticulously engineered non-standard customized components, serving prominent sectors such as medical, automation, semiconductor, and automotive industries with unparalleled excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are empowered by a remarkable fleet comprising over 300 of the industry's most cutting-edge machinery units. This elite collection allows us to maintain a broad and dynamic array of equipment categories, keeping us at the pinnacle of innovation and adaptability across diverse industrial landscapes. These premium branded machinery units serve as the foundation of our precision-driven manufacturing processes. Empowering us to master the intricate and demanding machining requirements of various industries, our extensive capabilities ensure adherence to the highest quality standards. We provide tailored customization, meticulously crafted to meet the unique needs of our esteemed clients, consistently surpassing their expectations with every endeavor.
- With a rich 20-year legacy, we have a substantial reservoir of manufacturing experience intricately combined with deep technical expertise and process strengths. This ensures the delivery of superior quality and groundbreaking innovation. Our enduring expertise enables us to consistently deliver extraordinary products that not only meet but exceed expectations, setting new benchmarks for industry standards.
State-of-the-Art Production Equipment: Leading-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Guaranteeing Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: Surpassing Industry Benchmarks with Unrivaled Precision
In the heart of our state-of-the-art warehouse, each raw material is subjected to a comprehensive and meticulous evaluation process, setting unparalleled standards in quality assurance. Our meticulous approach involves an in-depth analysis of chemical compositions and a thorough examination of physical attributes. We enforce the highest standards by demanding a Certificate of Origin and a stamped Declaration of Conformity from suppliers, ensuring that only the finest materials are chosen for our precision-driven medical machining services. This rigorous validation process secures the purity and integrity of materials, consistently meeting and surpassing our elevated benchmarks of precision and quality.
Rigorous In-Process Quality Control: Our Pursuit of Perfection
Throughout the intricate machining process, every component undergoes scrupulous inspection to ensure its dimensions and tolerances conform to our stringent specifications. Our rigorous inspection protocol remains ever vigilant, intercepting potential defects to prevent non-conforming parts from advancing. This diligent approach significantly reduces the risk of substandard products, ensuring that exceptional quality is meticulously upheld at each critical production stage.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Unrivaled Excellence
Our First Article Inspection (FAI) procedure is the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges from the outset. This proactive approach ensures issues are addressed before scaling to mass production, securing a seamless flow of flawless production. Our thorough FAI process is vital for minimizing quality risks and ensuring our offerings consistently meet the highest standards, underscoring our unwavering commitment to excellence throughout the entire production lifecycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Arbiter of Quality
Before any product leaves our facility, it undergoes a comprehensive and painstaking final inspection. This meticulous evaluation covers dimensions, visual appeal, performance, and bespoke customer requirements. Our exhaustive inspection process is a testament to our steadfast dedication to quality, ensuring each dispatched piece adheres to our stringent standards, thus providing only top-tier products to our esteemed clientele.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, building upon its founding vision from 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has passionately dedicated itself to mastering the art and science of high-precision component machining. Over the past two decades, through an unwavering commitment to innovation and excellence, we have emerged as trailblazers in precision engineering. Through relentless technical research and innovative solutions, we have established ourselves as industry pioneers, setting benchmarks of unparalleled excellence. Our company boasts a wealth of exceptional technical expertise, solidifying our position as market leaders with a reputation for unparalleled excellence. Our superior skill in precision medical machining services consistently achieves the most stringent tolerances and flawless surface finishes. This distinction solidifies our position as the top choice within the medical sector, where our precision and reliability are esteemed and indispensable by healthcare professionals and industry experts alike.
With four strategically positioned production bases, situated in the dynamic hubs of Shenzhen and Guiyang, and powered by an ambitious workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust, vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our clientele with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and challenging machining tasks, cementing our prestigious reputation for excellence and innovation.
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)