Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are synonymous with an unwavering dedication to excellence, transcending beyond obligation into the realm of artistry in precision. Our unyielding passion propels us to achieve brilliance in both the intricate craftsmanship and the advanced science of manufacturing innovation. Our unrivaled expertise illuminates the way to unparalleled precision, acting as a guiding light in the esteemed domain of high-end component manufacturing. Pioneering at the pinnacle of innovation, we establish the benchmark for excellence in designing and crafting groundbreaking intelligent automation equipment. Our state-of-the-art solutions effortlessly integrate across a broad spectrum of industries, expertly meeting a wide array of needs with precise applications that include:
- Medical and Biotech: Providing meticulously engineered, ultra-precise components along with groundbreaking solutions tailored for the future of medical technology.
- Semiconductors: Enhancing the production of chips and associated vital equipment with indispensable core components.
- New Energy: Contributing significantly to the innovative and sustainable evolution of pioneering energy equipment.
- Automotive: Delivering essential components that drive innovation in the automotive sector, supporting the advancement of intelligent and electric vehicles.
Main Products
- Skillfully designed non-standard customized components, catering to critical sectors such as the medical, automation, semiconductor, and automotive industries with outstanding excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are fortified by an impressive fleet of over 300 of the industry's most cutting-edge machinery units. This elite ensemble ensures we maintain a vast and dynamic catalog of equipment categories, allowing us to lead the charge in innovation and adaptability across various industrial landscapes. These top-tier branded machinery units form the cornerstone of our precision-focused manufacturing. Empowering us to tackle the multifaceted and demanding machining requirements of diverse industries with exceptional precision and efficiency, our expansive capabilities ensure adherence to the highest quality standards. We offer bespoke customization, meticulously crafted to meet the unique needs of our distinguished clientele, elevating their expectations with every project.
- With an illustrious 20-year legacy, we harbor a rich reservoir of manufacturing experience, seamlessly interwoven with profound technical expertise and process strengths. This ensures the delivery of superior quality and groundbreaking innovation. Our enduring expertise empowers us to consistently deliver extraordinary products that not only meet but surpass expectations, setting new benchmarks in industry standards.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Exacting Incoming Material Inspection: Surpassing Industry Benchmarks with Precision
In our cutting-edge warehouse, each raw material is subjected to an unparalleled, meticulous evaluation that epitomizes the pinnacle of quality assurance. Our comprehensive process includes a detailed analysis of the chemical composition and a thorough examination of physical attributes. We insist on excellence, requiring every supplier to provide a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the most superior materials are chosen for our high-precision medical machining services. This rigorous verification process guarantees the material's integrity and purity, consistently matching our superior standards of quality and precision.
Meticulous In-Process Quality Control: Striving for Perfection
Throughout the sophisticated machining process, every component is meticulously examined to ensure its dimensions and tolerances align with our stringent specifications. Our vigilant inspection protocol continuously identifies potential defects, preventing non-conforming parts from progressing further. This diligent approach vastly reduces the risk of producing inferior goods, upholding a superior level of quality at every crucial stage of production.
Proactive and Holistic First Article Inspection (FAI): A Preventative Framework for Unwavering Excellence
Our First Article Inspection (FAI) process is the foundation of our strategy, expertly identifying and resolving potential production challenges from the very beginning. This proactive method ensures issues are halted before they escalate into mass production, guaranteeing a flawless production flow. Our comprehensive FAI process is vital for minimizing quality risks, ensuring our products consistently meet the highest standards, and reflecting our unwavering commitment to excellence throughout the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Custodian of Quality
Before any product leaves our facility, it undergoes an exhaustive and meticulous final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our extensive inspection underscores our steadfast commitment to quality, ensuring every part delivered meets our exacting standards and providing only the finest products to our esteemed and valued customers.
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, we have emerged as trailblazers in precision engineering. Through relentless technical research, we have established ourselves as industry pioneers, setting benchmarks of 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 makes us the top choice within the medical sector, where our precision and reliability are esteemed and indispensable.
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)