Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our relentless pursuit of excellence underscores our unwavering dedication to masterful craftsmanship and the intricate science at the heart of manufacturing. Our devotion ensures that each piece we produce is a testament to precision engineering at its finest. Our unparalleled expertise serves as a guiding beacon in the prestigious realm of superior component manufacturing. With unmatched skill and finesse, we solidify our leading position in the industry. As pioneers of innovation, we set the benchmark for designing and delivering state-of-the-art intelligent automation equipment. Our advanced solutions seamlessly integrate into a diverse range of industries, addressing extensive needs across numerous applications, including:
- Medical and Biotech: Providing meticulously engineered, ultra-high-precision components and cutting-edge solutions for the next generation of medical devices, ensuring impeccable precision and reliability.
- Semiconductors: Enhancing chip production and associated equipment with essential, irreplaceable components that drive remarkable advancements in semiconductor technology.
- New Energy: Contributing substantially to the groundbreaking and sustainable evolution of next-generation energy equipment, promoting eco-friendly innovation.
- Automotive: Providing vital components that revolutionize the automotive sector, nurturing the advancement of smart and electric vehicles, pushing the frontiers of innovation.
Main Products
- Exquisitely crafted, non-standard customized components for essential industries such as medical, automation, semiconductor, and automotive sectors, delivering unrivaled excellence and precision.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations showcase an extraordinary collection of over 300 of the industry's most advanced machinery units. This positions us as a beacon of innovation and adaptability. This extensive and diverse array of equipment empowers us to deliver cutting-edge solutions, ensuring our leadership at the pinnacle of technological advancement. These Top-Tier Branded machinery units form the backbone of our precision-driven manufacturing excellence. With these superior machines at our disposal, we expertly handle complex and demanding machining requirements across a vast array of industries, consistently achieving remarkable precision and efficiency. Our expansive capabilities guarantee unwavering compliance with the most rigorous quality standards, while offering bespoke customization, meticulously designed to align with the unique preferences of our esteemed clientele.
- With a distinguished 20-year legacy, we draw from an extensive reservoir of manufacturing experience, seamlessly integrated with profound technical expertise and process acumen, assuring unmatched quality and groundbreaking innovation. This enduring proficiency enables us to consistently deliver exceptional products that not only meet but exceed expectations, redefining 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 Rigorous Incoming Material Inspection: Surpassing Industry Standards with Unrivaled Precision
Inside our secure warehouse, every raw material undergoes a comprehensive evaluation, establishing the benchmark for quality assurance. Our thorough approach involves in-depth chemical composition analyses and exhaustive examinations of physical properties. Excellence is achieved as each supplier is required to provide a Certificate of Origin and a stamped Declaration of Conformity, ensuring that only the finest materials are utilized in our high-precision medical machining services. This rigorous authentication process guarantees the integrity and purity of materials, consistently upholding our exceptionally high standards.
Rigorous In-Process Quality Control: Tirelessly Pursuing Perfection with Unyielding Vigilance
During the complex machining journey, each component is meticulously scrutinized to ensure dimensional and tolerance alignment with our exacting specifications. This continuous inspection protocol proactively intercepts potential defects, preventing non-conforming parts from proceeding further. By maintaining unwavering vigilance, we dramatically reduce the risk of substandard goods, ensuring superior quality throughout every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence and Precision
Our First Article Inspection (FAI) forms the foundation of our manufacturing strategy, adeptly identifying and resolving potential production challenges from the outset. This proactive approach effectively prevents issues from escalating into mass production dilemmas. Our comprehensive FAI process is crucial for minimizing quality risks, ensuring our products consistently meet the highest standards. This reflects our steadfast commitment to excellence throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality and Precision
Before any product departs from our facility, it undergoes a meticulous final inspection process. This rigorous evaluation assesses dimensions, visual appeal, performance, and adherence to customer-specific requirements. Our extensive inspection underscores our relentless dedication to quality, ensuring every dispatched part meets our rigorous standards. We deliver only the highest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Founded in the remarkable year of 2009, with our roots tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as an illustrious paragon of precision and innovation in the world of high-precision component machining. Our extraordinary journey, imbued with a boundless passion and steadfast commitment to the art and science of engineering, has gracefully unfolded over two impressive decades. We have expertly carved our niche as undisputed leaders in precision engineering, fervently advancing technical research and establishing industry standards of unparalleled brilliance and excellence. We have honed an extraordinary depth of technical expertise, setting us apart as distinguished market leaders with a reputation for unparalleled excellence. Our supreme proficiency in precision medical machining services consistently meets the most demanding tolerances and delivers flawlessly impeccable surface finishes. This cements our position as the premier choice in the medical sector, where our precision and dependability continue to garner unwavering trust and admiration from our esteemed clientele, further elevating our status as a beacon of reliability.
With four strategically located production bases, situated in the thriving and dynamic centers of Shenzhen and Guiyang, supported by a formidable team of over 400 exceptionally skilled employees, Donghui has meticulously cultivated a robust and seamlessly integrated industry chain. This chain flawlessly connects research and development, premier production, and impeccable delivery, ensuring that we not only meet but consistently surpass the diverse needs of our clients with remarkable efficiency and impeccable quality. Our state-of-the-art facilities are fully equipped to handle the most intricate and challenging machining tasks, reinforcing our esteemed reputation for excellence and pioneering 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)