Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not just committed to excellence-it's our passion. Our relentless pursuit of brilliance radiates through every facet of the art and science of manufacturing mastery. Our distinguished expertise paves the way to unparalleled precision, becoming a guiding light in the elite realm of premier component manufacturing. Pioneering innovation, we set the benchmark for designing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate into a multitude of industries, catering to diverse requirements with precision and excellence across numerous applications, including:
- Medical and Biotech: Delivering precisely engineered, high-precision components and visionary solutions designed for the next generation of groundbreaking medical devices.
- Semiconductors: Elevating chip production and associated essential equipment with indispensable core components at the forefront of technological advancement.
- New Energy: Playing an essential role in the innovative and sustainable evolution of state-of-the-art energy equipment.
- Automotive: Providing key components that ignite innovation within the automotive industry, advancing the development of smart and electric vehicles.
Main Products
- Masterfully crafted non-standard customized components, serving crucial sectors such as medical, automation, semiconductor, and automotive industries with exceptional distinction and quality.
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. Our top-tier branded machinery units stand as the cornerstone of our precision-focused manufacturing, enabling us to masterfully tackle the multifaceted and demanding machining requirements of an array of industries with exceptional precision and efficiency. Our extensive capabilities guarantee adherence to the pinnacle of quality standards and offer bespoke customization that is meticulously crafted to meet the unique needs of our distinguished clientele.
- 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 Rigorous Incoming Material Inspection: Surpassing Industry Benchmarks
Every raw material introduced to our cutting-edge warehouse is subjected to an exhaustive and stringent evaluation, setting a gold standard in quality assurance. Our meticulous process involves thorough analyses of chemical compositions and exhaustive examinations of physical attributes. Our unwavering dedication to excellence demands each supplier provides a Certificate of Origin, along with a stamped Declaration of Conformity. This ensures only the finest materials are chosen for our high-precision semiconductor manufacturing. Such rigorous authentication guarantees material integrity and purity, consistently meeting our lofty standards of quality and precision.
Rigorous In-Process Quality Control: Pursuing Flawlessness
Throughout the intricate machining process, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances meet our stringent specifications. This diligent and continual inspection intercepts potential defects, preventing non-conforming parts from advancing. Through this vigilant approach, we significantly minimize the risk of producing substandard goods, guaranteeing superior quality is upheld at every production stage.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) is the cornerstone of our quality strategy, adeptly identifying and resolving potential production challenges from the outset. This proactive approach prevents issues from escalating into mass production. Our comprehensive and precise FAI process is crucial for minimizing quality risks, ensuring our products consistently achieve the highest standards, reflecting our unwavering commitment to excellence throughout the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product leaves our facility, it undergoes a detailed and meticulous final inspection. This rigorous evaluation covers dimensions, visual appearance, and performance, alongside customer-specific requirements. This extensive inspection is a testament to our relentless commitment to quality, ensuring every part dispatched meets our exacting standards, delivering only the highest quality products to our esteemed 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. With an unwavering commitment to innovation over the past two decades, we have emerged as trailblazers in the realm of precision engineering. Through relentless technical research, we have established ourselves as industry pioneers, setting benchmarks of excellence. We boast an extraordinary wealth of technical expertise, establishing ourselves as leaders in the industry with an impeccable reputation for excellence. Our unparalleled precision medical machining services are renowned for achieving the most stringent tolerances and flawless surface finishes, making us the go-to choice in the medical sector where precision and reliability are paramount.
With four strategically positioned production bases, located in the vibrant hubs of Shenzhen and Guiyang, and supported by a dynamic 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 exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are expertly equipped to tackle the most intricate and demanding machining tasks, solidifying 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)