Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication extends far beyond mere obligation; it is driven by a deep-seated passion for mastering the refined art and intricate science of manufacturing excellence. Our profound expertise lights the way to precision, serving as a guiding beacon in the exclusive world of elite component fabrication. We lead the charge in innovation, setting the standard in designing and producing groundbreaking intelligent automation equipment. Our cutting-edge solutions cater to a vast array of industries, addressing diverse needs across numerous applications, including:
- Medical and Biotech: Offering precisely engineered, high-precision components and pioneering solutions for the next generation of medical devices.
- Semiconductors: Empowering chip production and its associated equipment with indispensable core components.
- New Energy: Playing a pivotal role in the dynamic and sustainable growth of state-of-the-art energy equipment.
- Automotive: Supplying vital components that drive innovation in the automotive industry, advancing the evolution of smart and electric vehicles.
Main Products
- Expertly crafted non-standard customized components, extensively serving vital sectors such as medical, automation, semiconductor, and automotive industries.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations proudly showcase an astounding fleet of over 300 top-tier machinery units, a testament to our unparalleled industrial strength. This diverse array of elite equipment categories ensures that we are comprehensively equipped to meet and exceed industry standards. These top-tier branded machinery units serve as the backbone of our precision-driven manufacturing, empowering us to expertly meet the complex and varied machining needs of a multitude of industries. With unmatched precision and efficiency, we ensure exceptional quality and customization tailored to the unique demands of our valued clientele, always setting the bar for industry standards.
- With a rich 20-year legacy, we boast an extensive reservoir of production experience, seamlessly integrated with formidable technical prowess and innovative process advantages. This wealth of expertise guarantees superior quality and groundbreaking innovation, allowing us to deliver exceptional products that consistently surpass expectations and redefine industry benchmarks.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unparalleled Quality
High-Precision Inspection Equipment: The Cornerstone of Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Assessment: Surpassing Industry Standards
Each and every piece of raw material arriving at our fortified warehouse undergoes a comprehensive and rigorous evaluation process, establishing a new benchmark in quality assurances. This meticulous process includes a thorough analysis of the chemical composition and an extensive examination of physical properties. Our unwavering pursuit of excellence requires that each supplier furnish a Certificate of Origin alongside a stamped Declaration of Conformity. This ensures that only the finest materials are approved for our high-precision medical machining services. Such stringent authentication preserves material integrity and purity, firmly adhering to our elevated standards.
In-Process Quality Control: The Pursuit of Perfection
During every stage of the intricate machining process, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances align with our stringent specifications. This diligent and continuous inspection protocol proactively identifies potential defects, preventing any non-conforming parts from progressing. Through this vigilant approach, we effectively minimize the risk of producing substandard goods, ensuring superior quality at every production stage.
Proactive and Comprehensive First Article Inspection (FAI): A Preemptive Strategy
Our First Article Inspection (FAI) is the cornerstone of our strategy, deftly identifying and addressing potential production challenges at the outset. This proactive approach ensures issues are mitigated before escalating into mass production. The comprehensive and precise FAI process is crucial for minimizing quality risks, ensuring our products consistently reach the highest standards, and reflecting our unwavering commitment to excellence throughout the production cycle.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Quality Guardian
Before any product leaves our facility, it undergoes a detailed and meticulous final inspection. This process rigorously assesses dimensions, visual appearance, and performance, alongside specific customer requirements. This comprehensive inspection exemplifies our relentless commitment to quality, ensuring every part shipped meets our exacting standards and delivering only the highest quality 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. 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. With an impressive legacy of expertise, we have amassed an unrivaled wealth of technical expertise, positioning ourselves as market leaders with a stellar reputation for excellence. Our unmatched prowess in precision medical machining services consistently achieves the most exacting tolerances and flawless surface finishes. This places us as the preferred choice in the medical sector, where our precision and reliability are trusted and valued.
Fortified by four strategically positioned production bases, in the bustling centers 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 exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are expertly equipped to undertake the most intricate and demanding 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)