Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are dedicated to achieving excellence, driven by our profound commitment to mastering the artful craftsmanship and intricate science vital to manufacturing excellence. Our unmatched expertise illuminates the path of precision, guiding us through the esteemed realm of superior component manufacturing with unparalleled proficiency. As pioneers of innovation, we set the benchmark in crafting and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions seamlessly integrate across a broad spectrum of industries, meeting diverse demands in multiple applications, such as:
- Medical and Biotech: Delivering precisely engineered, ultra-high-precision components and forward-thinking solutions crafted for the next wave of medical devices.
- Semiconductors: Elevating chip production and associated equipment with pivotal components that are both critical and indispensable.
- New Energy: Contributing significantly to the innovative, sustainable advancement of next-generation energy equipment.
- Automotive: Supplying essential components that fuel innovation in the automotive sector, nurturing the evolution of smart and electric vehicles.
Main Products
- Crafted with mastery, our non-standard customized components serve key sectors such as medical, automation, semiconductor, and automotive with unmatched excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations proudly feature an unmatched fleet of over 300 of the industry's most advanced machinery units. This elite collection guarantees a vast and varied catalog of equipment categories, empowering us to stay at the pinnacle of innovation and adaptability. We are committed to offering cutting-edge solutions tailored to meet the evolving demands of the industry. These Top-Tier Branded machinery units are the cornerstone of our precision-focused manufacturing success. With our superior machines, we adeptly meet complex and challenging machining requirements across a multitude of industries with exceptional precision and efficiency. Our comprehensive capabilities ensure unwavering adherence to the highest quality standards, offering bespoke customization that is meticulously crafted to meet the distinct demands of our valued clients.
- Boasting a distinguished 20-year legacy, we leverage an abundance of manufacturing experience, seamlessly integrated with profound technical expertise and process strengths. This ensures the production of superior quality products and groundbreaking innovations. Our enduring expertise allows us to consistently exceed expectations and establish new benchmarks across the industry.
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: Our dedication to transcending industry norms is unwavering, as we deploy unmatched precision in our inspections.
Each raw material that enters our secure facility undergoes a thorough and unmatched evaluation, setting new benchmarks in quality assurance. Our meticulous scrutiny includes an in-depth analysis of chemical and physical properties. We demand that each supplier provides a Certificate of Origin and a stamped Declaration of Conformity, ensuring only top-tier materials are used in our advanced medical machining services. This rigorous validation process safeguards material integrity and purity, perfectly aligning with our unwavering commitment to superior standards.
Rigorous In-Process Quality Control: Our unwavering vigilance and attention to detail propel us towards achieving perfection.
Throughout our complex machining process, every component is examined with precision to ensure perfect alignment with our strict specifications. This continuous inspection protocol is crucial for catching potential defects early, preventing any non-conforming parts from advancing. This vigilant approach significantly reduces the risk of producing inferior products, ensuring that top-notch quality is consistently maintained at every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): A foundational strategy for achieving unparalleled excellence and precision.
Our First Article Inspection (FAI) is the cornerstone of our quality strategy, expertly identifying and addressing potential production issues at inception. This forward-thinking methodology ensures issues are managed before escalating into large-scale production problems. Our comprehensive FAI is crucial in reducing quality risks and ensures our products consistently meet the highest standards, demonstrating our unwavering commitment to excellence throughout the entire production cycle.
Thorough and Detailed Comprehensive Final Inspection: The ultimate verification of unmatched quality and precision.
Before any product departs from our facility, it undergoes an exhaustive final inspection covering dimensions, appearance, performance, and specific customer requirements. This extensive evaluation highlights our unwavering commitment to quality, ensuring each part meets our exacting standards, delivering only the finest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Founded in the prestigious year of 2009, with roots stretching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has become synonymous with precision and innovation in high-precision component machining. Our extraordinary journey, fueled by an unwavering passion and commitment to engineering excellence, spans over two remarkable decades. We have expertly carved our identity as innovators in precision engineering, dedicated to relentless technical research and setting industry standards of unmatched brilliance. We have cultivated an unparalleled depth of technical expertise, distinguishing ourselves as industry leaders celebrated for exceptional quality. Our top-tier mastery in precision medical machining services consistently meets the strictest tolerances and achieves immaculate surface finishes. This cements our position as the premier choice in the medical sector, where our precision and dependability continually garner unwavering trust and admiration.
With four strategically located production bases, in the vibrant and prosperous centers of Shenzhen and Guiyang, supported by an impressive team of over 400 exceptionally skilled employees, Donghui has crafted a comprehensive, vertically integrated industry chain. This seamlessly links research and development, elite production, and impeccable delivery, ensuring we meet and exceed our clients' diverse needs with extraordinary efficiency and unparalleled quality. Our cutting-edge facilities are fully equipped to undertake the most intricate and demanding machining tasks, bolstering 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)