Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by an unwavering commitment to excellence, passionately pursuing perfection in the sophisticated science and artistry of manufacturing. Our dedication is embodied in our mission to exceed the most stringent standards of quality and innovation, positioning us as leaders in the industry. Our unparalleled expertise shines brightly in the sphere of precision, leading us with unmatched skill and dedication through the elite domain of superior component manufacturing. As pioneers of innovation, we set the gold standard in the design and production of pioneering intelligent automation equipment. Our state-of-the-art solutions seamlessly blend across a wide spectrum of industries, catering to a diverse range of applications, including:
- Medical and Biotech: Offering meticulously crafted, ultra-precision components and visionary solutions that are heralding the future of cutting-edge medical devices.
- Semiconductors: Enhancing chip production and associated infrastructure with crucial components that are both indispensable and irreplaceable.
- New Energy: Pioneering the innovative and sustainable evolution of groundbreaking energy technology and equipment.
- Automotive: Delivering essential components that propel innovation within the automotive sector, promoting the evolution of smart and electric vehicles.
Main Products
- Masterfully engineered, bespoke non-standard components that serve critical sectors such as medical, automation, semiconductor, and automotive industries with unparalleled precision and expertise.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations boast an unparalleled fleet of over 300 of the industry's most sophisticated machinery units, ensuring we possess an extensive and diverse catalog of equipment categories. This expansive collection empowers us to remain at the forefront of innovation and adaptability, offering cutting-edge solutions. These top-tier branded machinery units form the backbone of our precision-centric manufacturing, allowing us to expertly meet the intricate and demanding machining requirements across a broad range of industries with exceptional precision and efficiency. Our comprehensive capabilities ensure adherence to the highest quality standards and offer bespoke customization, meticulously tailored to the unique needs of our esteemed clients.
- With a prestigious 20-year legacy, we harness a wealth of manufacturing experience, seamlessly integrated with substantial technical expertise and process strengths, guaranteeing superior quality and ground-breaking innovation. This enduring expertise enables us to consistently deliver extraordinary products that surpass expectations and set new benchmarks in 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: Surpassing Industry Standards
Every piece of raw material entering our secure warehouse undergoes an unyielding evaluation process, setting an unparalleled benchmark in quality assurance. Our painstakingly detailed approach involves a comprehensive analysis of chemical compositions and a thorough examination of all physical properties. Our unwavering commitment to excellence mandates that each supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity, ensuring only the most superior materials are utilized in our high-precision medical machining services. Such stringent authentication guarantees the integrity and purity of our materials, consistently upholding our high standards of quality with pride.
Rigorous In-Process Quality Control: Continuously Striving for Perfection
Throughout the intricate machining process, each component is meticulously scrutinized to ensure its dimensions and tolerances align flawlessly with our exacting specifications. This ongoing inspection protocol proactively intercepts potential defects, effectively preventing any non-conforming parts from advancing further in the process. Through this vigilant approach, we dramatically reduce the risk of producing substandard goods, ensuring that superior quality is preserved at every stage of production, safeguarding the excellence of our final products.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) serves as the cornerstone of our strategic approach, adeptly identifying and resolving potential production challenges right from the start. This proactive method ensures that any issues are swiftly addressed before they can escalate into mass production. This thorough FAI process is instrumental in minimizing quality risks, consistently enabling our products to achieve the highest standards, reflecting our unwavering dedication to excellence throughout the entire production cycle and ensuring our leadership in quality craftsmanship.
Thorough and Detailed Comprehensive Final Inspection: The Ultimate Guardian of Quality
Before any product leaves our facility, it is subjected to an exhaustive final inspection process. This rigorous evaluation encompasses dimensions, visual appearance, and performance, as well as any customer-specific requirements. This extensive inspection is a testament to our relentless commitment to quality, ensuring every part dispatched meets our stringent standards, delivering only the highest caliber products to our esteemed and valued customers, culminating in a flawless product experience.
Packaging & Shipping
Company Profile
Established in the vibrant year of 2009 with foundations dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. shines as an emblem of precision and innovation in the realm of high-precision component machining. Our journey is marked by an unwavering passion and steadfast commitment to the craft and science of engineering, spanning over two illustrious decades. We have passionately defined our niche as pioneering leaders in precision engineering, persistently pursuing cutting-edge technical research and setting the industry's benchmark for extraordinary excellence. We have amassed an unrivaled depth of technical expertise, distinguishing ourselves as the unequivocal market leaders with a celebrated reputation for unwavering excellence. Our supreme mastery in precision medical machining services consistently surpasses the most exacting tolerances, delivering flawless surface finishes. This cements our position as the foremost choice in the medical sector, where our precision and reliability earn us extensive trust and admiration.
With four strategically positioned production bases, in the dynamic and innovative epicenters of Shenzhen and Guiyang, and driven by a passionate workforce of over 400 exceptionally skilled and dedicated employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless network intricately connects research and development, cutting-edge production, and efficient delivery, ensuring we meet and exceed our clients' diverse needs with remarkable efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to tackle the most complex and challenging machining tasks, reinforcing our prestigious reputation for pioneering excellence and forward-thinking 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)