Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., immerse yourself in a world where precision meets passion. Our commitment to the art of exceptional manufacturing results in components that are nothing short of immaculate. Driven by quality craftsmanship and technological prowess, we distinguish ourselves by delivering unparalleled excellence in every precisely crafted piece. Commanding the realm of precision engineering, our expertise is unmatched. With skillful mastery in the sophisticated craft of component manufacturing, we demonstrate remarkable dexterity and finesse, ensuring our mark of excellence. As harbingers of innovation, we set the benchmark for creating and delivering pioneering intelligent automation equipment. Our cutting-edge solutions seamlessly cross multiple industries, adeptly fulfilling diverse needs and applications, including:
- Medical and Biotech: Offering finely engineered, ultra-precise components paired with transformative solutions, designed for the forefront of cutting-edge medical technologies.
- Semiconductors: Enhancing chip production and relevant equipment with essential, high-performance components that drive extraordinary progress and efficiency.
- New Energy: Influential in advancing the innovative, sustainable development of cutting-edge energy equipment, revolutionizing the future of energy solutions.
- Automotive: Providing essential components that propel innovation in the automotive sector, advancing the evolution of smart and electric vehicles.
Main Products
- Our masterfully crafted non-standard customized components represent the zenith of excellence. Serving essential sectors such as medical, automation, semiconductor, and automotive industries, we deliver unmatched precision and superior quality destined to stand the test of time.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by an impressive fleet of over 300 of the industry's most sophisticated machinery units. This extensive and advanced collection ensures we remain at the cutting-edge of innovation and adaptability. By consistently delivering groundbreaking solutions, we set the industry's standard for excellence, driving towards unparalleled precision and superior quality. These Top-Tier Branded Our pioneering machinery units are the foundation of our precision-focused manufacturing process, forming the essential infrastructure that supports our rigorous production standards. Utilizing these state-of-the-art tools, we continuously refine and enhance our manufacturing strategies to achieve outstanding results consistently. By employing our high-caliber machines, we expertly execute complex and challenging machining requirements across diverse industries, achieving an unmatched level of precision and efficiency. Our vast capabilities ensure unwavering adherence to the highest quality standards while delivering bespoke customization that not only meets but exceeds the unique needs of our esteemed clients, far surpassing their highest expectations.
- With a prestigious 20-year legacy, we draw from a deep well of manufacturing experience seamlessly combined with comprehensive technical expertise and process mastery. This harmonious blend guarantees not only exceptional quality but also pioneering innovation. We empower ourselves to consistently deliver extraordinary products that exceed expectations and set new standards of excellence within the industry.
State-of-the-Art Production Equipment: Harnessing Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Meticulous and Rigorous Incoming Material Inspection: In the realm of innovation and precision, we are not merely content with meeting industry expectations; we surpass them with unmatched methodologies. Our leading-edge approach ensures that we are at the forefront of setting superior quality benchmarks, establishing revolutionary standards at every phase of production.
Every raw material that enters our state-of-the-art warehouse undergoes a comprehensive evaluation that sets a new benchmark in quality assurance. Our detailed approach includes thorough chemical composition analysis and accurate physical property assessment. We mandate that our suppliers provide a Certificate of Origin alongside a verified Declaration of Conformity, ensuring that only the finest materials are utilized in our advanced medical machining services. This meticulous validation process guarantees the integrity and purity of materials, perfectly echoing our steadfast commitment to top-tier quality.
Unyielding In-Process Quality Control: Our relentless vigilance and meticulous attention to detail drive us in our relentless quest for perfection with unwavering dedication.
Throughout the intricate machining process, each component undergoes a meticulous examination to ensure dimensions and tolerances are precisely in line with our stringent specifications. This ongoing inspection protocol is crucial in proactively identifying and intercepting any potential defects, effectively preventing the progression of non-conforming parts. Our diligent strategy significantly reduces the risk of producing substandard goods, consistently guaranteeing that exceptional quality is maintained across every production stage.
Proactive and Comprehensive First Article Inspection (FAI): Our preventive framework is the cornerstone of immaculate excellence and unmatched precision.
Our First Article Inspection (FAI) process is foundational to our quality strategy, expertly identifying and addressing potential production challenges from the beginning. This proactive approach ensures that issues are managed before they can escalate into mass production obstacles. This comprehensive FAI process is integral in minimizing quality risks, guaranteeing that our products consistently meet the highest standards, embodying our unwavering commitment to excellence at all stages of production.
Thorough and Detailed Comprehensive Final Inspection: The ultimate safeguard of exceptional quality and precision.
Before any product departs from our facility, it is subjected to a thorough and comprehensive final inspection. This rigorous evaluation covers dimensions, visual appeal, performance, and customer-specific requirements, showcasing our steadfast dedication to quality. This meticulous inspection ensures that every part delivered meets our exacting standards, providing our esteemed customers with products of the highest quality.
Packaging & Shipping
Company Profile
Founded in the esteemed year of 2009, with origins tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. emerges as a shining beacon in the intricate domain of high-precision component machining. Our prestigious journey, driven by a profound dedication to the meticulous art and exacting science of engineering, spans over two decades of unyielding innovation and masterful precision. We have skillfully carved our position as pioneers in precision engineering, continuously pushing the boundaries of technical research and setting groundbreaking industry benchmarks. We have fostered an extraordinary level of technical prowess, establishing ourselves as industry leaders with a stellar reputation for unmatched excellence. Our unparalleled expertise in precision medical machining services consistently adheres to the most stringent tolerances, delivering impeccable surface finishes. This solidifies our standing as the foremost choice in the medical sector, where our precision and unwavering reliability continue to garner steadfast trust and admiration.
With four strategically located production bases, in the vibrant and bustling hubs of Shenzhen and Guiyang, supported by an impressive team of over 400 highly skilled professionals, Donghui has masterfully developed a comprehensive, vertically integrated industry chain that seamlessly connects research and development, superior production, and flawless delivery. This ensures we consistently meet and exceed the diverse needs of our clients with remarkable efficiency and unparalleled quality. Our state-of-the-art facilities are fully equipped to handle the most intricate and demanding 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)