Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication to the craft transcends conventional expectations. It is not just a responsibility but an invigorating passion that drives us to achieve unparalleled excellence in the intricate art and precise science of advanced manufacturing mastery. Our unrivaled expertise shines brilliantly, guiding us through the elite sphere of superior component manufacturing, where precision is not just a goal but a standard we consistently exceed. We are at the forefront of technological advancement, setting new standards in the creation and production of cutting-edge intelligent automation equipment. Our solutions are the epitome of state-of-the-art technology, designed to seamlessly integrate and meet the varied demands of numerous industries. Our expertise spans across a multitude of applications, including:
- Medical and Biotech: Crafting meticulously engineered, precision-driven components and pioneering solutions that are the cornerstone of the next-generation medical devices revolution.
- Semiconductors: Providing indispensable core components that enhance chip production and its related machinery, ensuring optimal performance and reliability.
- New Energy: Contributing significantly to the innovative and sustainable growth of groundbreaking energy equipment, driving the future of energy solutions.
- Automotive: Supplying key components that drive innovation in the automotive sector, supporting the evolution of smart and electric vehicles, and pushing the boundaries of what's possible.
Main Products
- We specialize in expertly crafted, non-standard customized components, serving critical sectors such as medical, automation, semiconductor, and automotive industries with unparalleled distinction and quality.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Empowered by a remarkable collection of over 300 of the industry's pinnacle machinery units, our operations are fortified and unmatched. This extensive catalog of cutting-edge equipment ensures we consistently stay ahead of the curve, fostering innovation and versatility. These elite-branded machinery units anchor our commitment to precision-driven manufacturing excellence, granting us the ability to expertly navigate intricate and demanding machining requirements across a myriad of industries, achieving outstanding precision and operational efficiency. Our vast capabilities guarantee uncompromised quality and offer bespoke customization, tailor-made to meet the unique demands of our esteemed clientele.
- Boasting a proud 20-year legacy of distinction, we draw from a deep well of manufacturing experience, intricately woven with profound technical knowledge and process excellence. This solid foundation assures unparalleled quality and drives cutting-edge innovation, consistently delivering exceptional products that not only meet but redefine 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 Standards
Every piece of raw material entering our highly-secured warehouse undergoes an exhaustive and stringent evaluation, setting a gold standard in quality assurance. This meticulous approach involves a thorough analysis of chemical compositions and a comprehensive examination of physical properties. Our unwavering commitment to excellence mandates each supplier to provide a Certificate of Origin, supplemented by a stamped Declaration of Conformity. This ensures only the most superior materials are selected for our high-precision medical machining services. Such rigorous authentication guarantees material integrity and purity, steadfastly adhering to our consistently high standards.
Rigorous In-Process Quality Control: A Quest for Perfection
Throughout the intricate machining process, each component is meticulously scrutinized to ensure its dimensions and tolerances align with our exacting specifications. This diligent and continual inspection protocol proactively intercepts potential defects, preventing non-conforming parts from advancing further. Through this vigilant approach, we significantly reduce the risk of producing substandard goods, ensuring superior quality is maintained at every production phase.
Proactive and Comprehensive First Article Inspection (FAI): A Preventive Framework for Excellence
Our First Article Inspection (FAI) serves as the cornerstone of our strategy, adeptly identifying and resolving potential production challenges from inception. This proactive approach ensures issues are prevented from escalating into mass production. This comprehensive and precise FAI process is crucial for minimizing quality risks, ensuring that our products consistently achieve the highest standards, reflecting our unwavering dedication 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 process. This rigorous evaluation covers dimensions, visual appearance, and performance, alongside any 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 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. 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.
With 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)