Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not merely a duty; it is an impassioned pursuit of the refined artistry and exact science inherent in precision manufacturing. Our unparalleled expertise stands as a beacon in the world of high-end component fabrication, shedding light on the journey towards exceptional precision. As innovators, we are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a broad spectrum of industries, effectively meeting diverse application needs, including:
- Medical and Biotech: Crafting precision-engineered components and cutting-edge solutions for advanced medical devices, consistently maintaining the highest quality standards.
- Semiconductors: Bolstering chip production and its machinery by providing essential core components vital to industry triumph.
- New Energy: Championing the robust and sustainable progress of innovative energy equipment, advancing eco-conscious technological developments.
- Automotive: Supplying key components that drive innovation in the automotive industry, contributing to the development of smart and electric vehicles.
Our Main Products
- We are experts in non-standard customized components, fulfilling the demands of the medical, automation, semiconductor, and automotive sectors, delivering unmatched precision and extraordinary quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned, cutting-edge machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This impressive capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, ensuring every project is executed to perfection.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This unique blend guarantees exceptional quality and forward-thinking innovation, setting us apart as true pioneers in the realm of precision engineering. Our unwavering dedication to excellence ensures that every component we produce not only meets but exceeds industry standards, offering our clients unmatched reliability and performance.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Examination
Every piece of raw material that enters our facility is subject to an exhaustive and stringent evaluation process. Our meticulous analyses encompass detailed examinations of both the chemical and physical properties. We maintain an unwavering dedication to quality by insisting that each supplier provides a Certificate of Origin as well as a stamped Declaration of Conformity. This rigorous selection process ensures that only the highest quality materials are chosen for use in our precision medical machining services. Our stringent authentication practices certify that these materials meet the pinnacle of standards, ensuring integrity and purity, which perfectly aligns with our steadfast commitment to premium quality.
In-Process Quality Assurance: Precision at Every Step
Throughout our intricate machining operations, every component undergoes meticulous scrutiny. This ensures dimensions and tolerances not only meet but consistently exceed our exacting specifications. Our diligent, continuous inspection protocol is strategically designed to detect and address potential defects early, preventing non-conforming parts from advancing to subsequent production phases. This proactive approach is crucial in minimizing the risk of substandard goods, ensuring superior quality at each stage of production, and maintaining unparalleled excellence throughout the entire process.
First Article Inspection (FAI): A Strategic Quality Gateway
Our First Article Inspection (FAI) process is a cornerstone strategy, crucial in identifying and resolving production challenges at the outset. This proactive approach effectively prevents issues from escalating into mass production. The comprehensive and precise nature of our FAI protocol is vital in minimizing quality risks, guaranteeing that our products consistently achieve the highest standards. Our commitment to excellence permeates every aspect of the production cycle, ensuring that we meet and exceed the most rigorous quality benchmarks.
Final Inspection: Ensuring Meticulous Precision
Before any product departs from our facility, it undergoes a meticulous and comprehensive final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our thorough inspection procedure is a testament to our relentless pursuit of quality, ensuring that every part leaving our premises meets our stringent standards. We are unwavering in delivering only the utmost quality products to our esteemed customers, reinforcing our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has firmly established itself as a beacon of excellence and innovation in the realm of high-precision component machining. With an unwavering commitment to cutting-edge technology and groundbreaking innovation over the past two decades, we have immersed ourselves in extensive and profound technical research, positioning ourselves as pioneers and leaders in the field of precision engineering. We have accumulated an extensive reservoir of technical mastery, earning a sterling market reputation that distinguishes us as unparalleled leaders in the industry. Our unparalleled capabilities in precision medical machining services are unmatched, consistently achieving the most stringent tolerances and flawless surface finishes, making us the unequivocal choice for excellence in the medical sector.
With four strategically located production bases in the dynamic and bustling hubs of Shenzhen and Guiyang, supported by a dedicated and skilled workforce of over 400 proficient employees, Donghui has meticulously crafted a powerful and vertically integrated industry chain. This chain seamlessly weaves together cutting-edge research and development, efficient production, and timely delivery, ensuring we surpass the diverse expectations of our clients with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are equipped to tackle the most intricate and demanding machining tasks, consistently upholding our reputation for excellence, precision, and groundbreaking 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)