Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we infuse every step of our production process with an unwavering zeal for the exquisite craft and meticulous science of precision manufacturing. Our unparalleled expertise stands as a beacon in the elite world of component fabrication, guiding the pursuit of flawless precision with unwavering dedication. We are trailblazers in the development and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions span a broad spectrum of industries, adeptly addressing a variety of applications, including:
- Medical and Biotech: Crafting meticulously engineered high-precision components and cutting-edge solutions for contemporary medical devices, ensuring adherence to the highest quality standards.
- Semiconductors: Fortifying chip manufacturing and its related machinery by providing essential core components that are pivotal to the industry's triumph.
- New Energy: Actively participating in the sustainable and dynamic progression of innovative energy equipment, advancing eco-friendly technological evolution.
- Automotive: Supplying crucial components that drive innovation in the automotive industry, supporting the transition to smart and electric vehicles.
Main Products
- We specialize in non-standard customized components, serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched precision and superior excellence.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency. Our extensive fleet ensures that no matter the complexity or scale, we deliver results that exceed expectations every time.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. Our commitment to guaranteeing exceptional quality and forward-thinking innovation sets us apart as true pioneers in the realm of precision engineering, consistently redefining industry standards.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Each raw material entering our warehouse is subjected to a rigorous and exhaustive examination process, ensuring only the finest materials are selected for our high-precision medical machining services. Our meticulous analyses encompass a detailed evaluation of the chemical composition and a thorough inspection of the physical properties. We steadfastly uphold our commitment to excellence by mandating every supplier to provide a Certificate of Origin and a stamped Declaration of Conformity. This rigorous authentication process guarantees that the materials meet the highest standards of integrity and purity, perfectly aligning with our unwavering dedication to quality.
Intensive In-Process Quality Assurance
Within our sophisticated and precise machining operations, each component is scrutinized meticulously to ensure its dimensions and tolerances not only meet but exceed our stringent specifications. Our continuous and diligent inspection protocol is strategically crafted to intercept potential defects early, preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is crucial in minimizing the risk of substandard goods, ensuring superior quality at every phase of production and maintaining excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy, essential for identifying and addressing potential production challenges at an early stage, preventing issues from escalating into mass production. The comprehensive and precise nature of our FAI process is vital in minimizing quality risks and ensuring our products consistently reach the pinnacle of standards. This commitment to excellence permeates every facet of the production cycle, guaranteeing that we meet and surpass the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product departs from our facility, it undergoes a meticulous and exhaustive final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process stands as a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are resolute in delivering only the highest quality products to our esteemed customers, upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009 and rooted in solid foundations laid down in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has rapidly ascended as a beacon of high-precision component machining mastery. With an unwavering commitment to forging new paths in innovation for over twenty years, we have embarked on an intensive journey of technical research, positioning ourselves as trailblazers in the realm of precision engineering. We have cultivated an unparalleled reservoir of technical prowess, earning a prestigious reputation that distinctly marks us as frontrunners in the industry. Our proficiency in precision medical machining services is exceptional, consistently delivering precision with incredibly tight tolerances and flawless surface finishes. This expertise solidifies our standing as the premier choice within the medical sector.
With four strategically positioned production bases in the bustling innovation hubs of Shenzhen and Guiyang, driven by a committed workforce exceeding 400 highly skilled professionals, Donghui has meticulously crafted a formidable and vertically integrated industry chain. This chain seamlessly blends research and development, production, and delivery, ensuring that we not only meet but surpass the diverse demands of our clientele with exceptional efficiency and unparalleled quality. Our cutting-edge facilities are primed to tackle the most intricate and challenging machining tasks, sustaining our 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)