Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes beyond mere duty; it is driven by an unwavering passion for the exquisite artistry and meticulous science of precision manufacturing. Our unparalleled expertise stands as a beacon in the realm of high-end component fabrication, guiding the way towards impeccable precision. We are at the forefront of pioneering the development and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions address a wide array of industries, effectively meeting the diverse needs of applications, including:
- Medical and Biotech: Delivering meticulously engineered high-precision components and innovative solutions for cutting-edge medical devices, ensuring the highest quality standards are maintained.
- Semiconductors: Empowering chip production and its related equipment by supplying essential core components that are vital to the industry's thriving success.
- New Energy: Actively participating in the robust and sustainable progression of innovative energy equipment, promoting eco-friendly technological advancements.
- Automotive: Supplying crucial components that drive innovation within the automotive industry, supporting the evolution of smart and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive industries, guaranteeing unrivaled precision and superior quality.
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.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Outstanding Incoming Material Examination
Each raw material that enters our warehouse is subjected to a rigorous and comprehensive examination process. Our meticulous analysis encompasses not only evaluating the chemical composition but also includes a thorough inspection of the physical properties. We maintain an unwavering dedication to quality by mandating that every supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity. This rigorous selection process ensures that only the finest materials are chosen for use in our high-precision medical machining services. Our stringent authentication standards guarantee that these materials meet the highest criteria of integrity and purity, perfectly aligning with our steadfast commitment to excellence.
Comprehensive In-Process Quality Assurance
Within our intricate and precise machining operations, every component undergoes meticulous scrutiny to ensure its dimensions and tolerances do not merely meet, but surpass our stringent specifications. Our diligent and continuous inspection protocol is astutely designed to intercept potential defects at an early stage, thereby 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 each phase of production, and maintaining unrivaled excellence throughout the entire process.
Strategic and Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a foundational strategy that plays a pivotal role in identifying and resolving potential production challenges at an early stage. This proactive approach is instrumental in preventing issues from escalating into large-scale production concerns. The comprehensive and precise nature of our FAI process is essential in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards. This dedication to excellence permeates every aspect of the production cycle, guaranteeing that we consistently meet and exceed the highest quality benchmarks.
Thorough and Meticulous Final Inspection
Before any product departs from our facility, it undergoes a meticulous and exhaustive final inspection. This process rigorously 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 remain steadfast in delivering only the highest quality products to our valued customers, upholding our reputation for unparalleled excellence and dependability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen to prominence as a beacon of expertise in the realm of high-precision basic component machining. With a steadfast commitment to innovation over the past two decades, our journey has been marked by a deep dive into technical research, establishing ourselves as pioneers and leaders in the field of precision engineering. We have cultivated an extensive reservoir of technical expertise, allowing us to earn a stellar market reputation that distinguishes us as a frontrunner in the industry. Our precision medical machining services consistently achieve incredibly tight tolerances and impeccable surface finishes, positioning us as the preferred choice within the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless integration masterfully combines research and development, production, and delivery, ensuring we meet and exceed our customers' diverse needs with exceptional efficiency and unparalleled quality. Our state-of-the-art facilities are poised to tackle the most intricate and demanding machining tasks, upholding our reputation for excellence 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)