Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes far beyond mere duty; it's fueled by an ardent passion for the artful craftsmanship and meticulous discipline in the realm of precision manufacturing. Our unparalleled expertise acts as a beacon in the field of high-end component fabrication, paving the way to achieving meticulous precision and unsurpassed quality. We are at the forefront of innovating and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a vast array of industries, effectively addressing a diverse range of applications, including:
- Medical and Biotech: Delivering meticulously crafted, high-precision components and groundbreaking solutions for state-of-the-art medical devices, steadfastly maintaining the peak of quality standards.
- Semiconductors: Enhancing chip production and related equipment by providing essential core components that are pivotal to the industry's thriving success.
- New Energy: Actively contributing to the robust and sustainable advancement of cutting-edge energy equipment, propelling eco-friendly technological innovation forward.
- Automotive: Supplying crucial components that drive innovation within the automotive industry, supporting the evolution of intelligent and electric vehicles.
Main Products
- We excel in crafting non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive sectors, assuring unmatched 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, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. leverages 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. Our commitment to excellence and dedication to innovation ensure that our Customized Medical CNC Machining Parts for Tight Tolerance Applications meet the most stringent standards, delivering reliability and performance that exceed expectations.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: Setting the Benchmark
Each raw material that enters our state-of-the-art warehouse undergoes an exhaustive and stringent examination process, ensuring that only the finest materials are selected for use in our high-precision medical machining services. Our meticulous analysis encompasses an in-depth evaluation of both the chemical composition and the physical properties. We maintain an unwavering commitment to quality by requiring every supplier to provide a Certificate of Origin along with a stamped Declaration of Conformity. This rigorous authentication process is our hallmark, guaranteeing that these materials meet the highest standards of integrity and purity. With this foundation, we perfectly align our services with our steadfast dedication to exceptional quality.
Intensive In-Process Quality Assurance: Excellence at Every Step
Within the intricate and precise operations of our machining processes, every component is subjected to meticulous scrutiny. Our goal is to ensure that dimensions and tolerances not only meet but exceed our stringent specifications. By employing a diligent and continuous inspection protocol, we strategically intercept potential defects at an early stage, thereby preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is crucial for minimizing risks associated with substandard goods, ensuring superior quality at each phase of production, and maintaining our commitment to excellence throughout the process.
Strategic First Article Inspection (FAI): Proactive Quality Forethought
Our First Article Inspection (FAI) process acts as a foundational strategy crucial for identifying and resolving potential production challenges at their inception. By proactively addressing issues before they escalate to mass production, we minimize quality risks effectively. The comprehensive and precise nature of our FAI process ensures that our products consistently rise to the pinnacle of industry standards. This dedication to excellence permeates every aspect of the production cycle, guaranteeing that we meet and exceed the highest quality benchmarks continually.
Meticulous Comprehensive Final Inspection: Perfection as the Norm
Before any product is dispatched from our facility, it undergoes a meticulous and thorough final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements, ensuring nothing less than perfection. Our comprehensive inspection process stands as a testament to our relentless commitment to quality, assuring that every part shipped from our facility meets our exacting standards. We are unwavering in delivering only the highest quality products to our valued customers, upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its illustrious inception in 2009, tracing its prestigious founding roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of expertise in high-precision basic component machining. With an unwavering commitment to innovation over the past two decades, we have plunged into profound technical research, solidifying our status as pioneers in the realm of precision engineering. We have accumulated an abundance of technical mastery, establishing a stellar market reputation that distinguishes us as an industry leader. Our precision medical machining services are unmatched, consistently delivering incredibly tight tolerances and flawless surface finishes, making us the preferred choice in the medical sector.
With four strategically positioned production bases amidst the dynamic centers of Shenzhen and Guiyang, driven by a dedicated workforce exceeding 400 skilled employees, Donghui has woven a robust and vertically integrated industry chain. This seamlessly combines research and development, production, and delivery, ensuring we surpass our customers' diverse needs with unmatched efficiency and superior quality. Our cutting-edge facilities are equipped to tackle the most intricate and demanding machining tasks, preserving our reputation for excellence and ground-breaking 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)