Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment transcends mere duty; it is fueled by an ardent passion for the delicate art and exacting science that is precision manufacturing. Our unparalleled expertise shines as a beacon in the world of high-end component fabrication, illuminating the path to uncompromised precision and excellence. We are pioneers in the development and production of revolutionary intelligent automation equipment. These trailblazing solutions span a vast range of industries, adeptly addressing varied applications, including:
- Medical and Biotech: We deliver meticulously crafted high-precision components and forward-thinking solutions for cutting-edge medical devices, always maintaining the highest quality standards.
- Semiconductors: We empower chip production and its vital equipment by providing essential core components that are critical to the industry's success and innovation.
- New Energy: We are engaged in the robust and sustainable advancement of innovative energy equipment, driving forward eco-friendly technological progress.
- Automotive: We supply indispensable components that propel innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We specialize in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, delivering 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, 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
Exemplary Incoming Material Examination
Every piece of raw material that steps into our warehouse embarks on a journey of exhaustive and stringent examination. Our meticulous process dives deep into evaluating the chemical composition and conducts a thorough inspection of the physical properties. We maintain an unwavering pledge to quality by mandating every supplier to furnish a Certificate of Origin along with a stamped Declaration of Conformity. This rigorous protocol ensures that only the crème de la crème of materials are chosen to craft our high-precision medical machining components. Our diligent authentication process acts as a guardian, ensuring these materials ascend to the zenith of integrity and purity, perfectly in harmony with our steadfast devotion to quality.
Intensive In-Process Quality Assurance
In the realm of our intricate and precise machining operations, each component is subjected to meticulous scrutiny to ensure its dimensions and tolerances don't just meet but surpass our stringent specifications. Our diligent and continuous inspection protocol is meticulously crafted to detect potential defects at their inception, preventing non-conforming parts from advancing to subsequent stages. This vigilant strategy is a cornerstone in minimizing the risk of substandard goods, ensuring superior quality at every production phase, and maintaining an unwavering standard of excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process stands as a strategic pillar, crucial for identifying and resolving potential production challenges at the inception stage. This proactive approach acts as a safeguard, preventing issues from escalating into mass production. The comprehensive and precise essence of our FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards. This unwavering dedication to excellence infiltrates every facet of the production cycle, guaranteeing we exceed the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Before any product departs from our facility, it undergoes a meticulous and thorough final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements with fine precision. Our comprehensive inspection protocol is a testament to our relentless pursuit of quality, ensuring every part dispatched from our premises meets our exacting standards. We remain unwavering in delivering the highest quality products to our esteemed customers, upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, building upon the firm foundation established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has rapidly ascended as a beacon of expertise in high-precision basic component machining. With an unwavering commitment to driving innovation over the past two decades, we have embarked on an intensive journey of technical exploration, solidifying our position as pioneers in precision engineering. We have cultivated an extensive reservoir of technical expertise, earning an extraordinary market reputation that distinguishes us as a trailblazer in the industry. Our precision medical machining services are unrivaled, consistently delivering products with remarkably tight tolerances and flawless surface finishes, firmly establishing us as the trusted partner of choice in the medical sector.
With four strategically positioned production bases nestled in the dynamic centers of Shenzhen and Guiyang, supported by a dedicated team exceeding 400 highly skilled employees, Donghui has meticulously assembled a robust and vertically integrated industry chain. This seamless chain unites research and development, production, and delivery, ensuring we surpass the diverse expectations of our customers with outstanding efficiency and unparalleled quality. Our cutting-edge facilities are equipped to undertake the most intricate and demanding 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)
Audited Supplier 
){kind=link}