Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we transcend conventional boundaries with a fervent dedication to the sublime art and intricate science of precision manufacturing excellence. Our unparalleled expertise shines brightly, illuminating the domain of high-end component fabrication with unmatched precision and finesse. Pioneering the frontiers of innovation, we spearhead the development and production of avant-garde intelligent automation equipment, offering transformative solutions that cater to a vast array of industries, meeting the demands of various applications, including:
- Medical and Biotech: Offering impeccably crafted high-precision components and groundbreaking solutions for state-of-the-art medical devices, ensuring adherence to the highest quality standards.
- Semiconductors: Facilitating chip production and its associated equipment with the provision of indispensable core components, vital to the industry's success.
- New Energy: Playing a pivotal role in the dynamic and sustainable advancement of cutting-edge energy equipment, championing eco-friendly innovations.
- Automotive: Supplying critical components that propel innovation within the automotive sector, nurturing the progression of intelligent and electric vehicles.
Main Products
- Our offerings include specialized non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, guaranteeing unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 state-of-the-art machines, representing the pinnacle of machining technology and innovation. renowned for their unparalleled performance and reliability. 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, ensuring our clients receive the highest standard of craftsmanship 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 that set us apart as leaders in the field.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Meticulous Incoming Material Inspection
Every piece of raw material entering our warehouse undergoes a thorough and rigorous examination. We conduct a meticulous analysis of its chemical composition and a detailed inspection of its physical attributes. Our steadfast dedication to excellence requires a Certificate of Origin and a stamped Declaration of Conformity from every supplier. This rigorous process ensures only the highest quality materials are chosen for our high-precision medical machining services. Our strict verification process assures that these materials adhere to the highest standards of integrity and purity, perfectly aligned with our unwavering commitment to exceptional quality.
Rigorous In-Process Quality Control
Throughout the intricate machining process, each component is meticulously assessed to guarantee its dimensions and tolerances not only align with but surpass our stringent specifications. Our diligent and continuous inspection protocol is designed to proactively identify and intercept defects, preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is fundamental to minimizing the risk of substandard goods, ensuring superior quality at every phase of production, and maintaining excellence consistently throughout the entire process.
Proactive First Article Inspection (FAI)
Our proactive First Article Inspection (FAI) strategy is crucial for identifying and resolving potential production challenges early on, preventing issues from escalating into mass production. The comprehensive and precise nature of our FAI process is critical in minimizing quality risks, ensuring our products consistently reach the zenith of standards. Every aspect of our production cycle reflects our unwavering dedication to excellence, assuring that we consistently meet and exceed the highest quality standards.
Thorough Comprehensive Final Inspection
Before any product leaves our facility, it undergoes a meticulous and comprehensive final inspection. This process rigorously evaluates its dimensions, visual appearance, performance, and any customer-specific requirements. Our exhaustive inspection is a testament to our relentless dedication to quality, ensuring every part dispatched from our facility meets our exacting standards. We are committed to delivering only the highest 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 been passionately devoted to mastering the intricate art and science of high-precision basic component machining. With an unwavering commitment to innovative excellence over the past two decades, we have explored the depths of technical research, solidifying our position as trailblazers in the realm of precision engineering. We have accumulated a vast reservoir of technical expertise, crafting a remarkable market reputation that distinguishes us as industry leaders. Our unmatched capabilities in precision medical machining services consistently ensure the achievement of extremely tight tolerances and flawless surface finishes, making us the preferred partner of choice for the medical sector.
With four strategically positioned production bases in the vibrant hubs of Shenzhen and Guiyang, bolstered by a dedicated team of over 400 highly skilled employees, Donghui has developed a comprehensive and vertically integrated industry chain. This chain seamlessly interlinks research and development, production, and delivery processes, ensuring that we meet and surpass the diverse needs of our customers with exceptional efficiency and unparalleled quality. Our cutting-edge facilities are equipped to undertake the most intricate and demanding machining tasks, unwaveringly upholding our reputation for excellence and 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)