Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment surpasses mere duty; it is inspired by a passionate zeal for the art and meticulous science of precision manufacturing, where every creation speaks of our dedication to excellence. Our unparalleled expertise shines as a beacon in the elite world of high-end component fabrication, illuminating the path with unwavering precision and setting new standards of excellence. We are at the forefront of innovation, spearheading the development and production of revolutionary intelligent automation equipment. Our cutting-edge solutions serve a myriad of industries, effectively meeting diverse applications, including:
- Medical and Biotech: Offering meticulously crafted high-precision components coupled with innovative solutions for cutting-edge medical devices, guaranteeing adherence to the highest quality benchmarks.
- Semiconductors: Enhancing chip production and its related equipment through the provision of essential core components that are vital to the industry's prosperity.
- New Energy: Actively engaging in the robust and sustainable development of groundbreaking energy equipment, promoting eco-friendly technological advancements for a greener future.
- Automotive: Delivering crucial components that drive innovation within the automotive industry, supporting the evolution of intelligent and electric vehicles with precision and reliability.
Main Products
- We excel in crafting non-standard customized components, serving the medical, automation, semiconductor, and automotive sectors with unparalleled precision and exceptional quality, ensuring absolute satisfaction and performance.
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 expansive range of machinery allows us to deliver exceptional solutions tailored to the unique requirements of our esteemed customers.
- With a rich history spanning two decades, we leverage vast production experience and substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation. Our commitment to excellence positions us as pioneers in precision engineering, ensuring that every product we deliver stands as a testament to our dedication and expertise.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Remarkable Incoming Material Examination
Each raw material that enters our state-of-the-art warehouse undergoes an exhaustive and stringent examination process, ensuring only the finest are selected for our premium high-precision medical machining services. Our meticulous analyses evaluate every aspect, from the chemical composition to the minute physical properties, leaving no stone unturned. We maintain our unwavering commitment to quality by mandating every supplier to provide a Certificate of Origin along with a stamped Declaration of Conformity. This rigorous authentication process guarantees that materials not only meet the highest standards of integrity and purity but also perfectly align with our steadfast dedication to delivering unmatched quality.
In-Depth In-Process Quality Assurance
Within our intricate and precise machining operations, a meticulous scrutiny of every component is paramount. We ensure that their dimensions and tolerances not only meet but exceed our stringent specifications. Our diligent and continuous inspection protocols are crafted to intercept potential defects at the earliest stage, effectively preventing any non-conforming parts from advancing to subsequent stages. This vigilant approach is essential in significantly reducing the risk of substandard goods, thereby guaranteeing superior quality at every phase of production and consistently maintaining excellence throughout the entire process.
Strategic Precision First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a strategic cornerstone, playing a crucial role in identifying and resolving potential production challenges at their inception. This proactive approach is invaluable in preventing issues from escalating into mass production, thus safeguarding the quality of our outputs. The comprehensive and precise nature of our FAI process is pivotal in minimizing quality risks, ensuring our products persistently ascend to the highest echelons of standards. Our unwavering dedication to excellence infuses every aspect of the production cycle, guaranteeing that we consistently meet and exceed the most rigorous quality benchmarks.
Meticulous and All-Encompassing Final Inspection
Before any product leaves our cutting-edge facility, it is subjected to a meticulous and thorough final inspection, one that rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless commitment to quality, ensuring that every single part dispatched from our facility meets our exacting standards. We are unwavering in our pledge to deliver only the highest quality products to our valued customers, thereby upholding our sterling reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its robust founding roots established in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen as a beacon of innovation and expertise in the realm of high-precision basic component machining. With an unwavering commitment to cutting-edge innovation over the past two dynamic decades, we have delved deep into the world of technical research, establishing ourselves as pioneers in precision engineering, renowned for our dedication and breakthrough advancements. We have amassed a treasure trove of technical expertise, earning an enviable market reputation that differentiates us as industry leaders. Our unrivaled capabilities in precision medical machining services are second to none, consistently achieving exceedingly tight tolerances and flawless surface finishes. This dedication makes us the premier choice in the medical sector, where precision is paramount.
With four strategically positioned production bases in the bustling commercial hubs of Shenzhen and Guiyang, empowered by a dedicated workforce of over 400 exceptionally skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless chain interweaves research and development, production, and delivery, ensuring that we not only meet but also exceed the diverse needs of our valued customers with extraordinary efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to tackle the most intricate and demanding machining tasks, reinforcing 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)