Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not just a duty; it is a fervent passion for the sublime art and exacting science of precision manufacturing. We transcend mere production, setting a standard of excellence that reflects our dedication to the craft. Our unparalleled expertise shines like a beacon in the world of high-end component fabrication, charting the course to extraordinary precision and excellence. We are at the forefront of innovation, developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions are designed to serve a vast array of industries, addressing an extensive range of applications, such as:
- Medical and Biotech: We deliver meticulously crafted, high-precision components and forward-thinking solutions for cutting-edge medical devices, maintaining the highest echelons of quality standards.
- Semiconductors: We empower the realm of chip production and its affiliated equipment by providing essential core components that are intrinsic to the industry's prosperity.
- New Energy: Actively participating in the dynamic and sustainable advancement of innovative energy solutions, propelling eco-friendly technological evolution forward.
- Automotive: We supply critical components that drive innovation within the automotive sphere, facilitating the transformation of smart and electric vehicles.
Main Products
- We are experts in creating non-standard customized components, extensively serving industries such as medical, automation, semiconductor, and automotive, ensuring unmatched precision and unparalleled 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.
- Boasting a rich legacy of two decades, we harness vast production expertise intertwined with significant technical and process acumen. This guarantees superior quality and forward-thinking innovation, positioning us as trailblazers in the precision engineering arena.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: Setting the Gold Standard
Every piece of raw material that enters our warehouse is subjected to a comprehensive and rigorous examination process. We conduct meticulous analyses that involve a detailed evaluation of the chemical composition alongside a thorough inspection of physical properties. Our unwavering commitment to excellence mandates that every supplier must provide a Certificate of Origin and a stamped Declaration of Conformity. This meticulous approach guarantees that only the finest materials are chosen for use in our high-precision medical machining services. Our rigorous authentication process ensures that these materials adhere to the highest standards of integrity and purity, aligning perfectly with our steadfast commitment to quality.
Intensive In-Process Quality Assurance: Commitment Beyond the Norm
In our intricate and precise machining operations, every component is carefully scrutinized to ensure its dimensions and tolerances not only meet but exceed our stringent specifications. Our vigilant inspection protocol is strategically designed to intercept potential defects at the earliest possible stage, preventing non-conforming parts from advancing to subsequent phases. This diligent approach is crucial in minimizing the risk of substandard goods, ensuring exceptional quality at each production stage, and preserving excellence throughout the entire process.
Strategic First Article Inspection (FAI): A Proactive Pledge to Perfection
Our First Article Inspection (FAI) process is a cornerstone strategy essential for detecting and addressing potential production challenges at the outset. This proactive approach prevents issues from escalating into mass production. Our FAI process is comprehensive and precise, vital for minimizing quality risks and ensuring our products consistently reach the highest standards. This unwavering dedication to excellence infuses every aspect of the production cycle, ensuring we meet and exceed the highest quality benchmarks.
Meticulous Comprehensive Final Inspection: A Testament to Uncompromising Quality
Before any product departs from our facility, it undergoes an exhaustive and meticulous final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our thorough inspection process is a testament to our unwavering commitment to quality, guaranteeing that every part dispatched from our facility meets our stringent standards. We are committed to delivering only the highest quality products to our valued customers, maintaining 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 emerged as a bastion of expertise in high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in the captivating realm of precision engineering. We have amassed a wealth of unparalleled technical expertise, earning a stellar market reputation that distinctly sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving incredibly tight tolerances and impeccable surface finishes, making us the preferred choice in the medical sector where precision and reliability are paramount.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 highly skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain seamlessly weaves together research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs of our esteemed customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are meticulously equipped to handle the most intricate and demanding machining tasks, maintaining 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)