Product application
At the heart of Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. is an unwavering commitment that goes beyond duty. Our fervent passion fuels our craft, marrying the fine art of precision with the exacting science of top-tier manufacturing. Our unrivaled expertise stands as a beacon in the domain of elite component fabrication, lighting the way towards unparalleled precision and accuracy. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our leading-edge solutions span a vast array of industries, effectively meeting the needs of diverse applications, including:
- Medical and Biotech: Delivering exquisitely engineered, high-precision components and pioneering solutions for cutting-edge medical devices, maintaining the highest echelons of quality standards.
- Semiconductors: Bolstering chip production and its critical equipment with essential core components that are indispensable to the industry's thriving success.
- New Energy: Actively participating in the dynamic and sustainable growth of innovative energy equipment, championing eco-conscious technological advancement.
- Automotive: Supplying essential components that drive innovation in the automotive field, supporting the progress of smart and electric vehicle technology.
Main Products
- We excel in non-standard customized components, extensively supporting the medical, automation, semiconductor, and automotive sectors, delivering unparalleled 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 exceptional 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 extensive production experience combined with substantial technical and process expertise, guaranteeing exceptional quality and forward-thinking innovation. This distinct combination sets us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Benchmark Incoming Material Inspection
Each piece of raw material that graces our warehouse undergoes an exhaustive and stringent examination process to ensure unyielding quality. Our meticulous analyses delve into the depths of chemical composition and conduct a thorough inspection of the physical properties. Our unwavering commitment to excellence is mirrored by our requirement for every supplier to provide a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the most superior materials grace our high-precision medical machining services. Our rigorous authentication process guarantees that these materials embody the highest standards of integrity and purity, seamlessly aligning with our steadfast dedication to quality.
In-Process Quality Assurance Revolution
Within our intricate and precision-driven machining operations, every component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but soar beyond our exacting specifications. Our diligent and continuous inspection protocol is strategically crafted to intercept potential defects early, effectively preventing non-conforming parts from progressing to subsequent stages. This vigilant approach is paramount in minimizing the risk of substandard goods, ensuring superior quality at each phase of production, and maintaining unwavering excellence throughout the entire process.
Strategic First Article Inspection (FAI) Mastery
Our First Article Inspection (FAI) process stands as a foundational strategy, pivotal in identifying and resolving potential production challenges at their inception. This proactive approach curtails issues from escalating into mass production. The comprehensive and precise nature of our FAI process is fundamental in minimizing quality risks, ensuring our products consistently ascend to the pinnacle of standards. This unwavering dedication to excellence infuses every aspect of the production cycle, guaranteeing that we meet and exceed the highest quality benchmarks.
Meticulous and Comprehensive Final Inspection
Before any product departs our facility, it is subject to a meticulous and exhaustive final inspection. This rigorous process evaluates dimensions, visual appearance, performance, and any customer-specific requirements with unparalleled scrutiny. Our comprehensive inspection process stands as a testament to our relentless pursuit of quality, ensuring that every part dispatched from our facility meets our exacting standards. We are unwavering in our quest to deliver only the highest quality products to our esteemed customers, upholding our illustrious 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 precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that 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.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has crafted a robust and vertically integrated industry chain. This chain effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are 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)