Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment extends beyond mere duty; it is fueled by an unyielding passion for the art and science of precision manufacturing-a realm where excellence is crafted with dedication and skill. Our unparalleled expertise is a beacon in the sphere of high-end component fabrication, guiding you to the zenith of meticulous precision and unrivaled craftsmanship. We are at the forefront of innovating and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve an array of industries, addressing multifaceted applications, including:
- Medical and Biotech: Providing meticulously crafted high-precision components and pioneering solutions for cutting-edge medical devices, ensuring adherence to the highest quality standards.
- Semiconductors: Bolstering chip production and its associated apparatus with essential core components that are vital to the industry's prosperity.
- New Energy: Spearheading sustainable and innovative progress in new energy equipment, advancing eco-friendly technological horizons.
- Automotive: Delivering indispensable components that drive innovation in the automotive industry, supporting the evolution of smart and electric vehicles.
Main Products
- We excel in producing non-standard, customized components, extensively catering to the medical, automation, semiconductor, and automotive sectors. We guarantee unparalleled precision and supreme 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, ensuring that every project we undertake is executed with exceptional accuracy. Our equipment portfolio is not just about quantity, but about the quality and versatility that facilitate our leading-edge solutions.
- 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. This unique combination sets us apart as pioneers in the realm of precision engineering, where tradition meets technology to craft solutions that are both cutting-edge and reliable, satisfying the most stringent industry standards.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Impeccable Incoming Material Examination
Every raw material entering our warehouse undergoes an exhaustive, stringent examination process. Our meticulous analyses not only evaluate the chemical composition but also include a thorough inspection of physical properties. We are resolute in our commitment to quality, requiring every supplier to furnish a Certificate of Origin and a stamped Declaration of Conformity. This ensures that solely the finest materials are chosen for our high-precision medical machining services. Our rigorous authentication process assures that these materials meet the highest standards of integrity and purity, perfectly aligning with our unwavering dedication to excellence.
Intensive In-Process Quality Assurance
In our intricate and precise machining operations, each component is subject to meticulous scrutiny to ensure its dimensions and tolerances not only meet but exceed our stringent specifications. Our diligent and ongoing inspection protocol is expertly crafted to intercept potential defects early on, thereby preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is critical in minimizing the risk of substandard goods, ensuring superior quality at each phase of production, and upholding excellence throughout the entire process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process functions as an essential strategy crucial for identifying and resolving potential production challenges early. This proactive approach forestalls issues from escalating into mass production. The comprehensive and exacting nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently reach the pinnacle of standards. This commitment to excellence infuses every facet of the production cycle, guaranteeing we meet and exceed the highest quality benchmarks.
Meticulous and Comprehensive Final Inspection
Before any product departs our facility, it undergoes an exacting and comprehensive final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our thorough inspection process is a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are steadfast in delivering only the highest quality products to our valued customers, upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its foundational roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has stood as a bastion of unmatched expertise in high-precision basic component machining. With an unwavering dedication to innovation over the past two decades, we have delved profoundly into technical research, establishing ourselves as pioneers in the realm of precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as an indomitable leader in the industry. Our capabilities in precision medical machining services are unparalleled, consistently achieving incredibly tight tolerances and pristine surface finishes, making us the preferred choice in the medical sector.
With four strategically positioned production bases in the dynamic and bustling hubs of Shenzhen and Guiyang, driven by a dedicated workforce of over 400 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 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)