Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication transcends simple obligation; it is driven by a passionate fervor for the exquisite craft and meticulous science of precision manufacturing. Our unmatched expertise serves as a guiding light in the realm of high-end component fabrication, illuminating the path to meticulous precision. We are pioneering the development and production of groundbreaking intelligent automation equipment. Our cutting-edge solutions cater to a multitude of industries, effectively addressing diverse applications, including:
- Medical and Biotech: Delivering meticulously engineered high-precision components and innovative solutions for state-of-the-art medical devices, upholding the pinnacle of quality standards.
- Semiconductors: Empowering chip production and its associated equipment by supplying indispensable core components that are crucial to the industry's success.
- New Energy: Engaging in the vigorous and sustainable advancement of innovative energy equipment, furthering eco-friendly technological progress.
- Automotive: Providing vital components that fuel innovation within the automotive sector, aiding the evolution of smart and electric vehicles.
Main Products
- We specialize in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring 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. renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This impressive capability allows us to expertly cater to the intricate machining needs of diverse industries, providing unmatched precision and efficiency.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation-traits that distinctly set us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Stellar Initial Material Assessment
Each raw material entering our warehouse undergoes an exhaustive and rigorous evaluation. Our meticulous analyses cover both chemical composition and physical properties, ensuring the utmost quality. We maintain unwavering dedication by requiring every supplier to furnish a Certificate of Origin along with a stamped Declaration of Conformity, thereby guaranteeing that only premium-grade materials are utilized in our high-precision medical machining services. This rigorous authentication process assures that these materials meet the apex standards of integrity and purity, perfectly resonating with our steadfast commitment to outstanding quality.
Intensive In-Process Quality Assurance
Within our intricate machining operations, every component is scrutinized with meticulous precision to ensure that its dimensions and tolerances not only meet but surpass our high standards. Our continuous inspection protocol is strategically developed to intercept potential defects at an early stage, preventing non-conformities from advancing further. This vigilant approach is crucial in minimizing risks of substandard goods, assuring superior quality at every production phase, and maintaining excellence throughout the entire process journey.
Proactive First Article Inspection (FAI) Strategy
Our First Article Inspection (FAI) serves as a core strategy to identify and resolve potential production challenges at the earliest opportunity. This proactive stance effectively prevents issues from escalating into mass production. The comprehensive and precise nature of our FAI process is vital in mitigating quality risks, ensuring our products consistently achieve the highest standards. Our unwavering dedication to excellence permeates every facet of the production cycle, guaranteeing that we meet and excel beyond the highest quality benchmarks.
Meticulous Comprehensive Final Inspection
Prior to dispatch, every product undergoes a meticulous and comprehensive final inspection, rigorously evaluating dimensions, visual appearance, performance, and any specific customer requirements. This extensive inspection process stands as a testament to our relentless commitment to quality, ensuring each part leaving our facility meets our exacting standards. Our resolute dedication promises only the highest quality products to our esteemed customers, fortifying 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 relentless innovation over the past two decades, we have delved deep into groundbreaking technical research, establishing ourselves as true 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 a dynamic leader in the industry. Our unparalleled capabilities in precision medical machining services consistently achieve incredibly tight tolerances and impeccable surface finishes, making us the preferred and trusted choice in the medical sector.
With four strategically located production bases in the thriving 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 that seamlessly weaves together research, development, production, and efficient delivery. This ensures 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 in the industry.
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)