Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment transcends mere obligation. It is fueled by a passionate fervor for the exquisite artistry and meticulous science of precision manufacturing, propelling us to achieve excellence. Our unparalleled expertise serves as a beacon in the realm of high-end component fabrication, illuminating the path towards meticulous precision and unrivaled craftsmanship. As pioneers in the development and production of groundbreaking intelligent automation equipment, we provide cutting-edge solutions that cater to a multitude of industries. Our technology effectively addresses a diverse range of applications, including:
- Medical and Biotech: We deliver meticulously engineered high-precision components and innovative solutions for state-of-the-art medical devices, consistently upholding the highest quality standards.
- Semiconductors: We empower chip production and its associated equipment by supplying indispensable core components that are crucial to the industry's success and technological advancement.
- New Energy: We are actively engaged in the robust and sustainable advancement of innovative energy equipment, promoting eco-friendly technological progress.
- Automotive: We provide vital components that drive innovation within the automotive sector, supporting 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. Our commitment is to ensure unmatched precision and superior quality, meeting the most demanding standards.
Why choose us
Core Advantages
- A Fleet of Excellence: Our expansive fleet is a testament to our dedication to quality and technological advancement. Each machine in our collection is a symbol of our pursuit of perfection and our ability to meet and exceed industry standards. Our operations proudly showcase an extraordinary assortment of over 300 top-tier machines. These forms the cornerstone of our capabilities, ensuring that we consistently deliver excellence in every project. renowned for their performance and reliability. machines, each meticulously maintained to provide superior results., 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, setting us apart as a leader in the field.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This commitment guarantees exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering, consistently leading the industry with our forward-thinking approach.
State-of-the-Art Production Equipment: Our facilities are equipped with the latest technologies, fostering an environment where innovation thrives and precision is a standard.
High-Precision Inspection Equipment: Rigorous quality control is at the heart of our operations, with advanced inspection equipment ensuring that every product meets our stringent standards of excellence.
Quality Ensurance
Outstanding Incoming Material Examination
Before any raw material gains entry into our facility, it undergoes an exhaustive and stringent verification process. Our meticulous analyses encompass a profound evaluation of the chemical composition and an in-depth inspection of the physical properties. We stand firm in our dedication to quality, insisting that every supplier furnishes a Certificate of Origin paired with a stamped Declaration of Conformity. This meticulous procedure ensures only the superior materials are entrusted for use in our precision-driven medical machining services. Our rigorous authentication process ensures these materials meet the zenith of integrity and purity, seamlessly resonating with our resolute commitment to quality.
Intensive In-Process Quality Assurance Protocol
Throughout our intricate and precision-focused machining operations, each component is meticulously scrutinized to ensure that its dimensions and tolerances not only meet but exceed our demanding specifications. Our diligent and continuous inspection protocol is strategically devised to intercept potential defects at their inception, effectively preventing non-conforming parts from advancing to subsequent stages. This vigilant methodology is crucial in minimizing the risk of substandard outputs, ensuring unparalleled quality at every production phase, and upholding excellence throughout the entire process.
Strategic First Article Inspection (FAI) Excellence
Our First Article Inspection (FAI) process is the cornerstone strategy essential for identifying and resolving potential production challenges at an incipient stage. This proactive foresight prevents complications from materializing into large-scale production issues. The comprehensive and precise execution of our FAI process is vital in mitigating quality risks, ensuring our products consistently rise to the apex of standards. This unwavering dedication to excellence infuses every facet of the production cycle, ensuring that we consistently meet and surpass the most stringent quality benchmarks.
Meticulous and Comprehensive Final Inspection
Before any product departs from our premises, it undergoes a meticulous and comprehensive final inspection. This rigorous process evaluates dimensions, visual appeal, performance, and any customer-specific requirements. Our exhaustive inspection procedure exemplifies our relentless dedication to quality, ensuring that every part dispatched from our facility aligns with our exacting standards. We remain unwavering in delivering only the pinnacle of quality products to our esteemed customers, perpetuating 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 precision engineering. We Our journey has been marked by the accumulation of vast technical knowledge, propelling us to the pinnacle of industry leadership with an immaculate market reputation. Renowned for our precision medical machining services, we consistently achieve unparalleled tight tolerances and flawless surface finishes. This commitment to excellence has established us as the preferred choice in the medical sector.
With four strategically located production bases nestled in the bustling hubs of Shenzhen and Guiyang, and supported by a dedicated workforce comprising more than 400 highly skilled and expert employees, Donghui has crafted a robust and vertically integrated industry chain. This seamless integration encompasses every facet of our operations, from research and development to production and delivery, ensuring that we not only meet but exceed our customers' diverse requirements with exceptional efficiency and unmatched quality. Our state-of-the-art facilities are equipped to tackle the most intricate and challenging machining tasks, upholding 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)