Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering dedication to perfection drives us to excel in the delicate balance of art and science that is essential for superior manufacturing. With unparalleled skill and expertise, we navigate the esteemed realm of high-precision component manufacturing, leading the way with exceptional proficiency. As trailblazers of innovation, we establish the industry standards in the creation and delivery of avant-garde intelligent automation equipment. Our cutting-edge solutions harmoniously integrate across a vast range of industries, adeptly fulfilling diverse needs in numerous applications, such as:
- Medical and Biotech: Providing meticulously engineered, ultra-high-precision components and visionary solutions designed for the forthcoming wave of medical devices.
- Semiconductors: Enhancing chip production and associated equipment with vital components that are both critical and crucial.
- New Energy: Playing a key role in advancing innovative, sustainable solutions for next-generation energy equipment.
- Automotive: Providing indispensable components that drive innovation in the automotive industry, supporting the development of smart and electric vehicles.
Main Products
- Masterfully crafted, our bespoke non-standard customized components serve pivotal industries such as medical, automation, semiconductor, and automotive with unmatched excellence.
Why choose us
Core Advantages
- A Fleet of Excellence: A Benchmark of Industrial Prowess Our operations are powered by an extraordinary fleet of over 300 of the industry's most advanced machines, ensuring an impressive array of equipment categories. This vast assembly drives our leadership in innovation and adaptability, delivering state-of-the-art solutions tailored to our clients' needs. These Top-Tier Branded machinery units serve as the cornerstone of our precision-driven manufacturing operations. Armed with our superior machines, we masterfully execute complex and demanding machining tasks across multiple industries, achieving remarkable precision and efficiency. Our extensive capabilities guarantee adherence to the most stringent quality standards while providing custom solutions meticulously crafted for the distinct demands of our valued clients.
- With an illustrious 20-year heritage, we leverage a profound reservoir of manufacturing experience, seamlessly combined with significant technical expertise and process strengths. This synergy ensures premium quality and revolutionary innovation, enabling us to consistently deliver exceptional products that exceed industry standards and redefine excellence.
State-of-the-Art Production Equipment: Cutting-Edge Technology for Unmatched Quality
High-Precision Inspection Equipment: Ensuring Flawless Accuracy and Consistency
Quality Ensurance
Exemplary Incoming Material Inspection: Our dedication to surpassing industry norms is evident in our unmatched precision and attention to detail.
In our quest for excellence, every single piece of raw material that enters our meticulously secured warehouse undergoes a rigorous and unprecedented evaluation process, setting a new industry standard in quality assurance. Our methodical approach involves a thorough analysis of chemical composition coupled with an exhaustive examination of physical properties. We demand excellence from our suppliers, requiring a Certificate of Origin and a stamped Declaration of Conformity, which ensures that only the finest materials are incorporated into our sophisticated medical machining services. This stringent authentication process upholds material integrity and purity, seamlessly aligning with our unwavering dedication to superior standards of quality.
In-Process Quality Control of Unrivaled Rigor: Our unwavering attention to detail ensures we are always on the path to achieving perfection.
During the complex machining process, every component is subjected to meticulous scrutiny, ensuring that dimensions and tolerances align flawlessly with our demanding specifications. This continuous inspection protocol is vital in proactively identifying and intercepting any potential defects, thereby preventing non-conforming parts from progressing further. Through this vigilant approach, we greatly reduce the risk of producing substandard products, guaranteeing that superior quality is consistently maintained throughout every phase of production.
Proactive and Comprehensive First Article Inspection (FAI): The foundation of our impeccable precision and quality excellence.
The First Article Inspection (FAI) process is the cornerstone of our quality assurance strategy, skillfully identifying and resolving potential production issues at the earliest stages. This proactive approach ensures that problems are contained before they can impact mass production. Our comprehensive FAI process is crucial in minimizing quality risks, ensuring our products consistently achieve the highest standards, and reflecting our unyielding dedication to excellence throughout every phase of the production cycle.
Comprehensive and Detailed Final Inspection: The Ultimate Assurance of Superior Quality and Precision.
Before any product exits our facility, it undergoes a thorough final inspection. This meticulous assessment includes dimensions, visual appearance, and performance, while also taking into account customer-specific requirements. This comprehensive inspection stands as a testament to our relentless pursuit of quality, ensuring that every part we deliver meets our stringent standards, thus offering only the finest quality products to our esteemed and valued customers.
Packaging & Shipping
Company Profile
Founded in the remarkable year of 2009, with roots tracing back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has firmly established itself as a paragon of precision and innovation within the high-precision component machining industry. Over two decades, we have passionately crafted our legacy as trailblazers in precision engineering, driven by an insatiable passion and unwavering dedication to the creative art and meticulous science of engineering. At every step, we have vigorously pursued technical advancements, consistently setting industry benchmarks of unparalleled excellence that distinguish us as industry leaders. We have cultivated a profound depth of technical acumen, earning our place as market leaders celebrated for our extraordinary excellence. Our unmatched expertise in precision medical machining services consistently achieves the most rigorous tolerances and delivers flawless surface finishes. This cements our status as the premier choice in the medical sector, where our precision and reliability continue to garner unwavering trust and admiration.
With four strategically positioned production bases, nestled in the vibrant and burgeoning economic centers of Shenzhen and Guiyang, supported by an exceptional team of over 400 highly skilled professionals, Donghui has meticulously crafted a resilient, vertically integrated industry chain. This system seamlessly unites research and development, elite production capabilities, and impeccable delivery processes, ensuring we not only meet but exceed the diverse expectations of our clients with remarkable efficiency and unsurpassed quality. Our cutting-edge facilities are equipped to handle the most intricate and demanding machining projects, reaffirming our prestigious reputation for excellence and pioneering 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)