Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by more than just obligation; our journey intertwines passion with expertise in the intricate artistry and meticulous science of precision manufacturing. Here, we are not just participants but leaders, setting new heights in industry standards. With unrivaled proficiency, we illuminate the path in high-end component manufacturing, setting the bar for impeccable precision and exceptional excellence, continually redefining industry benchmarks through each of our endeavors. As pioneers of innovation, we lead the charge in creating and delivering groundbreaking intelligent automation equipment. Our state-of-the-art solutions effortlessly fulfill the diverse needs of a wide array of industries, accommodating an extensive range of applications and requirements, including:
- Medical and Biotech: Delivering meticulously crafted, high-precision components and groundbreaking innovations for advanced medical devices, ensuring alignment with the industry's strictest quality standards.
- Semiconductors: Transforming chip production and its machinery by providing essential core components crucial to the rapid advancement of the semiconductor sector.
- New Energy: Actively contributing to the dynamic and sustainable evolution of next-generation energy equipment, championing environmentally-friendly technological advances.
- Automotive: Delivering vital components that fuel innovation in the automotive sector, supporting the creation of smart and electric vehicles with unrivaled precision and reliability.
Main Products
- We excel in crafting custom non-standard components, catering extensively to the medical, automation, semiconductor, and automotive industries, offering unparalleled precision and supreme quality in every product we create.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations are a testament to innovation, proudly showcasing an extraordinary array of over 300 meticulously curated machines, each a marvel of engineering. world-renowned precision machining tools, these machines empower us to masterfully cater to a comprehensive spectrum of equipment categories. This capability enables us to skillfully fulfill the intricate machining needs of a diverse range of industries with unmatched precision and efficiency. We are setting new benchmarks in performance and reliability, revolutionizing the standards of excellence.
- With a rich history spanning two illustrious decades, we harness our vast production experience, coupled with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, distinguishing us as true pioneers in the realm of precision engineering. We consistently deliver top-tier solutions that meet the sophisticated demands of our clients, reinforcing our role as leaders in innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unparalleled Material Examination: Guaranteeing Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we pride ourselves on an exhaustive examination process for every raw material that enters our elite facility. Our vigilant team leaves no stone unturned, conducting a detailed investigation of both chemical and physical properties to ensure our CNC machining parts are crafted from the finest quality materials available. We require suppliers to provide a Certificate of Origin and a stamped Declaration of Conformity, underscoring our relentless pursuit of quality supremacy. Only materials that embody the utmost purity and integrity are accepted, vital to our high-precision medical machining services. This stringent authentication process acts as a steadfast guardian of our exceptional quality standards at each step, reinforcing our unwavering commitment to delivering products of unmatched refinement and precision.
In-Process Quality Assurance: Achieving Precision at Every Phase
In our precise machining operations, every component undergoes rigorous scrutiny to ensure dimensions and tolerances not only meet but exceed our ambitious benchmarks. Our continuous inspection protocol operates like an impeccably tuned symphony, adeptly catching discrepancies at the earliest stages to prevent any progression of non-conforming parts. This diligent approach is crucial in mitigating the risk of substandard products, ensuring superior quality at every production phase, and upholding our unparalleled standard of excellence throughout the entire process.
Strategic First Article Inspection (FAI): Ensuring Precision and Perfection
Our First Article Inspection (FAI) stands as a critical strategic pillar, adept at foreseeing and addressing production challenges before they arise. This proactive measure serves as a reliable safeguard, preventing issues from escalating during mass production. The exhaustive precision of our FAI process is crucial in minimizing quality risks, ensuring our products consistently achieve the pinnacle of excellence. This unwavering dedication to perfection is intricately integrated into every phase of production, guaranteeing our standards always surpass the highest quality thresholds.
Comprehensive Final Inspection: The Pinnacle of Perfection
Before any product leaves our facility, it undergoes a final inspection characterized by unmatched meticulousness and rigor. This thorough process evaluates dimensions, aesthetic appeal, performance, and any customer-specific requirements with supreme precision. Our comprehensive final inspection stands as both a testament and a commitment to our relentless pursuit of quality, ensuring every product that departs our facility embodies our stringent standards. Our dedication to delivering only the highest quality products to our esteemed customers reinforces our reputation for unparalleled excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009, yet tracing its illustrious origins back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has soared to prominence as a shining beacon in the realm of high-precision component machining. For over two decades, fueled by an unwavering dedication to revolutionary innovation, we have delved deep into technical research, securing our status as unmatched pioneers and visionary leaders within the precision engineering domain. We possess an extraordinary depth of technical expertise, establishing a stellar market reputation that distinctly sets us apart as industry luminaries. Our unrivaled proficiency in precision medical machining services empowers us to consistently achieve extremely precise tolerances and impeccably flawless surface finishes, thus solidifying our position as the premier choice in the medical industry.
With four strategically positioned production bases in the vibrant and dynamic cities of Shenzhen and Guiyang, supported by a dedicated team of over 400 highly skilled professionals, Donghui has meticulously crafted a robust, vertically integrated industry chain that seamlessly combines research and development, production, and delivery. This ensures we consistently fulfill and surpass the multifaceted needs of our clients with unmatched efficiency and unparalleled quality. Our cutting-edge facilities are equipped to tackle the most intricate and challenging machining tasks, upholding our esteemed reputation for excellence and innovative leadership.
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)