Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are fueled by a profound passion, seamlessly merging it with our expertise in the art and science of precision manufacturing. As industry pioneers, we don't just meet standards, we redefine them, propelling the industry to unparalleled heights. Our exceptional expertise lights the way in high-end component manufacturing, achieving flawless precision and setting new benchmarks of excellence with each project, constantly pushing the boundaries of what's possible in the industry. As innovators, we are leaders in crafting groundbreaking intelligent automation equipment. Our state-of-the-art solutions effortlessly serve a wide array of industries, addressing diverse applications and needs, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and cutting-edge solutions for innovative medical devices, ensuring adherence to the most stringent quality standards in the industry.
- Semiconductors: Transforming chip manufacturing and its machinery by providing key core components essential to the rapid advancement of the semiconductor industry.
- New Energy: Pioneering the dynamic and sustainable evolution of next-generation energy equipment, leading eco-friendly technological breakthroughs.
- Automotive: Delivering essential components that drive innovation in the automotive sector, supporting the development of smart and electric vehicles with unparalleled precision and reliability.
Main Products
- We take pride in manufacturing custom non-standard components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and top-tier quality in every creation.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations serve as a beacon of innovation and excellence, proudly exhibiting a dazzling collection of over 300 meticulously curated machines. Each machine stands as a masterpiece of engineering marvel, reflecting our commitment to top-tier precision. world-renowned precision machining toolsWith these world-renowned precision machining tools, we are empowered to adeptly cater to an extensive array of equipment categories. This competency enables us to expertly meet the intricate machining needs of a wide variety of industries, delivering exceptional precision and efficiency. We are transforming industry standards by setting unprecedented benchmarks in performance and dependability, redefining the standards of excellence.
- With a rich history spanning two illustrious decades, we expertly harness our vast production experience, alongside substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, setting us apart as true pioneers in the realm of precision engineering. We consistently deliver premium solutions that exceed the sophisticated demands of our clients, bolstering our reputation as leaders in innovation and excellence.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unrivaled Incoming Material Examination: Assuring Impeccable Purity and Unwavering Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., each raw material that graces our esteemed facility is subject to an exhaustive and meticulous examination. Our vigilant team leaves no stone unturned, scrutinizing every aspect to ensure only the finest materials make the cut for our precision CNC machining parts. This comprehensive analysis delves deeply into the chemical and physical properties, ensuring an unwavering standard of excellence. Suppliers must provide a Certificate of Origin and a stamped Declaration of Conformity, embodying our relentless pursuit of quality. We accept only materials that exemplify purity and integrity, vital to our high-precision medical machining services. Our stringent verification process operates as a vigilant guardian, diligently upholding exceptional quality standards at every juncture, reinforcing our commitment to delivering products of unparalleled refinement and precision.
In-Process Quality Assurance: Mastering the Art of Precision with Unmatched Expertise
Within the seamless flow of our precision machining operations, every component undergoes meticulous scrutiny to ensure dimensions and tolerances not only meet but exceed our ambitious standards. Our continuous inspection protocol is akin to a finely tuned symphony, expertly identifying discrepancies as early as possible to prevent non-conforming parts from progressing. This vigilant approach is crucial for mitigating the risk of substandard products, ensuring that our superior quality is safeguarded and our standard of excellence remains unyielding throughout the entire production process.
Strategic First Article Inspection (FAI): Unveiling Precision to Anticipate Flawlessness
Our First Article Inspection (FAI) serves as a strategic cornerstone, equipped with the foresight to identify and address potential production challenges from the very beginning. This proactive measure acts as a steadfast safeguard, averting issues before they escalate into widespread production dilemmas. The exhaustive precision of our FAI process is crucial for minimizing quality risks, ensuring our products consistently reach the pinnacle of excellence. This unwavering commitment to perfection permeates every phase of our production journey, ensuring that our standards consistently transcend the highest echelons of quality.
Comprehensive Final Inspection: Reaching the Pinnacle of Perfection
Before any product leaves our facility, it is subjected to a final inspection of unmatched meticulousness and rigor. This comprehensive process scrutinizes dimensions, visual appeal, performance, and specific customer requirements with extraordinary precision. Our final inspection not only serves as a testament but as a steadfast commitment to our relentless pursuit of quality. Ensuring every product that exits our doors is a beacon of our exacting standards, this dedication solidifies our reputation for unparalleled excellence and unwavering reliability, delivering only the highest quality to our esteemed customers.
Packaging & Shipping
Company Profile
Founded in 2009, tracing its illustrious origins back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a luminary in the world of high-precision component machining. For more than two decades, driven by an unwavering commitment to revolutionary innovation, we have delved into technical research, securing our status as pioneers and visionary leaders within the precision engineering domain. We possess an extraordinary depth of technical expertise, allowing us to forge a stellar market reputation that distinctly sets us apart as industry luminaries. Our unmatched proficiency in precision medical machining services enables us to consistently achieve extremely precise tolerances and impeccably flawless surface finishes, making us the premier choice in the medical industry.
With four strategically located production bases in the vibrant 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 blends research and development, production, and delivery. This ensures we consistently fulfill and exceed 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)