Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment is not merely a routine obligation. It is a passionate endeavor to master the exquisite art and intricate science of precision manufacturing. Our unparalleled expertise stands as a beacon in the high-end component fabrication industry, casting a brilliant light on the path to achieving meticulous precision. We are at the forefront of developing and producing visionary intelligent automation equipment. Our state-of-the-art solutions are designed to serve a multitude of industries, effectively addressing diverse applications, including:
- Medical and Biotech: We deliver meticulously engineered high-precision components and groundbreaking solutions for cutting-edge medical devices, consistently upholding the highest quality standards.
- Semiconductors: We empower chip production and related equipment by providing essential core components critical to the industry's thriving success.
- New Energy: We actively engage in the robust and sustainable advancement of innovative energy equipment, propelling eco-friendly technological progress.
- Automotive: We supply vital components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We excel in creating non-standard customized components, extensively catering to the medical, automation, semiconductor, and automotive industries, where we ensure unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, 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. Our extensive suite of machinery is a testament to our commitment to excellence, ensuring that every product is manufactured to the highest standards. Whether it's complex designs or standard components, our fleet is always ready to deliver exceptional results.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, guaranteeing exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering. Our legacy is built on a foundation of continuous improvement and dedication to superior craftsmanship, inspiring trust and confidence in our partners and clients.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: Ensuring Peak Standards
Every single raw material that enters our cutting-edge warehouse embarks on a journey through an exhaustive and stringent examination process. Our meticulous analyses leave no stone unturned, delving deep into the chemical composition while conducting a thorough inspection of the physical attributes. With an unwavering commitment to quality, we require every supplier to present both a Certificate of Origin and a stamped Declaration of Conformity. This ensures that only the finest materials, selected for their integrity and purity, are used in our high-precision medical machining services. Our rigorous authentication process guarantees that these top-tier materials meet the most stringent standards, perfectly aligning with our steadfast dedication to excellence.
Intensive In-Process Quality Assurance: A Commitment to Perfection
Within our intricate and precise machining operations, every component is subjected to meticulous scrutiny, ensuring its dimensions and tolerances not only meet but exceed our stringent specifications. Our diligent and continuous inspection protocol is strategically designed to intercept potential defects at an early stage, preventing non-conforming parts from advancing to subsequent stages. This vigilant approach is pivotal in minimizing the risk of substandard goods, ensuring exquisite quality at each phase of production, and maintaining an unwavering standard of excellence throughout the entire process.
Strategic First Article Inspection (FAI): Proactively Ensuring Excellence
Our First Article Inspection (FAI) process is an essential strategic cornerstone, crucial for identifying and resolving potential production challenges at the earliest stages. This proactive approach ensures that issues are addressed before they can impact mass production. The thorough and precise nature of our FAI process is key to minimizing quality risks, ensuring that our products consistently rise to the highest standards. This dedication to excellence is woven into every facet of the production cycle, guaranteeing that we meet and exceed the loftiest quality benchmarks.
Meticulous Comprehensive Final Inspection: The Ultimate Quality Assurance
Before any product departs from our state-of-the-art facility, it undergoes a meticulous and thorough final inspection. This rigorous evaluation process examines dimensions, visual appearance, performance, and any customer-specific requirements. Our comprehensive inspection procedure is a testament to our relentless commitment to quality, ensuring that every part dispatched meets our exacting standards. We are unwavering in our mission to deliver only the highest quality products to our valued customers, upholding our reputation for excellence and reliability with each shipment.
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 beacon of expertise and innovation in high-precision basic component machining. With an unwavering commitment to innovation over the past two decades, we have immersed ourselves in technical research, establishing ourselves as trailblazers in precision engineering. We have accumulated an extensive reservoir of technical expertise, garnering a stellar market reputation that elevates us as a leader in the industry. Our capabilities in precision medical machining services are unparalleled, consistently achieving incredibly tight tolerances and pristine surface finishes, making us the preferred choice in the medical sector.
With four strategically located production bases in the bustling hubs of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This chain seamlessly intertwines research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with exceptional efficiency and unmatched quality. Our cutting-edge facilities are equipped to tackle the most intricate and demanding machining tasks, upholding our 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)