Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment surpasses mere duty; it stems from an unbridled passion for the fine art and intricate science of precision manufacturing. Our dedication to excellence in crafting precision components makes us a leader in the field. Our unparalleled expertise acts as a beacon in the world of high-end component fabrication, guiding the way to flawless precision and exceptional quality. We are trailblazers in the innovation and manufacturing of revolutionary intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, effectively addressing a variety of applications, including:
- Medical and Biotech: Offering meticulously crafted high-precision components and pioneering solutions for cutting-edge medical devices, continuously meeting the highest quality standards in the industry.
- Semiconductors: Empowering the semiconductor industry by providing essential core components for chip production and related equipment, crucial to driving industry success.
- New Energy: Actively contributing to the dynamic and sustainable development of innovative energy equipment, advancing environmental-friendly technological progress.
- Automotive: Supplying key components that drive innovation in the automotive industry, supporting the growth of smart and electric vehicles.
Main Products
- We excel in producing non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unmatched precision and unparalleled quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 internationally acclaimed machines, empowering us to impeccably handle an expansive range of equipment categories. This capability allows us to expertly meet the intricate machining demands of diverse industries with unmatched precision and efficiency.
- With a rich history spanning two decades, we harness extensive production experience alongside substantial technical and process expertise. This ensures exceptional quality and groundbreaking innovation, distinguishing us as pioneers in the field of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Scrutiny of Incoming Materials
Every single piece of raw material that enters our storied warehouse undergoes an exhaustive, rigorous, and painstaking examination process. This comprehensive scrutiny begins with the evaluation of the chemical composition and extends to a meticulous inspection of all physical properties. Our steadfast commitment to quality demands that every supplier provides us with a certified Certificate of Origin and a stamped Declaration of Conformity. These documents are pivotal in ensuring that only the finest materials are handpicked for our high-precision medical machining services. Our thorough authentication process is designed to guarantee that these materials adhere to the highest standards of integrity and purity, seamlessly aligning with our unwavering dedication to upholding quality.
Rigorous In-Process Quality Assurance
Within our sophisticated and precise machining operations, each component is subjected to meticulous scrutiny, ensuring its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and continuous inspection protocol is thoughtfully designed to intercept potential defects at the earliest stage, effectively preventing any non-conforming parts from advancing to subsequent production stages. This vigilant approach is instrumental in mitigating the risks of substandard goods, thus ensuring superior quality at every phase of production and maintaining our tradition of excellence throughout the entire process.
Strategic Foundation: First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a cornerstone strategy, crucial for identifying and resolving potential production obstacles at an early stage. This proactive approach effectively prevents issues from escalating into the realm of mass production. The comprehensive and precise nature of our FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach and exceed the pinnacle of standards. Our unwavering dedication to excellence permeates every aspect of our production cycle, ensuring that we meet and exceed the loftiest of quality benchmarks.
Thorough and Comprehensive Final Inspection
Before any product sets forth from our facility, it is subjected to a meticulous and exhaustive final inspection. This rigorous process meticulously evaluates dimensions, visual appearance, performance, and any specific customer requirements. Our comprehensive inspection process stands as a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility not only meets but exceeds our stringent standards. We remain steadfast in our mission to deliver only the highest quality products to our esteemed customers, perpetuating our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established in 2009, with its origins dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of excellence in the realm of high-precision basic component machining. Our steadfast commitment to innovation over the past two decades has propelled us into the forefront of technical research, earning our place as trailblazers in the world of precision engineering. Our team has garnered an impressive array of technical knowledge, building a market reputation that distinguishes us as industry frontrunners. We excel in precision medical machining services, consistently achieving extraordinary tight tolerances and flawless surface finishes. This has positioned us as the preferred partner within the medical sector, known for our unparalleled quality and precision.
With four strategically located production bases, nestled in the vibrant cities of Shenzhen and Guiyang, supported by a dynamic workforce of over 400 highly skilled employees, Donghui has developed a resilient and vertically integrated industry chain. This seamless integration of research and development, production, and delivery ensures we consistently meet and exceed the diverse requirements of our clientele with remarkable efficiency and unmatched quality. Our cutting-edge facilities are adept at tackling the most complex and challenging machining projects, upholding our legacy of 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)