Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we aren't just committed to fulfilling duties; our passion is deeply rooted in the exquisite artistry and scientific rigor of precision manufacturing. Our devotion fuels our pursuit of perfection. Our unparalleled expertise shines brightly in the world of high-end component fabrication, serving as a beacon that guides us to achieve the pinnacle of meticulous precision and innovation. We are trailblazers in crafting groundbreaking intelligent automation equipment. Our state-of-the-art solutions span across numerous industries, skillfully addressing a diverse range of applications, such as:
- Medical and Biotech: We deliver meticulously engineered, high-precision components and cutting-edge solutions for the most advanced medical devices, ensuring the highest quality standards are met.
- Semiconductors: We empower the semiconductor industry by supplying essential core components necessary for chip production and the success of its associated equipment.
- New Energy: We actively participate in the sustainable and dynamic advancement of innovative energy equipment, propelling eco-friendly technological progress forward.
- Automotive: We provide critical components that drive innovation within the automotive industry, supporting the development of smart and electric vehicles.
Main Products
- We excel in creating non-standard customized components, vastly serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unparalleled precision and exceptional quality.
Why choose us
Core Advantages
- A Fleet of Excellence: Commanding a remarkable array of advanced machinery, we exemplify excellence in precision engineering, positioning ourselves as leaders in the field. Our operations proudly showcase an extraordinary assortment of over 300 cutting-edge machines. renowned machines of exceptional caliber,enabling us to expertly manage an extensive range of equipment categories. This capability empowers us to adeptly fulfill the intricate machining needs of diverse industries with unmatched precision and efficiency.
- With a rich legacy spanning two decades, we harness vast production experience combined with robust technical and process prowess, ensuring superior quality and innovative solutions. Our commitment to excellence cements our status as trailblazers in the realm of precision engineering.
State-of-the-Art Production Equipment: Our facility is equipped with state-of-the-art production equipment, ensuring every product meets the highest standards of precision and reliability.
High-Precision Inspection Equipment: To uphold our dedication to quality, we employ high-precision inspection equipment, guaranteeing that every component we produce is flawless and meets stringent specifications.
Quality Ensurance
Unparalleled Incoming Material Examination
Every raw material that enters our warehouse is subjected to an exhaustive and rigorous examination process. Our meticulous assessments include detailed evaluations of the chemical composition and an in-depth inspection of the physical properties. We maintain an unwavering commitment to quality by requiring each supplier to provide a Certificate of Origin and a stamped Declaration of Conformity. This dedication ensures that only the finest and most reliable materials are selected for use in our high-precision medical machining services. Our stringent authentication process guarantees that these materials adhere to the highest standards of integrity and purity, perfectly aligning with our steadfast dedication to quality excellence.
In-Depth In-Process Quality Assurance
Throughout our complex and precise machining operations, each component undergoes meticulous scrutiny to ensure its dimensions and tolerances not only meet but exceed our stringent specifications. Our diligent and continuous inspection protocol is strategically designed to detect and intercept potential defects at an early stage, thereby preventing non-conforming parts from advancing to subsequent production stages. This vigilant approach is crucial in minimizing the risk of substandard goods, ensuring superior quality at each phase of production, and maintaining a standard of excellence throughout the entire manufacturing process.
Strategic and Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a foundational strategy vital for identifying and resolving potential production challenges early on. This proactive approach helps prevent issues from escalating into mass production. The comprehensive and precise nature of our FAI process is essential in minimizing quality risks and ensures our products consistently rise to the pinnacle of standards. This unwavering dedication to excellence permeates every aspect of the production cycle, guaranteeing that we not only meet but exceed the highest quality benchmarks.
Meticulous and Thorough Final Inspection
Before any product leaves our facility, it undergoes a meticulous and comprehensive final inspection. This process rigorously evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our thorough inspection process is a testament to our relentless commitment to quality, ensuring that every part dispatched from our facility meets our exacting standards. We are dedicated to delivering only the highest quality products to our valued customers, firmly upholding our reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since its powerful emergence in 2009, with roots firmly planted since 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has risen as a beacon of mastery in the realm of high-precision basic component machining. With steadfast dedication to innovation over the past two decades, we have immersed ourselves in cutting-edge technical research, positioning ourselves as true pioneers in the field of precision engineering. We have garnered an impressive reservoir of technical expertise, building a stellar market reputation that distinguishes us as an industry leader. Our unparalleled capabilities in precision medical machining services consistently achieve incredibly tight tolerances and flawless surface finishes, a testament to why we are the top choice within the medical sector.
With four strategically positioned production bases located in the vibrant hubs of Shenzhen and Guiyang, driven by a committed workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless chain integrates research and development, production, and delivery, ensuring that we not only meet but exceed the diverse needs of our clientele with exceptional efficiency and unmatched quality. Our cutting-edge facilities are adept at handling the most intricate and challenging machining tasks, upholding our esteemed reputation for excellence and groundbreaking 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)