Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication goes beyond mere obligation; it is fueled by an ardent passion for the exquisite artistry and precise science of precision manufacturing. Our unparalleled expertise shines brightly in the domain of high-end component fabrication, casting a brilliant light on the pathway to meticulous precision and superior craftsmanship. We are at the forefront of developing and producing trailblazing intelligent automation equipment. Our state-of-the-art solutions serve a wide array of industries, adeptly addressing a diverse range of applications, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and pioneering solutions for cutting-edge medical devices, consistently upholding the highest quality standards.
- Semiconductors: Propelling chip production and its related equipment by providing indispensable core components that are vital to the industry's triumph.
- New Energy: Engaging in the dynamic and sustainable evolution of innovative energy equipment, advancing eco-friendly technological progress.
- Automotive: Supplying essential components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We are experts in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and superior quality at every turn.
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 unmatched capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency, ensuring that every part we produce meets the highest standards of excellence.
- 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 commitment to excellence drives us to continuously evolve and adapt to the ever-changing demands of the market.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination
Every piece of raw material that finds its way into our warehouse is meticulously scrutinized through a rigorous and comprehensive examination process. Our analysis is detailed and thorough, focusing on chemical composition and an in-depth inspection of physical attributes. We are unwavering in our dedication to maintaining the highest quality standards, insisting that every supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity. This diligence guarantees that only the supreme quality materials are chosen for our high-precision machining services in the medical sector. Our stringent authentication process ensures these materials adhere to the paramount standards of integrity and purity, reinforcing our persistent dedication to quality excellence.
Intensive 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 surpass our rigorous standards. Our diligent and continuous inspection process is tactically designed to catch potential defects at the earliest stage, thereby preventing non-conforming parts from advancing through the production process. This vigilant approach is a cornerstone in minimizing the risk of substandard goods, ensuring superior quality at every production phase, and sustaining excellence throughout the entire workflow.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a foundational strategy that plays a crucial role in identifying and mitigating potential production challenges early on. By being proactive, we prevent any issues from escalating into full-scale production problems. The detailed and precise nature of our FAI process is vital in minimizing quality risks, ensuring our products consistently reach the apex of quality standards. This unwavering dedication to excellence is embedded in every part of the production cycle, ensuring that we not only meet but exceed the highest quality benchmarks consistently.
Meticulous Comprehensive Final Inspection
Before any product exits our facility, it undergoes a comprehensive and meticulous final inspection that 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 every part released from our facility meets our exacting standards of excellence. We are unwavering in our resolve to deliver only the highest quality products to our esteemed customers, upholding our reputation for excellence and reliability at every turn.
Packaging & Shipping
Company Profile
Established on the bedrock of precision engineering in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. traces its origins back to 2002. Over the past two decades, we have blossomed into a beacon of excellence in high-precision component machining. Our relentless pursuit of innovation has propelled us to the forefront of technical research, making us trailblazers in the realm of precision engineering. We have garnered an impressive reservoir of technical expertise, earning an enviable reputation in the market. Our prowess in precision medical machining services is unparalleled; we consistently deliver parts with remarkably tight tolerances and flawless surface finishes. This reputation cements our status as the go-to choice for the medical industry.
With four strategically positioned production bases in the vibrant cities of Shenzhen and Guiyang, supported by a talented force of over 400 skilled professionals, Donghui has meticulously developed a comprehensive and vertically integrated industrial chain. This chain seamlessly combines research, development, production, and delivery, enabling us to satisfy the diverse demands of our clientele with remarkable efficiency and unparalleled quality. Our cutting-edge facilities are adept at managing the most complex and challenging machining projects, upholding our esteemed 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)