Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we transcend expectations by weaving passion with the art and meticulous science of precision manufacturing, creating a tapestry of unparalleled craftsmanship. Our unrivaled expertise acts as a beacon of innovation in high-end component fabrication, charting a course of unparalleled precision and excellence. As pioneers in the development of revolutionary intelligent automation equipment, our state-of-the-art solutions span a spectrum of industries, deftly addressing a diverse array of applications, such as:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and pioneering solutions for cutting-edge medical devices, while steadfastly maintaining the highest quality standards.
- Semiconductors: Enhancing chip production and its requisite equipment by supplying indispensable core components, which are vital to the industry's triumph.
- New Energy: Catalyzing the robust and sustainable evolution of innovative energy equipment, championing eco-friendly technological advancement.
- Automotive: Supplying essential components that drive innovation within the automotive sector, facilitating the progression of intelligent and electric vehicles.
Main Products
- Our specialization in non-standard customized components meets the exacting needs of the medical, automation, semiconductor, and automotive industries, delivering unparalleled precision and exceptional 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.
- With a rich and illustrious history spanning two decades, we expertly leverage our vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, thereby setting us apart as true pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Meticulous Incoming Material Examination
Every single raw material that enters our warehouse must undergo a comprehensive and rigorous examination process. Our thorough analyses involve a detailed evaluation of the chemical composition and a meticulous inspection of the physical properties. In our unwavering commitment to uphold the highest quality standards, we demand that every supplier provides a Certificate of Origin along with a stamped Declaration of Conformity. This meticulous process ensures that only the finest materials are selected for our precision-driven medical machining services. Our vigilant authentication process is meticulously designed to ensure these materials meet the highest standards of integrity and purity, aligning seamlessly with our steadfast commitment to quality.
Rigorous In-Process Quality Control
During our complex and precise machining operations, every component is subject to meticulous scrutiny to ensure that its dimensions and tolerances not only meet but exceed our rigorous specifications. Our diligent and ongoing inspection protocol is strategically crafted to detect any potential defects early, preventing non-conforming parts from advancing to later stages. This vigilant approach plays a vital role in minimizing the risk of substandard goods, ensuring unparalleled quality at each production phase, and maintaining our commitment to excellence throughout the entire process.
Foundational First Article Inspection (FAI)
Our First Article Inspection (FAI) process acts as a crucial foundational strategy in identifying and addressing potential production challenges at an early stage. This proactive approach effectively prevents issues from escalating during mass production. The comprehensive and precise nature of our FAI process is instrumental in minimizing quality risks, ensuring that our products consistently rise to the pinnacle of industry standards. This unwavering dedication to excellence permeates every production cycle aspect, guaranteeing that we not only meet but exceed the highest quality benchmarks.
Thorough Comprehensive Final Inspection
Before any product departs from our facility, it undergoes a detailed and meticulous final inspection. This process rigorously evaluates dimensions, aesthetics, performance, and adheres to any customer-specific requirements. Our comprehensive inspection process is a testament to our relentless pursuit of quality, ensuring each part leaving our facility meets our exacting standards. We are resolute in delivering only top-tier quality products to our esteemed customers, upholding our reputation for unmatched excellence and reliability.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has firmly established itself as a beacon of expertise and innovation in the realm of high-precision component machining. Through an unwavering commitment to technological advancement over the years, we have entrenched ourselves as trailblazers in the field of precision engineering, delivering unparalleled quality and performance. We have harnessed an extraordinary level of technical expertise, cultivating a stellar reputation that distinguishes us as a leader in the precision machining industry. Our unmatched capabilities in medical machining services are evident in our consistent delivery of incredibly tight tolerances and flawless surface finishes, establishing us as the go-to choice in the medical sector.
With our four strategically located production bases, nestled in the bustling technological hubs of Shenzhen and Guiyang, and fueled by a dedicated team of over 400 highly skilled professionals, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamlessly blends research, development, production, and delivery, ensuring that we not only meet but surpass the diverse needs of our esteemed clients with exceptional efficiency and unmatched quality. Our cutting-edge facilities are equipped to tackle even the most intricate and challenging machining tasks, reinforcing 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)