Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our devotion goes beyond the call of duty; it is ignited by an ardent zeal for the beautiful artistry and the meticulous science surrounding precision manufacturing. Our profound expertise shines as a beacon of precision, illuminating the sophisticated realm of high-end component fabrication with its radiant glow. We stand at the cutting edge of innovation, pioneering the creation and production of groundbreaking intelligent automation equipment. Our revolutionary solutions cater to a wide array of industries, encapsulating diverse applications, such as:
- Medical and Biotech: Delivering meticulously engineered high-precision components and groundbreaking solutions for state-of-the-art medical devices, upholding the utmost quality standards.
- Semiconductors: Enhancing chip manufacturing and its associated equipment by providing indispensable core components, vital to the industry's advancement.
- New Energy: Playing a pivotal role in the dynamic, sustainable progression of cutting-edge energy equipment, championing eco-friendly innovations.
- Automotive: Supplying crucial components that fuel innovation within the automotive industry, bolstering the evolution of intelligent and electric vehicles.
Main Products
- We provide expertly crafted non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched precision and exceptional quality.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary and diverse assortment of over 300 renowned machines, enabling us to masterfully address and cater to a comprehensive spectrum of equipment categories. This impressive capability empowers us to skillfully and efficiently fulfill the intricate machining needs of diverse industries with unparalleled precision and unmatched efficiency.
- With a rich history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess, ensuring exceptional quality and pioneering innovation at the forefront of industry standards.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Precise and Methodical Incoming Material Assessment
Our rigorous process begins as each batch of raw material enters our warehouse. Not merely assessed, but it is subject to an intensive and comprehensive examination. We conduct meticulous analyses of the chemical composition, coupled with an in-depth inspection of the physical attributes. Our steadfast commitment to exceptional quality necessitates that every supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity. This diligence ensures that only the finest materials are selected for our high-precision medical machining services, maintaining the highest standards of integrity and purity. Our stringent verification process guarantees these materials meet our unwavering quality commitment.
Stringent In-Process Quality Assurance
During our intricate machining process, every piece is subject to vigilant scrutiny, ensuring dimensions and tolerances surpass our demanding standards. Our continuous and meticulous inspection protocol aims to preclude defects, halting non-conforming components from advancing to further stages. This diligent vigilance is pivotal in reducing the chance of substandard production, safeguarding superior quality at every production phase, and guaranteeing excellence throughout the entire process.
Preemptive First Article Inspection (FAI)
Our First Article Inspection (FAI) serves as a cornerstone strategy, crucial for early detection and resolution of potential production challenges. This proactive methodology averts issues from escalating into full-scale production. The exhaustive and precise nature of our FAI process is fundamental in mitigating quality risks, ensuring our products consistently achieve the apex of standards. Our unwavering dedication to quality shines through every production cycle aspect, solidifying our commitment to meeting and exceeding the highest quality standards.
Comprehensive and Detailed Final Inspection
Before any product leaves our facility, it undergoes an exhaustive final inspection, which rigorously examines dimensions, visual integrity, and performance, including any specific customer requirements. Our comprehensive inspection is a testament to our relentless pursuit of quality, ensuring each component dispatched from our facility adheres to our rigorous standards. We are committed to delivering only the highest quality products to our valued customers, maintaining our esteemed reputation for 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 dedicated itself to the art and science of high-precision basic component machining. With an unwavering commitment to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry. Our capabilities in precision medical machining services are unmatched, consistently achieving tight tolerances and impeccable 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 crafted a robust and vertically integrated industry chain. This chain seamlessly weaves together 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 state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our reputation for excellence and 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)