Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not just a duty; it is an impassioned pursuit of excellence, fueled by our ardent passion for the intricate artistry and exacting science of precision manufacturing. Our unparalleled expertise stands as a beacon in the sophisticated world of high-end component fabrication, guiding the industry toward unmatched precision and innovation. We are at the forefront of developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions serve an array of industries, addressing diverse applications with unparalleled effectiveness, including:
- Medical and Biotech: Offering precisely engineered high-precision components and cutting-edge solutions for groundbreaking medical devices, consistently upholding the highest standards of quality.
- Semiconductors: Facilitating the production of chips and their associated equipment by delivering essential core components that are critical to the industry's triumph.
- New Energy: Driving the vigorous and sustainable advancement of cutting-edge energy equipment, championing eco-friendly technological innovation.
- Automotive: Supplying key components that energize innovation within the automotive industry, supporting the evolution of intelligent and electric vehicles.
Main Products
- We excel in creating non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors, ensuring extraordinary precision and premium 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. With this incredible array, we are empowered to skillfully fulfill and exceed the intricate machining needs of diverse industries with unparalleled precision, efficiency, and excellence.
- With a rich history spanning two decades, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. leverages vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, setting us apart as visionaries and pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exemplary Incoming Material Examination: Unwavering Commitment to Quality
Each raw material gracing our warehouse is subject to an exhaustive examination process, ensuring unparalleled precision and superior quality. Our meticulous analyses delve into the chemical composition and rigorously inspect the physical properties, aligning with our commitment to quality. Every supplier must accompany their materials with a Certificate of Origin and a stamped Declaration of Conformity. This guarantees only the finest materials are selected for our high-precision medical machining services. Our rigorous authentication process ensures these materials meet the pinnacle of integrity and purity, perfectly resonating with our unwavering dedication to quality.
Intensive In-Process Quality Assurance: Pioneering Precision and Perfection
Our intricate machining operations are safeguarded by meticulous scrutiny at every stage, ensuring components are not only within specifications but surpass expectations. Our inspection protocol is strategically crafted to identify and intercept potential defects at the earliest, preventing non-conforming parts from advancing further. This vigilance is crucial in minimizing the risk of substandard goods, guaranteeing superior quality at every phase, and achieving excellence throughout the entire production journey.
Strategic First Article Inspection (FAI): Laying the Foundation for Unmatched Quality
Our First Article Inspection (FAI) process is a vital strategy, pivotal for early detection and resolution of potential production challenges. This preemptive approach ensures issues are resolved before mass production. The detailed precision of our FAI process is crucial in minimizing quality risks, consistently elevating our products to the highest standards. This dedication to excellence is interwoven into every facet of the production cycle, ensuring we meet and surpass the highest quality benchmarks.
Meticulous Comprehensive Final Inspection: Ensuring Ultimate Quality Excellence
Before any product departs our facility, it is subjected to a thorough final inspection, encompassing dimensions, visual aesthetics, performance, and any customer-specific requirements. This comprehensive inspection process stands as a testament to our relentless pursuit of quality, ensuring every component dispatched aligns with our stringent standards. We are committed to delivering only the highest quality products to our esteemed customers, fortifying our 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 emerged as a bastion of expertise in high-precision basic component machining. With an unwavering dedication 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 incredibly 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 effortlessly weaves together research and development, production, and delivery, ensuring that we meet and exceed the diverse needs of our customers with outstanding efficiency and unrivaled quality. Our state-of-the-art facilities are equipped to handle the most intricate and demanding machining tasks, maintaining our 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)