Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment is not merely a task but a passionate pursuit of the artful and precise craft of precision manufacturing. We are driven by an unwavering zeal for excellence and innovation in our field. Our unparalleled proficiency shines as a beacon in the sophisticated world of high-end component fabrication, where every detail matters. We illuminate the journey towards achieving meticulous precision with our expertise. We are at the forefront of innovation, developing and producing revolutionary intelligent automation equipment. Our state-of-the-art solutions cater to a vast array of industries, addressing a diverse range of applications with excellence, including:
- Medical and Biotech: We deliver meticulously crafted high-precision components and cutting-edge solutions for modern medical devices, consistently meeting the highest quality standards.
- Semiconductors: We enhance chip production and the equipment that supports it by providing key core components vital for the industry's success and advancement.
- New Energy: We are actively participating in the robust and sustainable development of pioneering energy equipment, advancing green technology and eco-friendly innovations.
- Automotive: We supply essential components that drive innovation within the automotive industry, supporting the transformation towards smart and electric vehicles.
Main Products
- We excel in creating non-standard customized components, prominently serving the medical, automation, semiconductor, and automotive sectors, guaranteeing unmatched precision and top-tier 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 history spanning two decades, we leverage vast production experience combined with substantial technical and process prowess. This guarantees exceptional quality and forward-thinking innovation, setting us apart as pioneers in the realm of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Extraordinary Incoming Material Evaluation
Each raw material that arrives at our facility undergoes an exhaustive and rigorous examination process, ensuring unparalleled quality. This meticulous scrutiny involves a comprehensive assessment of the chemical composition, along with a thorough inspection of the physical properties of the materials. Our unwavering dedication to quality demands that every supplier provides a Certificate of Origin alongside a stamped Declaration of Conformity. This meticulous vetting process guarantees that only the finest materials are utilized in our state-of-the-art medical CNC machining services. Our strict authentication standards ensure that these materials adhere to the highest benchmarks of integrity and purity, perfectly reflecting our steadfast commitment to superior quality.
Robust In-Process Quality Assurance
Amidst our sophisticated and precise machining operations, every component is meticulously scrutinized to ensure that its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and continuous inspection protocol is expertly designed to identify and intercept potential defects at an early stage, thereby preventing non-conforming parts from advancing to further stages in the process. This vigilant approach is essential in mitigating the risk of substandard products, ensuring superior quality at every phase of production, and sustaining excellence throughout the entire lifecycle.
Comprehensive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a pivotal strategy integral to identifying and addressing potential production challenges at an early stage. By adopting this proactive methodology, issues are effectively prevented from proliferating into large-scale production. The thorough and precise nature of our FAI process is crucial in minimizing quality risks, thereby ensuring our products consistently achieve the highest standards. This unwavering commitment to excellence is woven into every facet of the production process, guaranteeing that we not only meet but exceed the most rigorous quality benchmarks.
Thorough and Comprehensive Final Inspection
Before any product is dispatched from our facility, it undergoes a rigorous and comprehensive final inspection. This meticulous process thoroughly evaluates dimensions, visual appearance, performance, and any customer-specific requirements. Our exhaustive inspection protocol stands as a testament to our relentless pursuit of quality, guaranteeing that each component leaving our facility adheres to our stringent standards. We are resolute in our promise to deliver only the finest quality products to our esteemed customers, thereby upholding our revered reputation for excellence and dependability.
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 in the realm of high-precision basic component machining. Boasting an unwavering commitment to innovation that spans over two remarkable decades, we have delved into technical research with a passion that positions us as pioneers in the world of precision engineering. We have cultivated a treasure trove of technical expertise, earning a sterling market reputation that distinctly sets us apart as an industry leader. Our unmatched capabilities in precision medical machining services consistently achieve incredibly tight tolerances and flawless surface finishes, making us the preferred partner in the medical sector.
With four strategically positioned production bases in the vibrant epicenters of Shenzhen and Guiyang, powered by a dedicated workforce of over 400 skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This sophisticated chain seamlessly weaves together research and development, production, and delivery, ensuring that we not only meet but consistently exceed the diverse needs of our customers with outstanding efficiency and unparalleled quality. Our state-of-the-art facilities are deftly equipped to handle the most intricate and demanding machining tasks, upholding 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)