Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication transcends simple obligation; it is driven by a passionate fervor for the exquisite craft and meticulous science of precision manufacturing. Our unmatched expertise serves as a guiding light in the realm of high-end component fabrication, illuminating the path to meticulous precision. We are pioneering the development and production of groundbreaking intelligent automation equipment. Our cutting-edge solutions cater to a multitude of industries, effectively addressing diverse applications, including:
- Medical and Biotech: Delivering meticulously engineered high-precision components and innovative solutions for state-of-the-art medical devices, upholding the pinnacle of quality standards.
- Semiconductors: Empowering chip production and its associated equipment by supplying indispensable core components that are crucial to the industry's success.
- New Energy: Engaging in the vigorous and sustainable advancement of innovative energy equipment, furthering eco-friendly technological progress.
- Automotive: Providing vital components that fuel innovation within the automotive sector, aiding the evolution of smart and electric vehicles.
Main Products
- We specialize in non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries, ensuring unmatched precision and superior 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. Our fleet is a testament to our commitment to cutting-edge technology and innovative craftsmanship, ensuring that each project is handled with the utmost expertise and attention to detail.
- 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. This sets us apart as pioneers in the realm of precision engineering, where our dedication to excellence and advancement continually drives us to exceed industry standards.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Unparalleled Incoming Material Inspection
Every raw material that arrives at our warehouse undergoes a comprehensive and rigorous examination. Our detailed analyses encompass an assessment of the chemical composition and an intensive inspection of physical properties. We maintain an unwavering dedication to quality by mandating that all suppliers furnish a Certificate of Origin and a stamped Declaration of Conformity. This rigorous selection process ensures that only premier materials are chosen for our precision medical machining services. Our strict authentication protocol guarantees that these materials meet the highest standards of integrity and purity, perfectly reflecting our steadfast commitment to excellence.
Rigorous In-Process Quality Assurance
Within our sophisticated machining operations, each component is meticulously inspected to ensure that its dimensions and tolerances not only meet but surpass our stringent specifications. Our diligent and continuous inspection procedure is meticulously crafted to preclude potential defects at an early stage, thereby averting non-conforming parts from advancing through the production process. This vigilant methodology is crucial in mitigating the risk of substandard products, ensuring top-tier quality at every step, and upholding excellence throughout the entire production cycle.
Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) process is a strategic cornerstone in identifying and addressing potential production hurdles at an early phase. This forward-thinking approach curtails issues from proliferating during mass production. The detailed and precise nature of our FAI is vital in minimizing quality risks, ensuring our products consistently achieve the highest standards. This unwavering commitment to excellence is deeply embedded in every facet of the production cycle, ensuring that we not only meet but exceed the most stringent quality benchmarks.
Detailed Comprehensive Final Inspection
Before any product departs from our facility, it is subject to a detailed and exhaustive final inspection. This process rigorously assesses dimensions, visual appeal, performance, and any customer-specific criteria. Our comprehensive inspection procedure is a testament to our relentless dedication to quality, ensuring that every component dispatched from our facility aligns with our stringent standards. We are resolute in delivering only the highest quality products to our esteemed customers, consistently upholding 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 an unparalleled wealth of knowledge and technical expertise, earning a stellar market reputation that distinguishes us as a true leader in the industry. Our capabilities in precision medical machining services are second to none, consistently achieving the finest tight tolerances and flawless surface finishes. This makes us the preferred and trusted choice in the medical sector, where precision and reliability are paramount.
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 seamlessly. This chain beautifully weaves together every aspect-from research and development to production and swift delivery-ensuring that we not only meet but exceed the diverse needs of our esteemed customers with unparalleled efficiency and quality. Our state-of-the-art facilities are meticulously designed to handle even the most intricate and demanding machining tasks, cementing 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)