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. With unparalleled expertise, we illuminate the journey toward meticulous precision in the realm of high-end component fabrication. We are at the forefront of developing and producing groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly integrate into numerous industries, addressing a broad spectrum of applications, such as:
- 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 pivotal to the industry's triumph.
- New Energy: Actively participating in the sustainable and vigorous advancement of innovative energy equipment, propelling eco-friendly technological progress.
- Automotive: Providing essential components that drive innovation within the automotive sector, supporting the evolution of smart and electric vehicles.
Main Products
- We specialize in non-standard customized components, serving the medical, automation, semiconductor, and automotive industries with 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.
- 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
Exemplary Incoming Material Examination
Every piece of raw material entering our facility undergoes a comprehensive and thorough quality check. Our exhaustive scrutiny includes a detailed analysis of chemical composition and a meticulous inspection of physical properties. Our steadfast dedication to quality demands that each supplier provide a Certificate of Origin and a stamped Declaration of Conformity. This rigorous protocol ensures we select only the finest materials for our high-precision medical machining services. Through our stringent authentication process, we guarantee that materials meet the highest standards of integrity and purity, reflecting our unwavering commitment to exceptional quality.
Intensive In-Process Quality Assurance
Throughout our sophisticated and precise machining operations, each component undergoes meticulous evaluation to ensure that dimensions and tolerances not only meet but exceed even our most exacting specifications. Our vigilant, continuous inspection protocol is strategically crafted to detect potential defects at the earliest possible stage, effectively preventing non-conforming components from advancing further in the production process. This proactive vigilance is crucial in minimizing the risk of subpar products, ensuring superior quality at every stage of production, and maintaining unwavering excellence throughout the entire manufacturing process.
Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) process stands as a cornerstone strategy vital for early identification and resolution of potential production challenges. By addressing these issues at the outset, we prevent them from escalating during mass production. The precision and thoroughness of our FAI process are indispensable in minimizing quality risks, ensuring our products consistently achieve and surpass peak standards. This unwavering commitment to excellence infuses every phase of the production cycle, guaranteeing we consistently meet and exceed the most stringent quality benchmarks.
Meticulous Comprehensive Final Inspection
Before products depart from our facility, they undergo a meticulous and thorough final inspection process. This rigorous evaluation covers dimensions, visual appearance, performance, and any specific customer requirements. Our comprehensive inspection protocol stands as a testament to our relentless commitment to quality, ensuring that every part that leaves our facility meets our exacting standards. We remain unwavering in our dedication to deliver only the highest quality products to our valued customers, continually 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. Our company has accumulated an extensive reservoir of technical expertise, earning an exceptional market reputation that distinctly positions us at the pinnacle of the industry. Our unmatched capabilities in precision medical machining services consistently achieve remarkably tight tolerances and flawless surface finishes, establishing us as the favored partner in the medical sector.
With four strategically located production bases situated in the vibrant centers of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 skilled employees, Donghui has intricately crafted a robust and vertically integrated industry chain. This seamless chain masterfully blends research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse requirements of our clients with exceptional efficiency and unparalleled quality. Our cutting-edge facilities are designed to tackle the most intricate and demanding machining projects, sustaining our reputation for excellence and revolutionary 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)
Audited Supplier 
){kind=link}