Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not just committed; we are passionate about the art of manufacturing. Our expertise shines in crafting high-end precision components, along with pioneering the development and production of cutting-edge intelligent automation equipment. Our solutions span a broad spectrum of industries, including:
- Medical and Biotech: Delivering unmatched high-precision components and groundbreaking solutions for the ever-evolving world of medical devices.
- Semiconductors: Empowering chip manufacturing and its related equipment with essential core components, ensuring precision and reliability.
- New Energy: Playing a pivotal role in the efficient, sustainable advancement of new energy equipment, paving the way for a greener future.
- Automotive: Supplying indispensable components that fuel innovation in the automotive sector, particularly in intelligent and electric vehicle evolution.
Main Products
- We specialize in non-standard customized components, catering extensively to the medical, automation, semiconductor, and automotive industries, where precision and quality are paramount.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly feature an extraordinary collection of over 300 premium branded machines, guaranteeing our capacity to encompass a comprehensive range of equipment categories. This remarkable assortment empowers us to skillfully fulfill the diverse machining requirements of numerous industries with unparalleled precision and unmatched efficiency.
- With an illustrious legacy spanning two decades, we possess a vast reservoir of production experience. This, combined with our profound technical and process advantages, ensures the highest standards of quality and groundbreaking innovation.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Incoming Material Inspection
Before any raw materials are welcomed into our warehouse, they are subjected to an exhaustive chemical composition analysis and physical property testing. Our unwavering commitment to quality dictates that suppliers accompany each material shipment with a Certificate of Origin and a Declaration of Conformity, each adorned with their official stamp. This scrupulous verification process stands as a sentry, safeguarding the integrity and purity of all materials we incorporate into our production.
In-Process Inspection
Meticulous examination of every part during the machining process ensures adherence to precise specifications for size and tolerances. By maintaining a vigilant, seamless inspection regimen, we diligently avert defective parts from progressing to subsequent stages, significantly mitigating the risk of producing non-conforming goods in large batches.
First Article Inspection (FAI)
Our First Article Inspection (FAI) process acts as a strategic initiative, meticulously designed to identify and address potential issues before they escalate into the realm of mass production, thereby curtailing unnecessary waste. This robust and precise FAI process is a cornerstone in our efforts to reduce quality risks, thereby ensuring we uphold superior product standards with unwavering consistency.
Final Inspection
Before any product departs from our facility, it undergoes an exhaustive final inspection. This comprehensive evaluation meticulously examines dimensions, appearance, functionality, and any bespoke customer specifications. Our thorough inspection ensures that every part dispatched meets our exacting standards, allowing only the finest quality products to reach our esteemed customers.
Packaging & Shipping
Company Profile
Established in 2009, with its foundational roots dating back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has been a trailblazer in the realm of high-precision basic component machining. For over two decades, our relentless pursuit of innovation has fueled our deep dive into technical research, positioning us as pioneers in the world of precision engineering. We have garnered an extensive reservoir of technical expertise, culminating in a remarkable market reputation that distinguishes us as an industry leader.
With four strategically positioned production bases located in the vibrant centers of Shenzhen and Guiyang, empowered by a dedicated team of over 400 highly skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This seamless integration of research, development, production, and delivery ensures that we not only meet but consistently exceed the diverse expectations of our customers with unparalleled efficiency and superior quality.
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)
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