Product application
Donghui Precision Machinery is a beacon of excellence dedicated to the meticulous manufacturing of high-end precision components crafted with utmost precision and care, alongside the development and production of cutting-edge intelligent automation equipment. Our expertise extends across multiple dynamic industries, including:
- Medical and Biotech,where we provide unparalleled high-precision components and pioneering solutions designed to enhance and innovate medical devices.
- Semiconductors,where we support the intricate chip manufacturing processes and related equipment with our essential and core components.
- New Energy,where we play a vital role in the efficient and sustainable advancement of new energy equipment, contributing to a greener future.
- Automotive,where our critical components drive innovation, especially in the realms of intelligent and electric vehicle development, shaping the future of mobility.
Main Products
- Our repertoire includes meticulously crafted non-standard customized components, extensively serving sectors such as medical, automation, semiconductor, and automotive industries, ensuring unparalleled quality and adaptability.
Why choose us
Core Advantages
- A fleet of over 300 branded machines, covering a wide range of equipment categories, capable of meeting various machining needs across industries. Our extensive selection ensures that we can accommodate the diverse requirements of numerous sectors, ensuring precision and reliability in every project.
- 20 years of production experience, with rich technical and process advantages. This wealth of expertise allows us to deliver exceptional quality and innovation, driving excellence in every aspect of our operations.
production equipment
Inspection Equipment
Quality Ensurance
Comprehensive In-Coming Material Inspection
Before any raw materials are accepted into our warehouse, they undergo a rigorous chemical composition analysis and a thorough assessment of physical properties. Suppliers are mandated to provide the Certificate of Origin and a Declaration of Conformity, both of which must bear their official stamp, ensuring transparency and adherence to high standards.
Meticulous In-Process Inspection
During the machining process, parts are subject to continuous, meticulous inspection to verify that dimensions and tolerances meet exact specifications. This diligent oversight prevents defective components from advancing to subsequent stages, reducing the risk of producing large quantities of non-compliant products (NG).
Proactive First Article Inspection
The First Article Inspection (FAI) is a strategic initiative that proactively identifies potential issues and discrepancies before they escalate into large-scale production of defective parts. Our FAI process is meticulously crafted to minimize quality risks, safeguard against unnecessary scrap, and ensure a consistent standard of product excellence.
Comprehensive Final Inspection
Before shipment, each part is subjected to a detailed final inspection, assessing dimensions, appearance, functional integrity, and any specific customer stipulations. This exhaustive check guarantees that only fully conforming parts reach our valued customers, maintaining our reputation for quality and reliability.
Packaging & Shipping
Company Profile
Founded in 2002 and officially established as Donghui Precision Machinery Co., Ltd. in 2009, our company has dedicated the last two decades to pioneering excellence in high-precision component machining and advancing related technical research. We have garnered an outstanding wealth of technical expertise and a stellar market reputation through years of dedication and innovation.
With four state-of-the-art production bases strategically positioned in Shenzhen and Guiyang, and an exceptional workforce of over 400 skilled employees, Donghui has masterfully developed a comprehensive industry chain. From cutting-edge research and development to production and prompt delivery, we efficiently meet diverse customer demands with unwavering 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)
){kind=link}