Product application
Donghui Precision Machinery is passionately committed to the meticulous manufacturing of high-end precision components that meet the most stringent standards. Additionally, we excel in the development and production of cutting-edge intelligent automation equipment, catering to a variety of esteemed industries including:
- Medical and Biotech: Providing high-precision components and innovative solutions for medical devices.
- Semiconductors: Supporting chip manufacturing and related equipment with core components.
- New Energy: Contributing to the efficient and sustainable development of new energy equipment.
- Automotive: Providing critical components to drive innovation in the automotive industry, including intelligent and electric vehicle development.
Main Products
- Our offerings include non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive sectors.
Why choose us
Core Advantages
- A fleet of over 300 branded machines, encompassing an extensive array of equipment categories, each meticulously designed to cater to the diverse machining needs across a multitude of industries.
- 20 years of unparalleled production experience, endowing us with exceptional technical prowess and process excellence.
production equipment
Inspection Equipment
Quality Ensurance
Meticulous In-coming Material Inspection
Before any raw materials are welcomed into our warehouse, they must pass a stringent gateway, undergoing both chemical composition analysis and detailed physical property testing. To uphold our commitment to excellence, suppliers are obligated to provide a Certificate of Origin for each material, in tandem with a Declaration of Conformity, proudly stamped with their official seal.
Rigorous In-Process Inspection
Throughout the machining journey, parts are subject to continuous scrutiny to ensure that their dimensions and tolerances are perfectly aligned with specified standards. This vigilant oversight is instrumental in preempting defective parts from advancing to subsequent stages, thus efficiently averting the formation of large batches of non-conforming products (NG).
Comprehensive First Article Inspection
Our First Article Inspection (FAI) stands as a cornerstone in identifying potential issues before they escalate into the production of vast volumes of defective parts, thereby strategically minimizing waste. We have meticulously crafted a robust and precise FAI process that is pivotal in reducing quality risks, guaranteeing a steady stream of high-caliber product quality.
Detailed Final Inspection
Prior to shipment, each part undergoes an exhaustive examination that encompasses dimensions, appearance, functionality, and any particular customer stipulations. This conscientious inspection ensures that every part dispatched is in full compliance with our stringent quality standards, safeguarding against the delivery of any non-conforming parts to our valued customers.
Packaging & Shipping
Company Profile
Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., a pillar of precision engineering since its inception in 2009 (originally founded in 2002), has dedicated itself to the art and science of high-precision component machining. With an impressive 20-year legacy, we have continually pushed the boundaries of technical research and innovation. We have harnessed a tremendous wealth of technical expertise that has cemented our sterling market reputation.
With four state-of-the-art production bases strategically positioned in the thriving cities of Shenzhen and Guiyang, and a robust workforce exceeding 400 dedicated employees, Donghui has masterfully crafted a seamless industry chain. From cutting-edge research and development to precision production and timely delivery, we efficiently cater to the dynamic needs of our diverse clientele, ensuring uncompromised quality at every step of the process.
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}