Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication transcends commitment-it's a fervent passion for the art and science of manufacturing excellence. Our unparalleled expertise is vividly demonstrated through the meticulous crafting of high-end precision components, and the avant-garde development and production of state-of-the-art intelligent automation equipment. Our cutting-edge solutions seamlessly integrate across a diverse array of industries, including:
- Medical and Biotech: Providing unrivaled high-precision components and innovative solutions tailored for the dynamic and ever-evolving realm of medical devices.
- Semiconductors: Driving the evolution of chip manufacturing and its associated technologies with indispensable core components that guarantee precision and dependability.
- New Energy: Playing a critical and influential role in the sustainable and efficient advancement of new energy technologies, lighting the path toward a more sustainable future.
- Automotive: Providing essential components that are at the heart of innovation within the automotive sector, particularly in the transformative journeys of intelligent and electric vehicle development.
Main Products
- We excel in creating non-standard customized components, focusing extensively on the medical, automation, semiconductor, and automotive industries, where precision engineering and superior quality are of utmost importance.
Why choose us
Core Advantages
- A Fleet of Excellence Our operations proudly feature an exceptional fleet of over 300 branded machines, skillfully expanding across a wide spectrum of equipment categories. This extensive range empowers us to precisely and efficiently fulfill the diverse machining needs of various industries.
- With an illustrious legacy of 20 years, we offer an abundance of production expertise, bolstered by substantial technical and process strengths, guaranteeing unparalleled quality and cutting-edge innovation.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
In-Coming Material Inspection
Before raw materials are accepted into our warehouse, they undergo a rigorous examination to ensure excellence. We conduct thorough chemical composition analysis and physical property testing, ensuring only the highest quality materials are used. Our unwavering commitment to quality requires that suppliers provide a Certificate of Origin and a Declaration of Conformity, officially sealed. This meticulous verification process safeguards the integrity and purity of every material, maintaining our standards of precision and excellence.
In-Process Inspection
During machining, each part is meticulously examined to ensure adherence to precise size and tolerance specifications. Our vigilant, ongoing inspection routine acts as a proactive shield against defects, effectively curtailing the risk of non-conforming goods reaching subsequent stages. This meticulous attention to detail ensures our products maintain the highest standards of precision and quality.
First Article Inspection
Our First Article Inspection (FAI) is a pivotal strategy aimed at identifying and addressing potential issues before they can impact mass production. This proactive measure is key to eliminating waste and ensuring our high-quality standards remain uncompromised. The robust and precise nature of our FAI process significantly diminishes quality risks and upholds our commitment to excellence.
Final Inspection
Before any product departs our facility, it is subjected to an exhaustive final inspection. This meticulous process scrutinizes dimensions, appearance, functionality, and specific customer requirements, ensuring only premium quality products are delivered. Our comprehensive inspection guarantees that every part that reaches our clients meets our stringent standards, reflecting our dedication to delivering exceptional products.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has dedicated itself to the art and science of high-precision basic component machining. With an unwavering commitment to innovation over the past two decades, we have delved deep into technical research, establishing ourselves as pioneers in precision engineering. We have amassed a wealth of technical expertise, earning a stellar market reputation that sets us apart as a leader in the industry.
With four strategically located production bases nestled in the bustling hubs of Shenzhen and Guiyang, and powered by a dedicated workforce of over 400 skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This chain seamlessly interconnects research and development, production, and delivery, ensuring we consistently meet and exceed the diverse needs of our clients with outstanding efficiency and unparalleled 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)
Audited Supplier 
){kind=link}