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 boast an impressive collection of over 300 renowned machines, meticulously arranged to encompass a sweeping range of equipment categories. This strategic assembly enables us to proficiently fulfill the diverse machining demands of multiple sectors, delivering precision and efficiency at every turn.
- With a rich legacy extending over two decades, we bring forth a treasure trove of production expertise, harmoniously blended with unrivaled technical prowess and process superiority. This fusion assures our commitment to delivering unparalleled quality and groundbreaking innovation.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Incoming Material Inspection
Before any raw materials are accepted into our warehouse, they undergo a comprehensive and stringent evaluation, including an in-depth chemical composition analysis and thorough physical property testing. Our unwavering commitment to excellence dictates that suppliers must present a Certificate of Origin for each material, along with a Declaration of Conformity, authenticated by their official stamp. This thorough verification process ensures the integrity, authenticity, and purity of all materials utilized in our manufacturing process, upholding the highest standards of quality.
In-Process Inspection
Throughout the machining process, each component is meticulously scrutinized to ensure that its dimensions and tolerances meet the precise specifications required. By adhering to a vigilant, ongoing inspection routine, we proactively intercept and prevent defective components from progressing to subsequent stages. This diligent approach significantly minimizes the risk of producing large volumes of non-conforming goods, enabling us to maintain exceptional quality control at every stage of production.
First Article Inspection
Our First Article Inspection (FAI) is a crucial proactive measure intended to identify and resolve potential issues before they escalate during mass production, thereby preventing unnecessary material waste and ensuring operational efficiency. Our rigorous and precise FAI process plays a pivotal role in mitigating quality risks, ensuring that we consistently uphold superior product standards and deliver unparalleled excellence.
Final Inspection
Prior to shipment, every product undergoes an exhaustive final inspection process, meticulously examining dimensions, appearance, functionality, and any specific customer requirements. This comprehensive and thorough inspection guarantees that each component dispatched from our facility meets our stringent standards of excellence, ensuring that only products of the highest quality reach our esteemed customers.
Packaging & Shipping
Company Profile
Since its inception in 2009, following its founding roots in 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has mastered the art and science of high-precision basic component machining. For over two decades, our unwavering commitment to innovation and technical research has positioned us as true pioneers in the realm of precision engineering. We have cultivated a wealth of technical expertise, earning an outstanding market reputation that distinguishes us as a leader in the industry.
With four strategically located production bases in the dynamic hubs of Shenzhen and Guiyang, empowered by a committed workforce of over 400 highly skilled employees, Donghui has meticulously crafted a robust and vertically integrated industry chain. This chain flawlessly unites research and development, production, and delivery, ensuring that we consistently meet and exceed the diverse needs 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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