Product application
At the core of Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., lies an unwavering commitment to the meticulous crafting of high-end precision components and spearheading the innovation and production of cutting-edge intelligent automation equipment, seamlessly catering to a diverse array of industries, including:
- Medical and Biotech: We are at the forefront, offering high-precision components and pioneering solutions that empower the medical device sector.
- Semiconductors: Playing a pivotal role in the semiconductor realm by providing indispensable core components for chip manufacturing and its associated equipment.
- New Energy: Fueling the momentum of efficient and sustainable growth in the burgeoning new energy sector through our contributions.
- Automotive: Delivering pivotal components that are the backbone of innovation within the automotive industry, spanning intelligent and electric vehicle advancements.
Main Products
- Our expertise shines through in non-standard customized components, which find widespread application across industries such as medical, automation, semiconductor, and automotive, driving progress and excellence.
Why choose us
Core Advantages
- An impressive fleet of over 300 renowned, top-tier branded state-of-the-art machines, encompassing an expansive array of equipment categories. This remarkable assortment is adept at fulfilling diverse machining requirements across multiple industries.
- With a rich tapestry of 20 years in production experience, we boast unparalleled technical and process advantages, setting industry standards.
Cutting-edge production equipment
Precision Inspection Equipment
Quality Ensurance
Incoming Material Inspection
To maintain the highest quality standards, all raw materials undergo rigorous chemical composition analysis and comprehensive physical property testing before acceptance into the warehouse. Additionally, suppliers must provide a verified Certificate of Origin and a Declaration of Conformity, complete with their official seal, to confirm the authenticity and quality of the materials.
In-Process Quality Inspection
During machining, we conduct continuous and meticulous inspections to guarantee that each part's dimensions and tolerances are perfectly aligned with precise specifications. This thorough approach not only ensures superior quality but also effectively prevents any defective parts from advancing to subsequent production stages, thereby eliminating the risk of large batches of non-conforming products.
First Article Inspection (FAI)
Our First Article Inspection is a strategic and preventive measure aimed at identifying and addressing potential issues before they escalate into large volumes of defective parts, thereby reducing unnecessary waste. Our robust and precise FAI process is integral to alleviating quality risks and consistently elevating product quality standards.
Final Product Inspection
Before shipment, every part is subjected to an exhaustive inspection that includes a detailed check of dimensions, visual appearance, and functional performance, along with any specific customer requirements. This comprehensive final inspection guarantees that only parts that meet our stringent quality criteria reach our customers, ensuring absolute satisfaction and compliance.
Packaging & Shipping
Company Profile
Since its inception as Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. in 2009, and with roots tracing back to 2002, this company has steadfastly dedicated itself to the art and science of high-precision basic component machining and cutting-edge technical research, establishing a commanding presence over the past two decades. We have cultivated an unparalleled reservoir of technical expertise and earned a sterling market reputation.
With four strategically positioned production bases in the bustling hubs of Shenzhen and Guiyang, along with a dynamic team of over 400 dedicated professionals, Donghui has masterfully woven together a comprehensive industry chain that seamlessly integrates research, development, production, and delivery. This enables us to meet a diverse array of customer needs with efficiency and quality assurance.
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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