Product application
Donghui Precision Machinery: A Pioneer in Manufacturing Excellence High-End Precision Components And the development and production of cutting-edge intelligent automation equipment, serving a diverse range of industries, including:
- Medical and Biotech: Delivering unparalleled precision components and groundbreaking solutions for medical devices, enhancing healthcare innovation.
- Semiconductors: Facilitating the advancement of chip manufacturing with state-of-the-art core components, driving the future of electronics.
- New Energy: Paving the way for efficient and sustainable advancements in new energy equipment.
- Automotive: Offering essential components that fuel innovation in the automotive sector, propelling the development of intelligent and electric vehicles forward.
Main Products
- Non-Standard Customized Components: Extensively catering to the needs of the medical, automation, semiconductor, and automotive industries, delivering tailored solutions for complex challenges.
Why choose us
Core Advantages
- A fleet of over 300 highly-reliable branded state-of-the-art machines, covering an impressively diverse array of equipment categories, each meticulously engineered to meet and exceed the diverse machining needs that span across various industries with unparalleled precision.
- With an impressive legacy of 20 years in production experience, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands unrivaled with its profound technical and process advantages.
Cutting-edge production equipment
Advanced Inspection Equipment
Quality Ensurance
In-coming Material Inspection
To guarantee only the finest materials are utilized, we mandate that all raw materials undergo a rigorous chemical composition analysis and thorough physical property testing prior to acceptance into our warehouse. Our trusted suppliers are obligated to furnish a Certificate of Origin for each material, accompanied by a Declaration of Conformity, duly stamped with their official seal, ensuring compliance and authenticity.
In-Process Inspection
During the machining process, our parts are subject to relentless inspections to ensure that all dimensions and tolerances align perfectly with the stringent specifications. This diligent, proactive strategy minimizes the risk of any defective parts advancing to subsequent stages, thereby averting the production of large batches of non-conforming (NG) products.
First Article Inspection
Our First Article Inspection (FAI) is a strategic, proactive initiative aimed at pinpointing potential issues before they escalate into large-scale production errors, thus preventing unnecessary waste. We've instituted a meticulous and precise FAI process that is instrumental in reducing quality risks and guaranteeing a consistent standard of excellence in our product offerings.
Final Inspection
Prior to shipment, each part is subjected to an exhaustive final inspection that encompasses all critical aspects: dimensions, appearance, functionality, and any bespoke customer specifications. This rigorous process ensures that only parts that meet our uncompromising standards and customer expectations are dispatched, thereby eliminating the possibility of sending non-conforming products to our valued customers.
Packaging & Shipping
Company Profile
Donghui Precision Machinery Co., Ltd., established in 2009 and originally founded in 2002, has dedicated the last two decades to mastering the art of high-precision basic component machining and pioneering related technical research. Our company boasts a vast reservoir of technical expertise and a stellar market reputation.
Strategically positioned with four state-of-the-art production bases in the thriving areas of Shenzhen and Guiyang, complemented by a robust team of over 400 highly skilled employees, Donghui has meticulously crafted a comprehensive industry chain that seamlessly integrates research, development, production, and delivery, ensuring the utmost efficiency and superior quality to meet the varied demands of our esteemed clientele.
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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