Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our commitment goes far beyond obligation; it is an ardent exploration of the intricate artistry and precise science that form the essence of precision manufacturing. With a relentless dedication to perfection, we elevate every component to the zenith of craftsmanship, setting the standard for excellence. Our exceptional expertise illuminates the field of high-end component fabrication, paving the way for unparalleled precision and extraordinary standards of excellence. Leading the way in innovation, we excel in designing revolutionary intelligent automation equipment. Our cutting-edge solutions adeptly serve numerous industries, meticulously catering to diverse application requirements, including:
- Medical and Biotech: Revolutionizing Healthcare with Precision: Delivering meticulously engineered, high-precision components and innovative solutions for groundbreaking medical devices, always maintaining the premium quality standards that our brand is known for.
- Semiconductors: Driving Technological Breakthroughs: Supplying the semiconductor industry with vital core components essential for chip production and related equipment, ensuring smooth operations while fostering unmatched innovation.
- New Energy: Pioneering the Path to Sustainable Innovation: Actively contributing to the sustainable advancement of innovative energy equipment, driving eco-friendly technological progress and breakthroughs.
- Automotive: Energizing the Future of Mobility: Supplying key components fueling innovation in the automotive sector, significantly contributing to the advancement of smart and electric vehicles.
Main Products: Expertise in Customization
- We specialize in crafting custom, non-standard components, extensively serving the medical, automation, semiconductor, and automotive industries with unmatched precision and superior quality.
Why choose us
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Core Advantages
- A Fleet of Excellence Our operations proudly showcase an extraordinary assortment of over 300 renowned machines, enabling us to masterfully address a comprehensive spectrum of equipment categories. This capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency. Our cutting-edge fleet is the backbone of our success, offering unmatched versatility and adaptability to all your high-precision requirements.
- With a legacy of excellence that spans over two decades, we harness our vast production expertise combined with outstanding technical prowess and process knowledge. Our unwavering commitment ensures not only superior quality but also innovative foresight, establishing us as pioneers in the field of precision engineering. We are devoted to pushing the boundaries of what is possible, consistently delivering innovations that elevate industry standards and redefine expectations.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Incoming Material Assessment
Every single raw material that enters our esteemed facility is not just evaluated but is subjected to an exhaustive, rigorous assessment to meet the highest echelon of our quality benchmarks. Our evaluations consist of a thorough chemical composition analysis alongside an intricate examination of physical properties. To uphold our unwavering commitment to excellence, we mandate that our suppliers furnish a Certificate of Origin along with a formally stamped Declaration of Conformity. This meticulous process ensures that only materials of outstanding integrity and purity are selected for our precision-centric medical machining. This relentless protocol flawlessly aligns with our dedication to delivering unparalleled quality, reaffirming our promise of nothing less than perfection.
Precise In-Process Quality Control
Within our cutting-edge machining operations, each component is subjected to meticulous scrutiny, ensuring that dimensions and tolerances not only meet but exceed our stringent specifications. Our diligent, continuous inspection procedures adeptly identify potential defects at an early stage, effectively preventing any non-conforming parts from proceeding further. This vigilant approach is crucial in substantially reducing the risk of substandard goods, ensuring superior quality at every phase and maintaining an unwavering standard of excellence throughout the entirety of the process, showcasing our steadfast dedication to quality.
Strategic and Forward-Thinking First Article Inspection (FAI)
Our First Article Inspection (FAI) is a strategic cornerstone, pivotal for the early detection and resolution of potential production challenges. This anticipatory methodology ensures that issues are addressed with efficiency before they escalate into major production concerns. The comprehensive precision of our FAI significantly mitigates quality risks, ensuring that our products consistently meet and surpass top industry standards. This unwavering commitment to excellence permeates the entire production cycle, ensuring that we consistently exceed even the most rigorous quality benchmarks, thereby solidifying our reputation for delivering superior quality.
Comprehensive and Rigorous Final Inspection
Before any product exits our prestigious facility, it is subjected to an exhaustive and rigorous final inspection. This meticulous process evaluates dimensions, appearance, performance, and specific customer requirements. Our thorough inspections encapsulate our relentless dedication to quality, ensuring that every part dispatched adheres strictly to our exacting standards. We remain steadfast in our mission to deliver only the highest-caliber products to our esteemed customers, thereby maintaining our impeccable reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established in 2009, with roots stretching back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has flourished into a luminary in the realm of high-precision component machining. For over two decades, our ceaseless quest for pioneering innovations has elevated us to the pinnacle of technical research, cementing our status as pioneers in the precision engineering domain. We have achieved an extraordinary echelon of technical mastery that underpins a distinguished market position, heralding us as indisputable leaders in the field. Our unrivaled expertise in precision medical machining guarantees the attainment of impressively tight tolerances and impeccable surface finishes, solidifying our role as the foremost ally in the medical industry.
With four strategically positioned production bases situated in the vibrant hubs of Shenzhen and Guiyang, supported by a premier team of over 400 exceptionally talented professionals, Donghui has expertly crafted an all-encompassing and vertically integrated industry chain. This seamlessly intertwines research and development, production, and delivery, enabling us to not only meet but consistently exceed our customers' diverse needs with unmatched efficiency and unparalleled quality. Our state-of-the-art facilities are meticulously designed to tackle the most intricate and challenging machining tasks, maintaining our esteemed reputation for excellence and forward-thinking leadership.
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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