Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication transcends mere obligation; it is an ardent quest for the exquisite artistry and meticulous science that defines precision manufacturing. Our unwavering passion for flawlessness elevates each component to the pinnacle of craftsmanship and excellence, establishing a new benchmark for the industry. Our unmatched expertise illuminates the field of high-end component fabrication, leading the charge toward unparalleled precision and extraordinary brilliance in every product we deliver. At the cutting edge of innovation, our specialty lies in crafting groundbreaking intelligent automation equipment. Our state-of-the-art solutions adeptly cater to a multitude of industries, precisely addressing diverse application needs, including:
- Medical and Biotech: Revolutionizing Healthcare with Precision: Delivering meticulously crafted, high-precision components and pioneering solutions for state-of-the-art medical devices, consistently maintaining the elite quality standards that define our brand.
- Semiconductors: Driving Technological Breakthroughs: Bolstering the semiconductor industry with essential core components vital for chip production and related equipment, ensuring seamless operations and fostering groundbreaking innovation.
- New Energy: Pioneering the Path to Sustainable Innovation: Actively advancing the sustainable development of cutting-edge energy equipment, propelling eco-friendly technological advancements.
- Automotive: Energizing the Future of Mobility: Supplying vital components that drive innovation in the automotive sector, playing a pivotal role in the evolution of smart and electric vehicles.
Main Products: Expertise in Customization
- We excel in crafting bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unrivaled precision and superior quality.
Why choose us
https://donghuiprecision.en.made-in-china.com/contact-info.html
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 expansive capability empowers us to skillfully fulfill the intricate machining needs of diverse industries with unparalleled precision and efficiency. Our state-of-the-art machinery ensures that we deliver the highest standards in every project we undertake, making us a trusted leader in the field.
- 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. Each piece we produce is a testament to our dedication to crafting perfection and pushing the boundaries of what's possible in precision manufacturing.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Incoming Material Assessment
Every raw material that enters our prestigious facility is subjected to an all-encompassing, rigorous evaluation process designed to meet our elite quality standards. Our meticulous assessments delve into the chemical composition and include a thorough inspection of physical properties. Upholding our unwavering commitment to excellence, we mandate that suppliers provide a Certificate of Origin paired with a duly verified Declaration of Conformity. This ensures that only materials of the highest integrity and purity are selected for our precision-focused medical machining. This exhaustive protocol harmonizes impeccably with our pledge to deliver unrivaled quality, reflecting our steadfast promise of perfection.
Exhaustive In-Process Quality Control
During our sophisticated machining operations, every component is subjected to minute scrutiny to ensure that dimensions and tolerances not only meet but exceed our stringent specifications. Our thorough and ongoing inspection protocols efficiently identify potential defects at an early stage, effectively preempting non-conforming parts from progressing further. This vigilant approach is crucial in mitigating the risk of inferior goods, guaranteeing superior quality at every juncture and maintaining excellence throughout the process. It exemplifies our unwavering dedication to exceptional quality standards.
Proactive and Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) is a pivotal strategic initiative fundamental to the early detection and resolution of potential production issues. This proactive approach ensures that challenges are swiftly addressed before they can escalate into significant production concerns. The comprehensive precision of our FAI minimizes quality risks, ensuring our products consistently meet and exceed top-tier industry standards. This commitment to excellence permeates the entire production cycle, ensuring we continuously surpass even the most rigorous quality criteria, thereby reinforcing our reputation for delivering superior quality.
Comprehensive and Rigorous Final Inspection
Prior to departing our esteemed facility, each product is subjected to a comprehensive and rigorous final inspection. This meticulous process meticulously examines dimensions, appearance, performance, and any customer-specific requirements. Our exhaustive inspections epitomize our relentless pursuit of quality, guaranteeing that every dispatched part adheres impeccably to our exacting standards. We remain unwavering in our mission to deliver only the highest-caliber products to our valued customers, thereby upholding our sterling reputation for excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Established in 2009, yet tracing our roots back to 2002, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has blossomed into a luminary in the realm of high-precision component machining. For over two decades, our unwavering commitment to pioneering innovation has propelled us to the forefront of technical research, securing our status as trailblazers and visionaries in the precision engineering landscape. We have ascended to an extraordinary echelon of technical expertise, reinforcing a revered market reputation and marking us as the indisputable leaders in our field. Our unparalleled proficiency in precision medical machining ensures the realization of exceedingly tight tolerances and immaculate surface finishes, solidifying our status as the quintessential partner for the medical industry.
With four strategically situated production bases anchored in the vibrant hubs of Shenzhen and Guiyang, we are powered by an elite team comprising over 400 exceptionally skilled professionals. Donghui has ingeniously constructed a comprehensive and vertically integrated industry chain. This seamlessly interlaces research and development, production, and delivery, empowering us to not only meet but consistently exceed our customers' diverse expectations with remarkable efficiency and unmatched quality. Our state-of-the-art facilities are meticulously engineered to tackle the most intricate and demanding machining challenges, preserving our distinguished reputation for excellence and innovative 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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