Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we transcend the ordinary. We are ardently dedicated to the majestic fusion of exquisite artistry and precise scientific methodology that defines the pinnacle of precision manufacturing. Our commitment is nothing short of total, as we elevate each and every component to the zenith of craftsmanship and excellence. Our unmatched expertise radiates brilliance in the realm of high-end component fabrication. Here, we carve a pathway to unparalleled precision and extraordinary excellence, setting the standard for the industry. At the forefront of innovation, we specialize in creating revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly serve a broad array of industries, consistently meeting diverse application needs with precision, including:
- Medical and Biotech: Transforming Healthcare with Unmatched PrecisionWe provide meticulously crafted, high-precision components and pioneering solutions for groundbreaking medical devices. Our commitment to premium quality standards is unwavering, synonymous with the esteem of our brand.
- Semiconductors: Spearheading Technological BreakthroughsWe bolster the semiconductor industry by providing essential core components critical for chip production and related equipment, ensuring smooth operations and fueling innovation.
- New Energy: Leading the Charge Towards Sustainable InnovationWe are key players in the ongoing advancement of sustainable energy equipment, driving eco-friendly technological innovations that shape the future.
- Automotive: Propelling the Future of MobilityWe deliver vital components that are at the heart of innovation in the automotive sector, significantly contributing to the evolution of smart and electric vehicles.
Main Products: Mastery in Tailored Customization
- Our expertise lies in crafting bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unrivaled precision and exceptional 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.
- With a legacy of excellence spanning more than twenty illustrious years, we harmonize extensive production expertise with remarkable technical acumen and process knowledge. Our steadfast dedication guarantees not only premium quality but also groundbreaking innovation, positioning us as trailblazers in the domain of precision engineering.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Evaluation of Incoming Materials
Upon entering our renowned facility, each raw material undergoes a comprehensive, rigorous assessment, meticulously crafted to meet our outstanding quality benchmarks. This exhaustive analysis delves deeply into chemical compositions and includes a meticulous inspection of physical properties. In our unwavering commitment to perfection, we require suppliers to provide a Certificate of Origin along with a duly endorsed Declaration of Conformity. This ensures that only materials of unmatched integrity and purity are chosen for our precision-driven metal machining endeavors. Our rigorous protocol seamlessly aligns with our steadfast commitment to delivering unmatched quality, echoing the promise of perfection we consistently uphold.
Precise Quality Control Throughout the Process
Within our advanced machining operations, every component is meticulously examined to ensure dimensions and tolerances not only meet but exceed our exacting specifications. Our vigilant and continuous inspection protocol is exceptional at identifying potential defects early, preventing non-conforming parts from advancing in the process. This diligent approach is crucial in minimizing the risk of substandard goods, ensuring superior quality at every stage, and maintaining unparalleled excellence throughout the production journey, exemplifying our unwavering commitment to quality.
Innovative and Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) stands as a vital strategic initiative, essential for the early identification and swift resolution of potential production challenges. This proactive approach ensures any issues are efficiently addressed before escalating into significant production concerns. The meticulous precision of our FAI significantly reduces quality risks, ensuring that our products consistently meet the highest industry standards. This relentless commitment to excellence permeates the entire production cycle, ensuring we consistently exceed the most stringent quality benchmarks and fortifying our reputation for superior quality.
Comprehensive and Rigorous Final Inspection
Before our products leave our esteemed facility, they undergo a comprehensive, rigorous final inspection process. This meticulous evaluation covers all aspects, including dimensions, appearance, performance, and customer-specific requirements. Our thorough inspections embody our relentless dedication to quality, ensuring every part dispatched adheres to our exacting standards. We remain unwavering in our mission to deliver only the highest-caliber products to our valued customers, sustaining our outstanding reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. proudly carries a rich legacy that extends all the way back to 2002. We have rightly earned our place as a leading luminary in the realm of high-precision component machining. With more than two decades of relentless innovation, we have ascended to the very pinnacle of technical research, solidifying our status as true pioneers and visionaries within the precision engineering sector. Our journey has propelled us to extraordinary technical heights, fortifying our revered reputation in the market as the undisputed leaders in the field. Our unmatched expertise in precision medical machining ensures the achievement of exceptionally tight tolerances and flawless surface finishes, positioning us as the ultimate partner of choice for the medical industry.
Boasting four strategically positioned production bases in the dynamic hubs of Shenzhen and Guiyang, powered by a formidable team of over 400 exceptionally skilled professionals, Donghui has masterfully constructed a comprehensive and vertically integrated industry chain. This seamless integration spans from research and development through to production and delivery, enabling us to not only meet but consistently surpass our customers' diverse demands with outstanding efficiency and unmatched quality. Our state-of-the-art facilities are meticulously crafted to tackle the most intricate and demanding machining challenges, securing our revered reputation for excellence and trailblazing 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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