Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are not just fulfilling a duty; we passionately pursue the exquisite artistry and meticulous science of precision manufacturing. With steadfast dedication to flawlessness, we elevate each component to the pinnacle of craftsmanship and excellence, embodying the zenith of industrial artistry. Our unparalleled expertise illuminates the domain of high-end component fabrication, forging a path to unmatched precision and extraordinary excellence, setting new standards of industrial quality. As pioneers in innovation, we specialize in crafting revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly cater to a broad spectrum of industries, specifically addressing diverse application needs, including:
- Medical and Biotech: Revolutionizing Healthcare with Unparalleled PrecisionWe supply meticulously crafted, high-precision components and cutting-edge solutions for groundbreaking medical devices, unwaveringly upholding the premium quality standards synonymous with our esteemed brand, ensuring reliability and innovation in healthcare.
- Semiconductors: Driving Technological BreakthroughsWe support the semiconductor industry with essential core components vital for chip production and related equipment, ensuring seamless operations and fostering technological innovation.
- New Energy: Pioneering the Path to Sustainable InnovationWe actively participate in the sustainable advancement of innovative energy equipment, propelling eco-friendly technological innovations that lead the charge towards a greener future.
- Automotive: Energizing the Future of MobilityWe provide crucial components that drive innovation in the automotive sector, playing a significant role in the evolution of smart and electric vehicles, energizing the future of mobility.
Main Products: Expertise in Tailored Customization
- We excel in crafting bespoke, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unmatched precision and exceptional quality, tailored to meet specific industry demands.
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 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.
State-of-the-Art Production Equipment
High-Precision Inspection Equipment
Quality Ensurance
Exceptional Incoming Material Evaluation
Upon entering our renowned facility, each raw material embarks on a journey of comprehensive scrutiny, designed to meet our illustrious quality benchmarks with precision. This exhaustive analysis encompasses a deep dive into chemical compositions, complemented by a meticulous inspection of physical properties. Our quest for perfection mandates a Certificate of Origin and a duly endorsed Declaration of Conformity from suppliers, ensuring materials of unmatched integrity and purity for our precision-driven medical machining. Our rigorous protocol mirrors our steadfast commitment to delivering supreme quality, echoing our unyielding promise of perfection.
Precise In-Process Quality Control
Embedded within our state-of-the-art machining operations, every component undergoes meticulous scrutiny to ensure dimensions and tolerances surpass our rigorous specifications. Our vigilant inspection protocol is adept at early defect identification, preventing non-conforming parts from advancing in the process. This diligent approach minimizes substandard goods' risks, guaranteeing superior quality at every production stage and showcasing our unwavering commitment to excellence.
Innovative and Proactive First Article Inspection (FAI)
Our First Article Inspection (FAI) represents a cornerstone strategic initiative, vital for early identification and swift resolution of potential production challenges. This proactive stance ensures any issues are efficiently addressed before escalating into significant problems. The meticulous precision of our FAI substantially mitigates quality risks, ensuring products consistently meet top-tier industry standards. This relentless pursuit of excellence permeates the entire production cycle, cementing our reputation for superior quality.
Comprehensive and Rigorous Final Inspection
Before our esteemed products leave our facility, they undergo a comprehensive and rigorous final inspection. This meticulous evaluation covers dimensions, appearance, performance, and customer-specific requirements. Our thorough inspections epitomize our relentless dedication to quality, ensuring every dispatched part adheres to our exacting standards. We remain committed to delivering only the highest-caliber products to our valued customers, maintaining our outstanding reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Since our establishment in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has been a beacon of innovation and excellence, with a legacy that extends back to 2002. We have carved out a prestigious position in high-precision component machining, continuously pushing the boundaries of technological advancement. For over twenty years, our dedication to groundbreaking research has cast us as pioneers in the precision engineering landscape, setting the gold standard for the industry. Our journey has been a testament to our relentless pursuit of perfection, elevating our technical prowess to remarkable heights. We have earned an enviable reputation as the quintessential leaders in precision medical machining, delivering tight tolerances and flawless surface finishes. Our unmatched expertise positions us as the preferred partner for the medical industry, where precision and reliability are paramount.
Boasting four strategically positioned production bases in the dynamic locales of Shenzhen and Guiyang, driven by a dynamic and skilled team exceeding 400 highly skilled professionals, Donghui has ingeniously developed a seamless and vertically integrated industry chain. This comprehensive chain encompasses research and development, production, and delivery, empowering us to not only fulfill but consistently surpass the varied demands of our clientele with unmatched efficiency and quality. Our cutting-edge facilities are purpose-built to tackle the most complex and challenging machining tasks, ensuring our esteemed reputation for excellence and pioneering leadership remains unparalleled.
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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