Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we transcend the ordinary as we passionately chase the exquisite artistry and meticulous science that define precision manufacturing. With unwavering commitment to perfection, each component is elevated to the highest levels of craftsmanship and excellence, illustrating our dedication to flawlessness. Our unmatched expertise shines brilliantly in the realm of high-end component fabrication, creating a path to unparalleled precision and extraordinary excellence. Leading the forefront of innovation, we specialize in the creation of pioneering intelligent automation equipment. Our state-of-the-art solutions adeptly serve a broad spectrum of industries, meticulously addressing diverse application needs, including:
- Medical and Biotech: Revolutionizing Healthcare with Unmatched PrecisionWe supply intricately crafted, high-precision components and advanced solutions for cutting-edge medical devices, consistently upholding the superior quality standards synonymous with our esteemed brand.
- Semiconductors: Fueling Technological AdvancementsWe support the semiconductor industry with indispensable core components critical for chip production and associated equipment, ensuring smooth operations and promoting innovation.
- New Energy: Leading the Charge Towards Sustainable InnovationWe actively contribute to the sustainable progress of innovative energy equipment, driving eco-friendly technological developments forward.
- Automotive: Powering the Future of MobilityWe deliver essential components that fuel innovation in the automotive sector, making significant contributions to the evolution of smart and electric vehicles.
Main Products: Mastery in Tailored Customization
- We excel in designing tailor-made, non-standard customized components, extensively serving the medical, automation, semiconductor, and automotive industries with unparalleled precision and exceptional 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 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
Unparalleled Incoming Material Evaluation
Upon arrival at our esteemed facility, each raw material undergoes a comprehensive and thorough evaluation process, meticulously designed to meet our exceptional quality standards. This extensive analysis includes a detailed examination of chemical compositions and a precise inspection of physical properties. In our steadfast pursuit of perfection, we require suppliers to provide a Certificate of Origin along with an officially endorsed Declaration of Conformity. This ensures that only materials of unmatched integrity and purity are selected for our precision-focused metal machining ventures. Our stringent protocol aligns seamlessly with our unwavering commitment to delivering unmatched quality, reflecting the promise of perfection we consistently uphold.
Exacting In-Process Quality Control
Within our state-of-the-art machining operations, each component is meticulously inspected to ensure dimensions and tolerances not only meet but exceed our rigorous specifications. Our continuous and vigilant inspection protocol expertly identifies potential issues early, preventing non-conforming parts from progressing further in the process. This diligent approach is crucial in minimizing the risk of substandard products, ensuring exceptional quality at every stage and maintaining unparalleled excellence throughout the production journey, exemplifying our steadfast commitment to quality.
Innovative and Strategic First Article Inspection (FAI)
Our First Article Inspection (FAI) serves as a crucial strategic initiative, vital for the early detection and swift resolution of potential production challenges. This proactive approach ensures that any issues are efficiently addressed before they escalate 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 unwavering commitment to excellence permeates the entire production cycle, allowing us to consistently surpass the most stringent quality benchmarks and bolstering our reputation for superior quality.
Thorough and Comprehensive Final Inspection
Before our products leave our esteemed facility, they undergo a comprehensive and meticulous final inspection process. This detailed evaluation covers all aspects, including dimensions, appearance, performance, and customer-specific requirements. Our thorough inspections embody our unwavering dedication to quality, ensuring that every part dispatched adheres to our exacting standards. We remain committed to delivering only the highest-caliber products to our valued customers, upholding our outstanding reputation for excellence and reliability.
Packaging & Shipping
Company Profile
Established in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. has emerged as a beacon of innovation and craftsmanship, with roots firmly planted since 2002. Our illustrious history is steeped in a tradition of groundbreaking high-precision component machining, earning us a prestigious reputation. With over two decades of unwavering dedication and advancement, we have ascended to the apex of technical research, cementing our esteemed status as trailblazers and visionaries within the precision engineering sphere. Our journey has propelled us to extraordinary technical heights, enhancing our revered market reputation as the unrivaled leaders in the field. Our unmatched expertise in precision medical machining ensures the realization 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 bustling centers of Shenzhen and Guiyang, driven by an elite team of over 400 extraordinarily skilled professionals, Donghui has masterfully crafted a comprehensive and vertically integrated industry chain. This seamless integration spans research and development, production, and delivery, enabling us to consistently exceed our customers' diverse needs with unparalleled efficiency and supreme quality. Our cutting-edge facilities are meticulously tailored to tackle the most intricate and demanding machining challenges, preserving our esteemed reputation for unparalleled excellence and pioneering 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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