Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are powered by an unwavering commitment to transcendence, where passion seamlessly intertwines with profound expertise in the nuanced artistry and meticulous science of precision manufacturing. More than mere participants, we stand as eminent leaders, perpetually elevating the standards of the industry to unprecedented heights. Our unrivaled mastery illuminates the frontier of high-end component manufacturing, establishing the foundation for impeccable precision and extraordinary excellence. With every project, we redefine industry paradigms, ceaselessly raising the threshold and transforming the terrain of precision manufacturing. As trailblazers in innovation, we are at the forefront of designing and fabricating revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly accommodate a vast array of industries, meeting a diverse spectrum of applications and requirements, including:
- Medical and Biotech: By delivering meticulously crafted, high-precision components and pioneering solutions for cutting-edge medical devices, we ensure rigorous adherence to the industry's most stringent quality standards, constantly expanding the horizons of innovation.
- Semiconductors: Heralding a new era in chip manufacturing and machinery, we provide vital core components, playing a pivotal role in propelling the rapid progression of the semiconductor industry.
- New Energy: Engaging actively in the dynamic and sustainable evolution of next-generation energy equipment, we lead the charge in environmentally conscious technological advancements, advocating passionately for a more sustainable future.
- Automotive: Supplying essential components that ignite innovation within the automotive sector, we drive the development of intelligent and electric vehicles with unmatched precision and steadfast reliability.
Main Products
- We take immense pride in fashioning customized non-standard components, catering extensively to the medical, automation, semiconductor, and automotive sectors. Each piece we produce stands as a testament to our pledge of unparalleled precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations radiate as a symbol of innovation and advancement, proudly showcasing a magnificent array of over 300 cutting-edge machines. Each machine stands as a remarkable tribute to superior engineering and unparalleled precision. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur state-of-the-art machinery empowers us to proficiently handle an extensive array of equipment categories. This unmatched capability enables us to precisely address complex machining requirements across numerous industries, delivering unparalleled precision and efficiency. We are setting unprecedented performance benchmarks, transforming industry standards with our dependable and groundbreaking solutions.
- With a proud legacy spanning two decades, we harness our vast production experience combined with profound technical and process expertise. This synergy guarantees exceptional quality and forward-thinking innovation, establishing us as pioneers in precision engineering. We consistently deliver elite solutions designed to fulfill the sophisticated requirements of our clients, solidifying our status as leaders in industry-changing innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unparalleled Examination of Incoming Materials: Ensuring Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our exceptional quality is underpinned by a meticulous evaluation and thorough inspection of every raw material entering our esteemed facility. Our dedicated team conducts an exhaustive analysis, rigorously assessing both the chemical and physical properties, ensuring we acquire only the finest materials for our CNC machining parts. We require suppliers to provide a Certificate of Origin along with a stamped Declaration of Conformity, underscoring our unwavering commitment to quality assurance. Only materials that exemplify the utmost purity and integrity are accepted, crucial for our precision medical machining services. Our stringent verification process acts as a steadfast guardian, upholding superior quality standards at every stage, reinforcing our pledge to deliver products that embody precise perfection and unmatched excellence.
In-Process Quality Assurance: Mastery in Precision at Every Stage
Throughout the seamless execution of our precision machining processes, every component is meticulously scrutinized to ensure dimensions and tolerances not only meet but exceed our exceptional standards. Our ongoing inspection protocols function like a harmonized symphony, skillfully detecting any discrepancies at the earliest stage to prevent the progression of non-conforming parts. This proactive vigilance is essential in reducing the risk of inferior products, securing outstanding quality throughout every phase of production, and ensuring that our standard of excellence is consistently upheld from start to finish.
Strategic First Article Inspection (FAI): Anticipating Perfection with Precision
Our First Article Inspection (FAI) stands as a crucial strategic pillar, endowed with the foresight to identify and proactively address potential production challenges at the outset. This forward-thinking approach serves as a reliable protector, preventing issues from developing into extensive production problems. The meticulous precision of our FAI process is vital in minimizing quality risks, ensuring our products consistently achieve the pinnacle of excellence. This relentless pursuit of perfection is intricately woven into every phase of our production journey, ensuring our standards continually surpass the peak of quality.
Comprehensive Final Inspection: Reaching the Apex of Perfection
Before any product leaves our facility, it undergoes a final inspection process marked by unparalleled meticulousness and thoroughness. This rigorous evaluation meticulously examines dimensions, visual aesthetics, performance, and any specialized customer requirements with unmatched precision. Our exhaustive inspection testifies to our relentless pursuit of quality, ensuring every product departing our facility is a shining exemplar of our stringent standards. Our steadfast commitment to delivering only the highest quality products to our esteemed customers reinforces our reputation for unmatched excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., a beacon of precision and innovation, was founded in 2009. With roots tracing back to 2002, we have established ourselves as a distinguished leader in high-precision component machining. Our unwavering commitment to transformative innovation pushes us to the forefront of technical research, where we consistently redefine the boundaries of the precision engineering landscape. For more than two decades, we have been trailblazers and visionaries, setting new standards and carving out new frontiers in this dynamic field. We boast unparalleled technical expertise that elevates us to the pinnacle of the industry, distinguishing us as true leaders. Our remarkable proficiency in precision medical machining services allows us to consistently deliver ultra-tight tolerances and impeccably flawless surface finishes. This cements our position as the preferred choice for the medical sector, further reinforcing our esteemed status and solidifying our reputation for unmatched excellence.
With four strategically located production bases in the vibrant cities of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 highly skilled professionals, Donghui boasts a robust, vertically integrated industry chain that seamlessly merges research and development with production and delivery. This integration ensures we not only meet but exceed the diverse needs of our clients with unparalleled efficiency and superior quality. Our state-of-the-art facilities are equipped to undertake the most intricate and demanding machining tasks, maintaining our esteemed reputation for pioneering leadership and excellence.
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)