Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication to excellence is a powerful driving force, propelling us forward with an unmatched passion for precision manufacturing. With our profound expertise, we don't just participate in the industry-we lead it, setting new standards of excellence and elevating the entire field to remarkable heights. Our exceptional expertise serves as a beacon in high-end component manufacturing, laying the foundation for utmost precision and superior excellence. We continually transform industry standards with each project, setting new benchmarks and revolutionizing the precision manufacturing landscape. As trailblazers of innovation, we lead the charge in crafting and producing revolutionary intelligent automation equipment. Our cutting-edge solutions seamlessly serve a vast array of industries, meeting diverse applications and needs, such as:
- Medical and Biotech: We meticulously engineer high-precision components and revolutionary solutions for cutting-edge medical devices, ensuring full compliance with the industry's strictest quality standards, all while continuously pushing innovation's boundaries.
- Semiconductors: Pioneering a new frontier in chip manufacturing and machinery, we provide essential core components that are vital to the semiconductor industry's rapid progress.
- New Energy: We are at the forefront of the dynamic and sustainable development of next-generation energy equipment, driving eco-friendly technological advancements and advocating for a greener, brighter future.
- Automotive: By supplying critical components that ignite innovation in the automotive sector, we contribute to the evolution of smart and electric vehicles with unmatched precision and steadfast reliability.
Main Products
- We are proud to meticulously craft bespoke non-standard components, serving the medical, automation, semiconductor, and automotive industries comprehensively. Each piece we create is a testament to our unwavering commitment to peerless precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations stand as a beacon of ingenuity and progress, proudly boasting an exquisite selection of over 300 state-of-the-art machines. Each machine showcases the pinnacle of superior engineering and precision, a tribute to our commitment to cutting-edge manufacturing. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur cutting-edge machinery empowers us to expertly address an expansive array of equipment categories. This unmatched capability allows us to masterfully fulfill the intricate machining demands across a multitude of industries, delivering unmatched precision and efficiency. We are redefining excellence by setting new performance benchmarks and revolutionizing industry standards with our unwavering reliability and commitment to craftsmanship.
- With a distinguished legacy spanning two decades, we leverage extensive production experience alongside profound technical and process expertise. This combination ensures the delivery of superior quality and innovative foresight, marking us as true trailblazers in precision engineering. We consistently deliver premium solutions that cater to the sophisticated needs of our clients, establishing our position as leaders in groundbreaking innovation and excellence.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unmatched Material Scrutiny: Ensuring Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unparalleled excellence in quality is founded on the meticulous analysis and rigorous inspection of every raw material entering our prestigious facility. A dedicated team conducts exhaustive evaluations, meticulously examining both the chemical and physical properties to ensure we procure only the finest materials for our CNC machining parts. We require suppliers to provide a Certificate of Origin and a stamped Declaration of Conformity, highlighting our unwavering dedication to quality assurance. Only materials that epitomize the highest standards of purity and integrity are accepted, vital for our high-precision medical machining services. Our stringent verification process serves as an unyielding guardian, steadfastly maintaining superior quality standards at every step, thereby fortifying our commitment to delivering products that embody unparalleled precision and supreme excellence.
In-Process Quality Assurance Mastery: Precision at Every Turn
Throughout our flawlessly orchestrated precision machining processes, each component undergoes meticulous examination to ensure dimensions and tolerances not only meet but exceed our stringent standards. Our continuous inspection protocols are like a symphony in perfect harmony, adeptly identifying any discrepancies at the earliest stage to prevent the advancement of non-conforming components. This proactive vigilance is crucial in mitigating the risk of inferior products, preserving exceptional quality in every phase of the production process, and ensuring our standard of excellence is consistently upheld from inception to completion.
Strategic First Article Inspection (FAI): Precision-Driven Perfection
Our First Article Inspection (FAI) is a fundamental strategic pillar, endowed with the foresight to identify and proactively address potential production challenges right from the start. This forward-thinking approach acts as a reliable safeguard, preventing small issues from escalating into large-scale production complications. The meticulous precision of our FAI process is crucial in minimizing quality risks, ensuring our products consistently reach the zenith of excellence. This relentless pursuit of perfection is intricately woven into every phase of our production journey, ensuring our standards always surpass the pinnacle of quality.
Comprehensive Final Inspection: Achieving Perfection's Apex
Before any product departs our facility, it undergoes a final inspection process defined by unmatched meticulousness and thoroughness. This rigorous evaluation exhaustively checks dimensions, visual aesthetics, performance, and any specialized customer requirements with unparalleled precision. Our comprehensive inspection stands as a testament to our relentless quest for quality, ensuring every product leaving our facility is a gleaming example of our strict standards. Our unwavering commitment to delivering only the highest quality products to our esteemed customers cements our reputation for unmatched excellence and steadfast 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)