Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our unwavering commitment to unmatched excellence fuels our journey, where profound passion intertwines with our profound expertise in the intricate art and meticulous science of precision manufacturing. More than just participants, we stand as distinguished leaders, consistently elevating industry standards to unprecedented heights of achievement. Our unrivaled expertise illuminates the path in the esteemed realm of high-end component manufacturing, crafting a stage for impeccable precision and unparalleled excellence. With every endeavor, we redefine industry benchmarks, ceaselessly raising the bar and transforming the landscape of precision manufacturing. As trailblazers of innovation, we lead the design and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly cater to an expansive spectrum of industries, addressing a diverse array of applications and requirements, including:
- Medical and Biotech: Delivering meticulously crafted, high-precision components and breakthrough solutions for avant-garde medical devices, we ensure strict adherence to the industry's most exacting quality standards, consistently expanding the horizons of innovation.
- Semiconductors: Pioneering a new era in chip manufacturing and machinery with the provision of critical core components, we play a pivotal role in propelling the rapid advancement of the semiconductor industry.
- New Energy: Actively engaging in the dynamic and sustainable evolution of next-generation energy equipment, we lead the charge in eco-friendly technological advancements, championing the cause of a sustainable and greener future.
- Automotive: Supplying essential components that fuel innovation within the automotive sector, we drive the evolution of smart and electric vehicles with unmatched precision and unwavering reliability.
Main Products
- We take immense pride in crafting bespoke non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors. Every piece we produce stands as a testament to our unwavering commitment to precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations shine brightly as a symbol of innovation and advancement, proudly showcasing a magnificent collection of over 300 cutting-edge machines. Each is a masterwork of exceptional engineering and remarkable precision. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur cutting-edge machinery empowers us to expertly address a diverse spectrum of equipment categories. This extraordinary capability enables us to skillfully meet the intricate machining needs of numerous industries, delivering precision and efficiency that are simply unrivaled. We are setting new industry standards with outstanding performance benchmarks, revolutionizing reliability and excellence.
- With a proud legacy spanning two decades, we harness our extensive production expertise and profound technical and process knowledge. This combination guarantees exceptional quality and forward-thinking innovation, distinguishing us as true pioneers in precision engineering. We consistently deliver top-tier solutions that cater to the sophisticated needs of our clients, solidifying our status as leaders in groundbreaking innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unmatched Examination of Incoming Materials: Ensuring Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we build our stellar reputation for quality on a foundation of meticulous scrutiny and methodical examination of every raw material that enters our esteemed facility. Our dedicated team conducts a comprehensive analysis, thoroughly evaluating both chemical and physical attributes to secure the highest-quality materials essential for our CNC machining parts. To further our commitment to quality, we require suppliers to provide a Certificate of Origin and a stamped Declaration of Conformity. We only accept materials that demonstrate the utmost purity and integrity, crucial for our high-precision medical machining services. Our rigorous verification process acts as a steadfast guardian, diligently maintaining superior quality standards at every step, reinforcing our pledge to deliver products that epitomize refined precision and unparalleled excellence.
In-Process Quality Assurance: Achieving Precision at Every Stage
Within the flawless execution of our precision machining operations, each component is subjected to meticulous scrutiny, ensuring that dimensions and tolerances not only meet but exceed our exceptional standards. Our continuous inspection procedures operate like a finely tuned symphony, expertly identifying discrepancies at the earliest possible stage to prevent the advancement of non-conforming parts. This proactive vigilance is crucial in mitigating the risk of substandard products, preserving exceptional quality throughout every phase of production, and ensuring 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) serves as a pivotal strategic cornerstone, endowed with the foresight to preemptively identify and address potential production challenges at the outset. This proactive approach acts as a reliable guardian, preventing issues from escalating into large-scale production concerns. The meticulous precision of our FAI process is crucial in minimizing quality risks, ensuring our products consistently achieve the pinnacle of excellence. This unwavering dedication to perfection is intricately woven into every stage of our production journey, ensuring our standards consistently surpass the zenith of quality.
Comprehensive Final Inspection: Reaching the Pinnacle of Perfection
Before any product departs our facility, it undergoes a final inspection process marked by unmatched meticulousness and rigor. This detailed evaluation scrutinizes dimensions, visual aesthetics, performance, and any specialized customer requirements with exceptional precision. Our comprehensive inspection is a testament to our relentless pursuit of quality, guaranteeing that every product leaving our facility is a shining example of our stringent standards. Our unwavering commitment to delivering only the highest quality products to our valued customers reinforces our reputation for unsurpassed excellence and steadfast reliability.
Packaging & Shipping
Company Profile
Founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. stands as a beacon of precision and excellence in the realm of high-precision component machining. With roots tracing back to 2002, we are driven by an unwavering commitment to transformative innovation, propelling us to the pinnacle of technical research and development. For over two decades, we have established ourselves as pioneers and visionaries, consistently pushing the boundaries of what is possible in the precision engineering landscape. We possess unmatched technical expertise, allowing us to earn an exceptional reputation that distinguishes us as industry leaders. Our outstanding proficiency in precision medical machining services empowers us to achieve ultra-tight tolerances and impeccably flawless surface finishes with consistency, making us the go-to choice in the medical sector and further bolstering our esteemed standing.
With four strategically positioned production bases in the dynamic cities of Shenzhen and Guiyang, supported by a dedicated workforce of over 400 highly skilled professionals, Donghui boasts a robust, vertically integrated industry chain. This seamlessly blends research and development, production, and delivery, ensuring that 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 handle the most intricate and demanding machining tasks, solidifying our esteemed reputation for excellence and pioneering leadership in the field.
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)