Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we embody an unwavering commitment to supreme excellence. Here, our passion seamlessly intertwines with vast expertise in the intricate artistry and meticulous science of precision manufacturing. As distinguished leaders, we don't just participate; we set the pace, consistently elevating industry standards to unparalleled heights. Our unmatched expertise illuminates the path in high-end component manufacturing, creating a stage for impeccable precision and exceptional excellence. With every endeavor, we redefine industry benchmarks, perpetually raising the bar and transforming the landscape of precision manufacturing. As trailblazers of innovation, we lead the charge in the design and production of groundbreaking intelligent automation equipment. Our cutting-edge solutions effortlessly address a vast array of industries, tackling a diverse spectrum of applications and requirements, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and pioneering solutions for cutting-edge medical devices, we ensure rigorous adherence to the industry's toughest quality standards, relentlessly pushing the boundaries of innovation.
- Semiconductors: Ushering in a transformative era in chip manufacturing and machinery by providing vital core components, we play a crucial role in propelling the semiconductor industry's rapid advancement.
- New Energy: Actively contributing to the vibrant and sustainable evolution of next-generation energy equipment, we spearhead eco-friendly technological advancements, championing the vision of a greener future.
- Automotive: Supplying indispensable components that fuel innovation in 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 crafting bespoke, non-standard components, extensively serving the medical, automation, semiconductor, and automotive sectors. Each piece we produce is a testament to our commitment to unmatched precision and superior quality.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations are the epitome of innovation and advancement, shining brightly with an extraordinary collection of over 300 cutting-edge machines. Each machine exemplifies the pinnacle of engineering mastery and precision craftsmanship. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderOur state-of-the-art machinery gives us the power to precisely cater to a vast spectrum of equipment categories. This unmatched capability enables us to skillfully satisfy the intricate machining requirements of a multitude of industries, delivering precision and efficiency that are second to none. We are setting new standards of excellence by establishing groundbreaking performance benchmarks, transforming industry norms with our dependable prowess.
- With an illustrious legacy spanning two decades, we harness our extensive production experience coupled with profound technical and procedural expertise. This synergy ensures unparalleled quality and visionary innovation, marking us as pioneers in precision engineering. We consistently deliver superior solutions that fulfill the complex needs of our clients, reinforcing our status as leaders in transformative innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unrivaled Scrutiny of Incoming Materials: Ensuring Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., the bedrock of our superior quality is founded upon the meticulous evaluation and methodical inspection of every raw material entering our esteemed facility. Our dedicated team conducts an exhaustive analysis, meticulously assessing both chemical and physical attributes, guaranteeing the acquisition of materials of the highest caliber, quintessential for our CNC machining parts. We require suppliers to provide a Certificate of Origin and a stamped Declaration of Conformity, highlighting our unwavering commitment to quality assurance. Only those materials epitomizing the utmost purity and integrity are accepted, crucial for our high-precision medical machining services. Our stringent verification process serves as an unyielding guardian, vigilantly preserving superior quality standards at every stage, thereby reinforcing our dedication to delivering products that embody impeccable precision and unmatched excellence.
In-Process Quality Assurance: Mastering Precision at Every Stage
Within the seamless execution of our precision machining processes, each component undergoes rigorous scrutiny to ensure that dimensions and tolerances not only meet but surpass our exceptional standards. Our continuous inspection protocols operate as a masterfully coordinated symphony, adeptly identifying discrepancies at the earliest stage to prevent the advancement of non-conforming parts. This proactive vigilance is vital in reducing the risk of inferior products, safeguarding exceptional quality throughout each phase of the production process, and ensuring our standard of excellence is consistently upheld from inception to completion.
Strategic First Article Inspection (FAI): Predicting Perfection with Precision
Our First Article Inspection (FAI) stands as a pivotal strategic cornerstone, equipped with the foresight to identify and proactively address potential production challenges at the outset. This forward-thinking approach acts as a reliable guardian, preventing the evolution of issues into extensive production dilemmas. The meticulous precision of our FAI process is essential in minimizing quality risks, ensuring our products consistently reach the zenith of excellence. This relentless quest for perfection is intricately woven into every phase of our production journey, ensuring our standards consistently surpass the acme of quality.
Comprehensive Final Inspection: Reaching the Pinnacle of Perfection
Before any product leaves our facility, it undergoes a final inspection process characterized by unparalleled meticulousness and thoroughness. This rigorous evaluation meticulously examines dimensions, visual aesthetics, performance, and any specialized customer requirements with extraordinary precision. Our exhaustive inspection stands as a testament to our relentless pursuit of quality, guaranteeing that every product leaving our facility is a shining epitome of our stringent standards. Our unwavering dedication to delivering only the highest quality products to our esteemed customers solidifies 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)