Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our passion fuels our dedication to excellence, seamlessly blending with our profound expertise in the intricate and meticulous science of precision manufacturing. We don't just partake; we stand as distinguished leaders, consistently setting industry standards to new, unparalleled heights and crafting benchmarks for others to aspire to. Our unparalleled mastery lights the way in high-end component manufacturing, crafting a path of impeccable precision and outstanding excellence. With every endeavor, we redefine industry standards, consistently elevating expectations and reshaping the precision manufacturing landscape, ensuring our position at the pinnacle of innovation. As trailblazers in innovation, we spearhead the design and production of revolutionary intelligent automation equipment. Our state-of-the-art solutions seamlessly serve a diverse range of industries, meeting a wide spectrum of applications and demands, including:
- Medical and Biotech: Delivering meticulously crafted, ultra-precise components and cutting-edge solutions for pioneering medical devices, we ensure strict compliance with the industry's most rigorous quality standards, consistently expanding the horizons of innovation in healthcare technology.
- Semiconductors: Ushering in a new era of chip manufacturing and specialized machinery by providing vital core components, we play a pivotal role in driving rapid advancements and technological breakthroughs within the semiconductor industry.
- New Energy: Actively involved in the vibrant and sustainable advancement of next-generation energy equipment, we lead the charge in eco-friendly technological innovation, championing a greener future and ensuring a sustainable trajectory.
- Automotive: Delivering critical components that ignite innovation within the automotive industry, we propel the evolution of smart and electric vehicles with unrivaled precision and unwavering reliability, powering the future of transportation.
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 unwavering commitment to unmatched precision and superior quality, solidifying our status as industry leaders.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations are a shining symbol of innovation and advancement, proudly featuring an exquisite collection of over 300 state-of-the-art machines. Each machine is a testament to superior engineering and precision, embodying the pinnacle of technical mastery. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderEquipped with cutting-edge machinery, our capabilities extend across a broad spectrum of equipment categories, enabling us to meet the most intricate machining demands across various industries. Our unmatched precision and efficiency set new standards of excellence, revolutionizing industry benchmarks with unwavering reliability and innovation.
- With an illustrious legacy spanning two decades, we combine extensive production experience with formidable technical and process expertise. This synergy guarantees superior quality and forward-thinking innovation, positioning us as pioneers in precision engineering. We consistently deliver elite solutions tailored to the sophisticated needs of our clients, solidifying our stature as leaders in transformative innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unmatched Inspection of Incoming Materials: Ensuring Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., the foundation of our extraordinary quality lies in our comprehensive and meticulous assessment of every material that enters our state-of-the-art facility. Our dedicated specialists conduct in-depth analyses, thoroughly examining the chemical and physical attributes to guarantee only the finest materials, crucial for the integrity of our CNC machining parts. We mandate suppliers to furnish a Certificate of Origin coupled with a stamped Declaration of Conformity, underscoring our steadfast commitment to impeccable quality assurance. Only materials demonstrating exceptional purity and integrity are embraced, essential for our high-precision medical machining services. Our stringent verification procedures act as vigilant custodians, unwaveringly upholding superior quality standards at every juncture, solidifying our mission to deliver products with impeccable precision and unparalleled excellence.
In-Process Quality Assurance: Mastering Precision at Every Stage
In the seamless orchestration of our precision machining endeavors, each component is meticulously scrutinized to ensure dimensions and tolerances not only meet but surpass our stringent standards. Our perpetual inspection protocols function as a masterfully orchestrated symphony, skillfully identifying discrepancies at an early stage to thwart the progression of any non-conforming parts. This proactive vigilance plays a pivotal role in mitigating the risk of inferior products, preserving exceptional quality throughout each production phase, and ensuring our standard of excellence is consistently maintained from inception to completion.
Strategic First Article Inspection (FAI): Perfecting Precision from the Start
Our First Article Inspection (FAI) is a pivotal strategic pillar, endowed with the foresight to proactively address potential production challenges at an early stage. This foresight serves as a dependable guardian, preventing issues from escalating into significant production obstacles. The meticulous precision of our FAI process is indispensable in minimizing quality risks, ensuring our products consistently reach the pinnacle of excellence. This relentless pursuit of perfection is intricately woven into every phase of our production journey, guaranteeing our standards consistently transcend the zenith of quality.
Comprehensive Final Inspection: Achieving Perfection's Pinnacle
Before any product departs from our facility, it undergoes a final inspection process distinguished by unparalleled meticulousness and thoroughness. This rigorous evaluation intricately scrutinizes dimensions, visual aesthetics, performance, and any specialized customer requirements with unmatched precision. Our exhaustive inspection serves as a testament to our relentless pursuit of quality, ensuring every product exiting our facility exemplifies our stringent standards. Our unwavering dedication to delivering only the highest quality products to our esteemed customers fortifies our reputation for unmatched excellence and reliability.
Packaging & Shipping
Company Profile
Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., a beacon in the universe of precision and innovation, embarked on its illustrious journey in 2009. Our rich legacy, tracing its roots back to 2002, is a resounding testament to our esteemed leadership in the art and science of high-precision component machining. Our ceaseless pursuit of transformative innovation catapults us to the apex of technical research, where we continuously challenge and expand the boundaries of precision engineering. For over two decades, we have embodied the essence of pioneering visionaries, setting unrivaled standards and exploring uncharted territories in this ever-evolving field. We are endowed with unmatched technical expertise that propels us to the pinnacle of the industry, heralding us as true leaders. Our extraordinary mastery in precision medical machining services enables us to consistently achieve ultra-tight tolerances and attain flawless surface finishes. This firmly establishes us as the partner of choice for the medical sector, amplifying our esteemed prestige and solidifying our reputation for unparalleled excellence.
With four strategically located production bases in the vibrant cities of Shenzhen and Guiyang, backed by an elite team of over 400 highly skilled professionals, Donghui orchestrates a formidable, vertically integrated industry chain that seamlessly marries research, development, production, and delivery. This integration assures that we not only meet but exceed the diverse needs of our clients with unmatched efficiency and superior quality. Our state-of-the-art facilities are fully equipped to tackle the most intricate and demanding machining challenges, sustaining our revered 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)