Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we are driven by an unwavering commitment to excellence, where passion seamlessly blends with our profound mastery in the intricate art and meticulous science of precision manufacturing. We aren't just participants; we are distinguished leaders, consistently elevating industry standards to unprecedented heights and setting new benchmarks for all to follow. Our unmatched expertise illuminates the path in the realm of high-end component manufacturing, paving the way for impeccable precision and outstanding excellence. With each endeavor, we redefine industry benchmarks, consistently elevating the bar and reshaping the landscape of precision manufacturing, ensuring we remain at the forefront of innovation. As pioneers in innovation, we lead the charge in designing and producing groundbreaking intelligent automation equipment. Our cutting-edge solutions seamlessly cater to a vast array of industries, addressing a wide spectrum of applications and needs, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and cutting-edge solutions for avant-garde medical devices, we ensure strict adherence to the industry's most demanding quality standards, consistently pushing the frontiers of innovation in healthcare technology.
- Semiconductors: Ushering in a new era in chip manufacturing and specialized machinery with the provision of crucial core components, we play a pivotal role in driving the rapid advancement and technological breakthroughs of the semiconductor industry.
- New Energy: Actively engaged 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 greener future and ensuring a sustainable path forward.
- Automotive: Delivering essential components that ignite innovation within the automotive sector, we propel the evolution of smart and electric vehicles with unrivaled precision and steadfast 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. Every piece we produce is a testament to our unwavering commitment to unmatched precision and superior quality, cementing our reputation as industry leaders.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Our operations are a shining beacon of cutting-edge technology and innovation, showcasing a magnificent fleet of over 300 state-of-the-art machines. Each one is a masterpiece of engineering brilliance, representing the very forefront of precision and technical prowess. Globally Acknowledged for Excellence Precision Machining Tools of the Highest OrderHarnessing the power of cutting-edge machinery, our capabilities embrace a vast array of equipment categories, empowering us to tackle the most complex machining challenges across diverse industries. Our peerless precision and superior efficiency redefine excellence, setting new industry benchmarks while epitomizing steadfast reliability and groundbreaking innovation.
- With a prestigious legacy spanning over two decades, we merge rich production experience with exceptional technical and process expertise. This dynamic fusion guarantees unparalleled quality and visionary innovation, establishing us as trailblazers in precision engineering. We seamlessly deliver elite, bespoke solutions that meet the sophisticated demands of our clients, reinforcing our reputation as leaders in transformative innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Meticulous Inspection of Incoming Materials: Ensuring Superior Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., we lay the foundation for exceptional quality through meticulous evaluation and rigorous inspection of every material entering our state-of-the-art facility. Our dedicated team of experts conducts comprehensive analyses, carefully examining both the chemical and physical properties to secure materials of the highest caliber for our CNC machining parts. Each supplier must provide a Certificate of Origin accompanied by a stamped Declaration of Conformity, underscoring our steadfast dedication to quality assurance. Only materials demonstrating superior purity and integrity are accepted, which are crucial for our high-precision medical machining services. Our stringent verification process stands as an unyielding guardian, steadfastly maintaining exceptional quality standards at every stage, thereby strengthening our commitment to delivering products of impeccable precision and unparalleled excellence.
In-Process Quality Assurance: Ensuring Excellence at Every Turn
Throughout the expertly coordinated precision machining processes, every component is meticulously inspected to ensure dimensions and tolerances not only meet but exceed our exceptional standards. Our ongoing inspection protocols function as a masterfully orchestrated symphony, adeptly identifying discrepancies early on to prevent the progression of non-conforming parts. This proactive vigilance is pivotal in mitigating the risk of inferior products, safeguarding exceptional quality throughout each production phase, and ensuring our standard of excellence is upheld without fail, from beginning to end.
Strategic First Article Inspection (FAI): Ensuring Precision from the Outset
Our First Article Inspection (FAI) serves as a cornerstone strategic pillar, endowed with the foresight to proactively address potential production challenges from the outset. This foresight acts as a reliable guardian, preventing issues from escalating into significant production dilemmas. The meticulous precision of our FAI process is vital 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 surpass the zenith of quality.
Comprehensive Final Inspection: Attaining the Pinnacle of Perfection
Before any product departs from our facility, it undergoes a final inspection process characterized by unmatched meticulousness and thoroughness. This rigorous evaluation meticulously scrutinizes dimensions, visual aesthetics, performance, and any specialized customer requirements with unparalleled precision. Our exhaustive inspection process is a testament to our relentless pursuit of quality, ensuring every product leaving our facility is a shining exemplar of our stringent standards. Our unwavering commitment 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 of brilliance in the world of precision engineering, was established in 2009, yet its legacy of excellence harkens back to 2002. This illustrious history underscores our position as a revered authority in high-precision component machining. Driven by an insatiable quest for transformative innovation, we are at the forefront of technical research, consistently pushing the boundaries and redefining the art of precision engineering. For over two decades, we have epitomized visionary leadership, setting unparalleled standards and venturing into uncharted territories within this ever-evolving field. We possess an extraordinary level of technical mastery that propels us to the pinnacle of the industry, distinguishing us as authentic pioneers. Our unparalleled skill in precision medical machining services empowers us to achieve ultra-tight tolerances and flawless surface finishes with ease. This solidifies our role as the partner of choice for the medical sector, elevating our distinguished reputation and sealing our legacy of unsurpassed excellence.
With four strategically positioned production bases in the vibrant cities of Shenzhen and Guiyang, supported by a skilled workforce of over 400 high-caliber professionals, Donghui forges a formidable, vertically integrated industry chain that seamlessly blends research, development, production, and delivery. This integration ensures that we not only meet but exceed the diverse needs of our clients with unmatched efficiency and top-tier quality. Our state-of-the-art facilities are fully equipped to tackle the most intricate and demanding machining challenges, maintaining our esteemed status as leaders and innovators in 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)