Product application
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., our dedication is woven with a passion for excellence, harmonizing the delicate artistry and exacting science of precision manufacturing. We are more than industry participants; we are visionaries, consistently redefining industry standards and elevating the field to unprecedented levels. Our exceptional expertise lights the way in the realm of high-end component manufacturing, setting a benchmark of impeccable precision and extraordinary craftsmanship. With every project, we transform industry expectations, achieving excellence that is second to none. As pioneers of innovation, we lead the charge in the creation of groundbreaking intelligent automation equipment. Our state-of-the-art solutions effortlessly meet a vast array of industry needs, addressing a diverse range of applications and demands, including:
- Medical and Biotech: Delivering meticulously engineered, high-precision components and groundbreaking solutions for cutting-edge medical devices, upholding the most stringent quality and compliance standards of the industry.
- Semiconductors: Transforming chip manufacturing and its associated technology with essential components that are integral to the rapid evolution of the semiconductor sector.
- New Energy: Pioneering the sustainable development of next-gen energy solutions, we are at the helm of eco-conscious technological advancements.
- Automotive: Providing indispensable components that fuel innovation in the automotive sector, supporting the evolution of smart and electric vehicles with exceptional precision and reliability.
Main Products
- We excel in producing custom non-standard components, extensively serving the medical, automation, semiconductor, and automotive industries, offering unparalleled precision and superior quality in every meticulously crafted piece.
Why choose us
Core Advantages
- A Fleet of Unparalleled Excellence Experience the pinnacle of technological prowess with our exceptional operations, showcasing an impressive collection of over 300 carefully selected machines. Each piece embodies the height of engineering innovation, reflecting our commitment to cutting-edge technology and superior expertise. world-renowned precision machining toolsThese state-of-the-art machines empower us with the versatility to expertly address a wide array of equipment categories, thereby enabling us to meet the complex machining requirements of diverse industries with unparalleled precision and efficiency. We are setting unprecedented benchmarks, transforming the landscape of performance and reliability, and redefining the standards of excellence.
- Boasting an illustrious history of two decades, we leverage our extensive production experience along with robust technical and process expertise. This unwavering commitment ensures exceptional quality and visionary innovation, distinguishing us as the vanguards of precision engineering. We consistently deliver premier solutions that satisfy the sophisticated expectations of our clients, affirming our leadership in innovation.
State-of-the-Art, Cutting-Edge Production Equipment
High-Precision, Advanced Inspection Equipment
Quality Ensurance
Unrivaled Incoming Material Examination: Ensuring Purity and Integrity
At Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd., every raw material that graces our esteemed facility is subject to an uncompromising and detailed examination. Our vigilant team ensures that no aspect goes unchecked. This rigorous analysis delves deep into the chemical and physical properties, selecting only the crème de la crème of materials for our precision CNC machining components. Suppliers must present a Certificate of Origin along with a stamped Declaration of Conformity, underscoring our relentless pursuit of quality excellence. We accept solely those materials that epitomize purity and integrity, vital to our precision medical machining services. Our stringent authentication process stands as a vigilant sentinel, meticulously maintaining exceptional quality standards at every juncture, fortifying our unwavering commitment to delivering products of unparalleled refinement and precision.
In-Process Quality Assurance: Mastering Precision at Every Turn
Within the seamless flow of our precise machining operations, each component undergoes rigorous scrutiny, ensuring dimensions and tolerances not merely meet but exceed our lofty benchmarks. Our continuous inspection protocol functions like a finely tuned symphony, adeptly identifying any discrepancies at the earliest possible stage, thereby averting the progression of non-conforming parts. This vigilant approach is essential for mitigating the risk of substandard products, safeguarding superior quality at every phase of production, and ensuring our standard of excellence is unwaveringly upheld throughout the entire orchestration of processes.
Strategic First Article Inspection (FAI): Precision in Anticipating Flawlessness
Our First Article Inspection (FAI) serves as a strategic cornerstone, imbued with the foresight to identify and address potential production challenges from the very beginning. This proactive measure acts as an unwavering safeguard, preemptively resolving issues before they escalate into mass production dilemmas. The exhaustive precision of our FAI process is crucial for minimizing quality risks, ensuring our products consistently ascend to the zenith of excellence. This steadfast commitment to perfection is intricately woven into every phase of the production journey, guaranteeing our standards consistently transcend the highest realms of quality.
Comprehensive Final Inspection: Embodying Perfection's Apex
Before any product exits our facility, it undergoes a final inspection distinguished by unparalleled meticulousness and rigor. This scrupulous process assesses dimensions, visual appeal, performance, and any specific customer requirements with extraordinary precision. Our comprehensive inspection not only stands as a testament but as a commitment to our relentless pursuit of quality, ensuring every product that leaves our facility is a beacon of our exacting standards. Our dedication to delivering only the highest quality products to our esteemed customers fortifies our reputation for unparalleled excellence and unwavering reliability.
Packaging & Shipping
Company Profile
Founded in 2009, Shenzhen Donghui Precision Mechanical & Electrical Co., Ltd. proudly traces its illustrious roots back to 2002. Emerging as a beacon of excellence in high-precision component machining, we have consistently illuminated the path of technological advancement. For more than two decades, our unwavering dedication to transformative innovation has secured our esteemed position as pioneers and visionary leaders in the precision engineering domain, consistently pushing the boundaries of what's possible. We boast an exceptional depth of technical expertise, crafting a stellar market reputation that distinctly sets us apart as industry paragons. Our unparalleled proficiency in precision medical machining services empowers us to achieve extraordinarily precise tolerances and impeccably flawless surface finishes, reinforcing our status as the premier choice in the medical industry. Our commitment to perfection is evident in every facet of our operations, ensuring we remain at the forefront of innovation.
With four strategically positioned production bases in the vibrant cities of Shenzhen and Guiyang, complemented by a dedicated workforce of over 400 highly skilled professionals, Donghui has meticulously crafted a robust, vertically integrated industry chain that seamlessly unites research and development, production, and delivery. This ensures that we consistently meet and exceed the multifaceted needs of our clients with unmatched efficiency and unparalleled quality. Our state-of-the-art facilities are equipped to tackle the most intricate and challenging machining tasks, upholding our esteemed reputation for excellence and innovative leadership.
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)